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aa6bb135 1/*
3c7d0945 2 * Copyright 2001-2018 The OpenSSL Project Authors. All Rights Reserved.
deb2c1a1 3 *
4a8b0c55 4 * Licensed under the Apache License 2.0 (the "License"). You may not use
aa6bb135
RS		 5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
deb2c1a1
DSH		 8 */
9
8c84b677 10#include <openssl/opensslconf.h>
5158c763
MC		 11#include <openssl/crypto.h>
12#include <openssl/evp.h>
13#include <openssl/err.h>
14#include <string.h>
15#include <assert.h>
16#include <openssl/aes.h>
17#include "internal/evp_int.h"
18#include "modes_lcl.h"
19#include <openssl/rand.h>
b1ceb439 20#include <openssl/cmac.h>
7141ba31 21#include "evp_locl.h"
0f113f3e
MC		 22
23typedef struct {
24 union {
25 double align;
26 AES_KEY ks;
27 } ks;
28 block128_f block;
29 union {
30 cbc128_f cbc;
31 ctr128_f ctr;
32 } stream;
33} EVP_AES_KEY;
34
35typedef struct {
36 union {
37 double align;
38 AES_KEY ks;
39 } ks; /* AES key schedule to use */
40 int key_set; /* Set if key initialised */
41 int iv_set; /* Set if an iv is set */
42 GCM128_CONTEXT gcm;
43 unsigned char *iv; /* Temporary IV store */
44 int ivlen; /* IV length */
45 int taglen;
46 int iv_gen; /* It is OK to generate IVs */
47 int tls_aad_len; /* TLS AAD length */
d6b34570 48 uint64_t tls_enc_records; /* Number of TLS records encrypted */
0f113f3e
MC		 49 ctr128_f ctr;
50} EVP_AES_GCM_CTX;
51
52typedef struct {
53 union {
54 double align;
55 AES_KEY ks;
56 } ks1, ks2; /* AES key schedules to use */
57 XTS128_CONTEXT xts;
58 void (*stream) (const unsigned char *in,
59 unsigned char *out, size_t length,
60 const AES_KEY *key1, const AES_KEY *key2,
61 const unsigned char iv[16]);
62} EVP_AES_XTS_CTX;
63
64typedef struct {
65 union {
66 double align;
67 AES_KEY ks;
68 } ks; /* AES key schedule to use */
69 int key_set; /* Set if key initialised */
70 int iv_set; /* Set if an iv is set */
71 int tag_set; /* Set if tag is valid */
72 int len_set; /* Set if message length set */
73 int L, M; /* L and M parameters from RFC3610 */
e75c5a79 74 int tls_aad_len; /* TLS AAD length */
0f113f3e
MC		 75 CCM128_CONTEXT ccm;
76 ccm128_f str;
77} EVP_AES_CCM_CTX;
78
5158c763 79#ifndef OPENSSL_NO_OCB
0f113f3e 80typedef struct {
bdc985b1
AP		 81 union {
82 double align;
83 AES_KEY ks;
84 } ksenc; /* AES key schedule to use for encryption */
85 union {
86 double align;
87 AES_KEY ks;
88 } ksdec; /* AES key schedule to use for decryption */
0f113f3e
MC		 89 int key_set; /* Set if key initialised */
90 int iv_set; /* Set if an iv is set */
91 OCB128_CONTEXT ocb;
92 unsigned char *iv; /* Temporary IV store */
93 unsigned char tag[16];
94 unsigned char data_buf[16]; /* Store partial data blocks */
95 unsigned char aad_buf[16]; /* Store partial AAD blocks */
96 int data_buf_len;
97 int aad_buf_len;
98 int ivlen; /* IV length */
99 int taglen;
100} EVP_AES_OCB_CTX;
5158c763 101#endif
e6b336ef 102
5158c763 103#define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
17f121de 104
5158c763 105#ifdef VPAES_ASM
8ca28da0 106int vpaes_set_encrypt_key(const unsigned char *userKey, int bits,
0f113f3e 107 AES_KEY *key);
8ca28da0 108int vpaes_set_decrypt_key(const unsigned char *userKey, int bits,
0f113f3e 109 AES_KEY *key);
8ca28da0
AP		 110
111void vpaes_encrypt(const unsigned char *in, unsigned char *out,
0f113f3e 112 const AES_KEY *key);
8ca28da0 113void vpaes_decrypt(const unsigned char *in, unsigned char *out,
0f113f3e 114 const AES_KEY *key);
8ca28da0
AP		 115
116void vpaes_cbc_encrypt(const unsigned char *in,
0f113f3e
MC		 117 unsigned char *out,
118 size_t length,
119 const AES_KEY *key, unsigned char *ivec, int enc);
5158c763
MC		 120#endif
121#ifdef BSAES_ASM
a75a52a4 122void bsaes_cbc_encrypt(const unsigned char *in, unsigned char *out,
0f113f3e
MC		 123 size_t length, const AES_KEY *key,
124 unsigned char ivec[16], int enc);
993adc05 125void bsaes_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
0f113f3e
MC		 126 size_t len, const AES_KEY *key,
127 const unsigned char ivec[16]);
60d4e99c 128void bsaes_xts_encrypt(const unsigned char *inp, unsigned char *out,
0f113f3e
MC		 129 size_t len, const AES_KEY *key1,
130 const AES_KEY *key2, const unsigned char iv[16]);
60d4e99c 131void bsaes_xts_decrypt(const unsigned char *inp, unsigned char *out,
0f113f3e
MC		 132 size_t len, const AES_KEY *key1,
133 const AES_KEY *key2, const unsigned char iv[16]);
5158c763
MC		 134#endif
135#ifdef AES_CTR_ASM
07904e0c 136void AES_ctr32_encrypt(const unsigned char *in, unsigned char *out,
0f113f3e
MC		 137 size_t blocks, const AES_KEY *key,
138 const unsigned char ivec[AES_BLOCK_SIZE]);
5158c763
MC		 139#endif
140#ifdef AES_XTS_ASM
96cce820 141void AES_xts_encrypt(const unsigned char *inp, unsigned char *out, size_t len,
0f113f3e
MC		 142 const AES_KEY *key1, const AES_KEY *key2,
143 const unsigned char iv[16]);
96cce820 144void AES_xts_decrypt(const unsigned char *inp, unsigned char *out, size_t len,
0f113f3e
MC		 145 const AES_KEY *key1, const AES_KEY *key2,
146 const unsigned char iv[16]);
5158c763 147#endif
8ca28da0 148
03a5e5ae
PS		 149/* increment counter (64-bit int) by 1 */
150static void ctr64_inc(unsigned char *counter)
151{
152 int n = 8;
153 unsigned char c;
154
155 do {
156 --n;
157 c = counter[n];
158 ++c;
159 counter[n] = c;
160 if (c)
161 return;
162 } while (n);
163}
164
6944565b 165#if defined(OPENSSL_CPUID_OBJ) && (defined(__powerpc__) || defined(__ppc__) || defined(_ARCH_PPC))
5158c763
MC		 166# include "ppc_arch.h"
167# ifdef VPAES_ASM
168# define VPAES_CAPABLE (OPENSSL_ppccap_P & PPC_ALTIVEC)
de51e830 169# endif
5158c763
MC		 170# define HWAES_CAPABLE (OPENSSL_ppccap_P & PPC_CRYPTO207)
171# define HWAES_set_encrypt_key aes_p8_set_encrypt_key
172# define HWAES_set_decrypt_key aes_p8_set_decrypt_key
173# define HWAES_encrypt aes_p8_encrypt
174# define HWAES_decrypt aes_p8_decrypt
175# define HWAES_cbc_encrypt aes_p8_cbc_encrypt
176# define HWAES_ctr32_encrypt_blocks aes_p8_ctr32_encrypt_blocks
46f047d7
AP		 177# define HWAES_xts_encrypt aes_p8_xts_encrypt
178# define HWAES_xts_decrypt aes_p8_xts_decrypt
5158c763 179#endif
07f3e4f3 180
5158c763 181#if defined(AES_ASM) && !defined(I386_ONLY) && ( \
0f113f3e
MC		 182 ((defined(__i386) || defined(__i386__) || \
183 defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \
184 defined(__x86_64) || defined(__x86_64__) || \
b1a07c38 185 defined(_M_AMD64) || defined(_M_X64) )
8ca28da0 186
c5f6da54 187extern unsigned int OPENSSL_ia32cap_P[];
8ca28da0 188
5158c763
MC		 189# ifdef VPAES_ASM
190# define VPAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
191# endif
192# ifdef BSAES_ASM
193# define BSAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
194# endif
17f121de
AP		 195/*
196 * AES-NI section
197 */
5158c763 198# define AESNI_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(57-32)))
d1fff483
AP		 199
200int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
0f113f3e 201 AES_KEY *key);
d1fff483 202int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
0f113f3e 203 AES_KEY *key);
d1fff483
AP		 204
205void aesni_encrypt(const unsigned char *in, unsigned char *out,
0f113f3e 206 const AES_KEY *key);
d1fff483 207void aesni_decrypt(const unsigned char *in, unsigned char *out,
0f113f3e 208 const AES_KEY *key);
d1fff483
AP		 209
210void aesni_ecb_encrypt(const unsigned char *in,
0f113f3e
MC		 211 unsigned char *out,
212 size_t length, const AES_KEY *key, int enc);
d1fff483 213void aesni_cbc_encrypt(const unsigned char *in,
0f113f3e
MC		 214 unsigned char *out,
215 size_t length,
216 const AES_KEY *key, unsigned char *ivec, int enc);
d1fff483
AP		 217
218void aesni_ctr32_encrypt_blocks(const unsigned char *in,
0f113f3e
MC		 219 unsigned char *out,
220 size_t blocks,
221 const void *key, const unsigned char *ivec);
17f121de
AP		 222
223void aesni_xts_encrypt(const unsigned char *in,
0f113f3e
MC		 224 unsigned char *out,
225 size_t length,
226 const AES_KEY *key1, const AES_KEY *key2,
227 const unsigned char iv[16]);
17f121de
AP		 228
229void aesni_xts_decrypt(const unsigned char *in,
0f113f3e
MC		 230 unsigned char *out,
231 size_t length,
232 const AES_KEY *key1, const AES_KEY *key2,
233 const unsigned char iv[16]);
234
235void aesni_ccm64_encrypt_blocks(const unsigned char *in,
236 unsigned char *out,
237 size_t blocks,
238 const void *key,
239 const unsigned char ivec[16],
240 unsigned char cmac[16]);
241
242void aesni_ccm64_decrypt_blocks(const unsigned char *in,
243 unsigned char *out,
244 size_t blocks,
245 const void *key,
246 const unsigned char ivec[16],
247 unsigned char cmac[16]);
248
5158c763 249# if defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
4e049c52 250size_t aesni_gcm_encrypt(const unsigned char *in,
0f113f3e
MC		 251 unsigned char *out,
252 size_t len,
253 const void *key, unsigned char ivec[16], u64 *Xi);
5158c763 254# define AES_gcm_encrypt aesni_gcm_encrypt
4e049c52 255size_t aesni_gcm_decrypt(const unsigned char *in,
0f113f3e
MC		 256 unsigned char *out,
257 size_t len,
258 const void *key, unsigned char ivec[16], u64 *Xi);
5158c763 259# define AES_gcm_decrypt aesni_gcm_decrypt
0f113f3e
MC		 260void gcm_ghash_avx(u64 Xi[2], const u128 Htable[16], const u8 *in,
261 size_t len);
5158c763 262# define AES_GCM_ASM(gctx) (gctx->ctr==aesni_ctr32_encrypt_blocks && \
0f113f3e 263 gctx->gcm.ghash==gcm_ghash_avx)
5158c763 264# define AES_GCM_ASM2(gctx) (gctx->gcm.block==(block128_f)aesni_encrypt && \
0f113f3e 265 gctx->gcm.ghash==gcm_ghash_avx)
5158c763
MC		 266# undef AES_GCM_ASM2 /* minor size optimization */
267# endif
4e049c52 268
17f121de 269static int aesni_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 270 const unsigned char *iv, int enc)
271{
272 int ret, mode;
6435f0f6 273 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
0f113f3e 274
6435f0f6 275 mode = EVP_CIPHER_CTX_mode(ctx);
0f113f3e
MC		 276 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
277 && !enc) {
6435f0f6
RL		 278 ret = aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
279 &dat->ks.ks);
0f113f3e
MC		 280 dat->block = (block128_f) aesni_decrypt;
281 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
282 (cbc128_f) aesni_cbc_encrypt : NULL;
283 } else {
6435f0f6
RL		 284 ret = aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
285 &dat->ks.ks);
0f113f3e
MC		 286 dat->block = (block128_f) aesni_encrypt;
287 if (mode == EVP_CIPH_CBC_MODE)
288 dat->stream.cbc = (cbc128_f) aesni_cbc_encrypt;
289 else if (mode == EVP_CIPH_CTR_MODE)
290 dat->stream.ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
291 else
292 dat->stream.cbc = NULL;
293 }
294
295 if (ret < 0) {
296 EVPerr(EVP_F_AESNI_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
297 return 0;
298 }
299
300 return 1;
301}
302
303static int aesni_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
304 const unsigned char *in, size_t len)
d1fff483 305{
6435f0f6
RL		 306 aesni_cbc_encrypt(in, out, len, &EVP_C_DATA(EVP_AES_KEY,ctx)->ks.ks,
307 EVP_CIPHER_CTX_iv_noconst(ctx),
308 EVP_CIPHER_CTX_encrypting(ctx));
d1fff483 309
0f113f3e 310 return 1;
d1fff483
AP		 311}
312
0f113f3e
MC		 313static int aesni_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
314 const unsigned char *in, size_t len)
d1fff483 315{
6435f0f6 316 size_t bl = EVP_CIPHER_CTX_block_size(ctx);
d1fff483 317
0f113f3e
MC		 318 if (len < bl)
319 return 1;
d1fff483 320
6435f0f6
RL		 321 aesni_ecb_encrypt(in, out, len, &EVP_C_DATA(EVP_AES_KEY,ctx)->ks.ks,
322 EVP_CIPHER_CTX_encrypting(ctx));
d1fff483 323
0f113f3e 324 return 1;
d1fff483
AP		 325}
326
5158c763 327# define aesni_ofb_cipher aes_ofb_cipher
0f113f3e
MC		 328static int aesni_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
329 const unsigned char *in, size_t len);
d1fff483 330
5158c763 331# define aesni_cfb_cipher aes_cfb_cipher
0f113f3e
MC		 332static int aesni_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
333 const unsigned char *in, size_t len);
d1fff483 334
5158c763 335# define aesni_cfb8_cipher aes_cfb8_cipher
0f113f3e
MC		 336static int aesni_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
337 const unsigned char *in, size_t len);
d1fff483 338
5158c763 339# define aesni_cfb1_cipher aes_cfb1_cipher
0f113f3e
MC		 340static int aesni_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
341 const unsigned char *in, size_t len);
d1fff483 342
5158c763 343# define aesni_ctr_cipher aes_ctr_cipher
17f121de 344static int aesni_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 345 const unsigned char *in, size_t len);
d1fff483 346
17f121de 347static int aesni_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 348 const unsigned char *iv, int enc)
349{
6435f0f6 350 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
0f113f3e
MC		 351 if (!iv && !key)
352 return 1;
353 if (key) {
6435f0f6
RL		 354 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
355 &gctx->ks.ks);
0f113f3e
MC		 356 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f) aesni_encrypt);
357 gctx->ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
358 /*
359 * If we have an iv can set it directly, otherwise use saved IV.
360 */
361 if (iv == NULL && gctx->iv_set)
362 iv = gctx->iv;
363 if (iv) {
364 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
365 gctx->iv_set = 1;
366 }
367 gctx->key_set = 1;
368 } else {
369 /* If key set use IV, otherwise copy */
370 if (gctx->key_set)
371 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
372 else
373 memcpy(gctx->iv, iv, gctx->ivlen);
374 gctx->iv_set = 1;
375 gctx->iv_gen = 0;
376 }
377 return 1;
378}
379
5158c763 380# define aesni_gcm_cipher aes_gcm_cipher
17f121de 381static int aesni_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 382 const unsigned char *in, size_t len);
17f121de
AP		 383
384static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 385 const unsigned char *iv, int enc)
386{
6435f0f6 387 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
0f113f3e
MC		 388 if (!iv && !key)
389 return 1;
390
391 if (key) {
392 /* key_len is two AES keys */
393 if (enc) {
6435f0f6
RL		 394 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
395 &xctx->ks1.ks);
0f113f3e
MC		 396 xctx->xts.block1 = (block128_f) aesni_encrypt;
397 xctx->stream = aesni_xts_encrypt;
398 } else {
6435f0f6
RL		 399 aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
400 &xctx->ks1.ks);
0f113f3e
MC		 401 xctx->xts.block1 = (block128_f) aesni_decrypt;
402 xctx->stream = aesni_xts_decrypt;
403 }
404
6435f0f6
RL		 405 aesni_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
406 EVP_CIPHER_CTX_key_length(ctx) * 4,
407 &xctx->ks2.ks);
0f113f3e
MC		 408 xctx->xts.block2 = (block128_f) aesni_encrypt;
409
410 xctx->xts.key1 = &xctx->ks1;
411 }
412
413 if (iv) {
414 xctx->xts.key2 = &xctx->ks2;
6435f0f6 415 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
0f113f3e
MC		 416 }
417
418 return 1;
419}
420
5158c763 421# define aesni_xts_cipher aes_xts_cipher
17f121de 422static int aesni_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 423 const unsigned char *in, size_t len);
17f121de
AP		 424
425static int aesni_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 426 const unsigned char *iv, int enc)
427{
6435f0f6 428 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
0f113f3e
MC		 429 if (!iv && !key)
430 return 1;
431 if (key) {
6435f0f6
RL		 432 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
433 &cctx->ks.ks);
0f113f3e
MC		 434 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
435 &cctx->ks, (block128_f) aesni_encrypt);
436 cctx->str = enc ? (ccm128_f) aesni_ccm64_encrypt_blocks :
437 (ccm128_f) aesni_ccm64_decrypt_blocks;
438 cctx->key_set = 1;
439 }
440 if (iv) {
6435f0f6 441 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
0f113f3e
MC		 442 cctx->iv_set = 1;
443 }
444 return 1;
445}
446
5158c763 447# define aesni_ccm_cipher aes_ccm_cipher
17f121de 448static int aesni_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 449 const unsigned char *in, size_t len);
17f121de 450
5158c763 451# ifndef OPENSSL_NO_OCB
bd30091c
AP		 452void aesni_ocb_encrypt(const unsigned char *in, unsigned char *out,
453 size_t blocks, const void *key,
454 size_t start_block_num,
455 unsigned char offset_i[16],
456 const unsigned char L_[][16],
457 unsigned char checksum[16]);
458void aesni_ocb_decrypt(const unsigned char *in, unsigned char *out,
459 size_t blocks, const void *key,
460 size_t start_block_num,
461 unsigned char offset_i[16],
462 const unsigned char L_[][16],
463 unsigned char checksum[16]);
464
e6b336ef 465static int aesni_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 466 const unsigned char *iv, int enc)
467{
6435f0f6 468 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
0f113f3e
MC		 469 if (!iv && !key)
470 return 1;
471 if (key) {
472 do {
473 /*
474 * We set both the encrypt and decrypt key here because decrypt
475 * needs both. We could possibly optimise to remove setting the
476 * decrypt for an encryption operation.
477 */
6435f0f6
RL		 478 aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
479 &octx->ksenc.ks);
480 aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
481 &octx->ksdec.ks);
bdc985b1
AP		 482 if (!CRYPTO_ocb128_init(&octx->ocb,
483 &octx->ksenc.ks, &octx->ksdec.ks,
0f113f3e 484 (block128_f) aesni_encrypt,
bd30091c
AP		 485 (block128_f) aesni_decrypt,
486 enc ? aesni_ocb_encrypt
487 : aesni_ocb_decrypt))
0f113f3e
MC		 488 return 0;
489 }
490 while (0);
491
492 /*
493 * If we have an iv we can set it directly, otherwise use saved IV.
494 */
495 if (iv == NULL && octx->iv_set)
496 iv = octx->iv;
497 if (iv) {
498 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
499 != 1)
500 return 0;
501 octx->iv_set = 1;
502 }
503 octx->key_set = 1;
504 } else {
505 /* If key set use IV, otherwise copy */
506 if (octx->key_set)
507 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
508 else
509 memcpy(octx->iv, iv, octx->ivlen);
510 octx->iv_set = 1;
511 }
512 return 1;
513}
514
5158c763 515# define aesni_ocb_cipher aes_ocb_cipher
e6b336ef 516static int aesni_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 517 const unsigned char *in, size_t len);
5158c763 518# endif /* OPENSSL_NO_OCB */
e6b336ef 519
5158c763 520# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
17f121de 521static const EVP_CIPHER aesni_##keylen##_##mode = { \
0f113f3e
MC		 522 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
523 flags|EVP_CIPH_##MODE##_MODE, \
524 aesni_init_key, \
525 aesni_##mode##_cipher, \
526 NULL, \
527 sizeof(EVP_AES_KEY), \
528 NULL,NULL,NULL,NULL }; \
17f121de 529static const EVP_CIPHER aes_##keylen##_##mode = { \
0f113f3e
MC		 530 nid##_##keylen##_##nmode,blocksize, \
531 keylen/8,ivlen, \
532 flags|EVP_CIPH_##MODE##_MODE, \
533 aes_init_key, \
534 aes_##mode##_cipher, \
535 NULL, \
536 sizeof(EVP_AES_KEY), \
537 NULL,NULL,NULL,NULL }; \
17f121de 538const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
8ca28da0 539{ return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
17f121de 540
5158c763 541# define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
17f121de 542static const EVP_CIPHER aesni_##keylen##_##mode = { \
0f113f3e 543 nid##_##keylen##_##mode,blocksize, \
b1ceb439
TS		 544 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
545 ivlen, \
0f113f3e
MC		 546 flags|EVP_CIPH_##MODE##_MODE, \
547 aesni_##mode##_init_key, \
548 aesni_##mode##_cipher, \
549 aes_##mode##_cleanup, \
550 sizeof(EVP_AES_##MODE##_CTX), \
551 NULL,NULL,aes_##mode##_ctrl,NULL }; \
17f121de 552static const EVP_CIPHER aes_##keylen##_##mode = { \
0f113f3e 553 nid##_##keylen##_##mode,blocksize, \
b1ceb439
TS		 554 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
555 ivlen, \
0f113f3e
MC		 556 flags|EVP_CIPH_##MODE##_MODE, \
557 aes_##mode##_init_key, \
558 aes_##mode##_cipher, \
559 aes_##mode##_cleanup, \
560 sizeof(EVP_AES_##MODE##_CTX), \
561 NULL,NULL,aes_##mode##_ctrl,NULL }; \
17f121de 562const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
8ca28da0 563{ return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
d1fff483 564
5158c763 565#elif defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
c5f6da54 566
5158c763 567# include "sparc_arch.h"
c5f6da54
AP		 568
569extern unsigned int OPENSSL_sparcv9cap_P[];
570
6944565b
AP		 571/*
572 * Initial Fujitsu SPARC64 X support
573 */
574# define HWAES_CAPABLE (OPENSSL_sparcv9cap_P[0] & SPARCV9_FJAESX)
575# define HWAES_set_encrypt_key aes_fx_set_encrypt_key
576# define HWAES_set_decrypt_key aes_fx_set_decrypt_key
577# define HWAES_encrypt aes_fx_encrypt
578# define HWAES_decrypt aes_fx_decrypt
365f95ad
AP		 579# define HWAES_cbc_encrypt aes_fx_cbc_encrypt
580# define HWAES_ctr32_encrypt_blocks aes_fx_ctr32_encrypt_blocks
6944565b 581
5158c763 582# define SPARC_AES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_AES)
c5f6da54 583
0f113f3e
MC		 584void aes_t4_set_encrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
585void aes_t4_set_decrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
586void aes_t4_encrypt(const unsigned char *in, unsigned char *out,
587 const AES_KEY *key);
588void aes_t4_decrypt(const unsigned char *in, unsigned char *out,
589 const AES_KEY *key);
c5f6da54
AP		 590/*
591 * Key-length specific subroutines were chosen for following reason.
592 * Each SPARC T4 core can execute up to 8 threads which share core's
593 * resources. Loading as much key material to registers allows to
594 * minimize references to shared memory interface, as well as amount
595 * of instructions in inner loops [much needed on T4]. But then having
596 * non-key-length specific routines would require conditional branches
597 * either in inner loops or on subroutines' entries. Former is hardly
598 * acceptable, while latter means code size increase to size occupied
0d4fb843 599 * by multiple key-length specific subroutines, so why fight?
c5f6da54 600 */
0f113f3e
MC		 601void aes128_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
602 size_t len, const AES_KEY *key,
603 unsigned char *ivec);
604void aes128_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
605 size_t len, const AES_KEY *key,
606 unsigned char *ivec);
607void aes192_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
608 size_t len, const AES_KEY *key,
609 unsigned char *ivec);
610void aes192_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
611 size_t len, const AES_KEY *key,
612 unsigned char *ivec);
613void aes256_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
614 size_t len, const AES_KEY *key,
615 unsigned char *ivec);
616void aes256_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
617 size_t len, const AES_KEY *key,
618 unsigned char *ivec);
619void aes128_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
620 size_t blocks, const AES_KEY *key,
621 unsigned char *ivec);
622void aes192_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
623 size_t blocks, const AES_KEY *key,
624 unsigned char *ivec);
625void aes256_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
626 size_t blocks, const AES_KEY *key,
627 unsigned char *ivec);
628void aes128_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
629 size_t blocks, const AES_KEY *key1,
630 const AES_KEY *key2, const unsigned char *ivec);
631void aes128_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
632 size_t blocks, const AES_KEY *key1,
633 const AES_KEY *key2, const unsigned char *ivec);
634void aes256_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
635 size_t blocks, const AES_KEY *key1,
636 const AES_KEY *key2, const unsigned char *ivec);
637void aes256_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
638 size_t blocks, const AES_KEY *key1,
639 const AES_KEY *key2, const unsigned char *ivec);
c5f6da54
AP		 640
641static int aes_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 642 const unsigned char *iv, int enc)
643{
644 int ret, mode, bits;
6435f0f6 645 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
0f113f3e 646
6435f0f6
RL		 647 mode = EVP_CIPHER_CTX_mode(ctx);
648 bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
0f113f3e
MC		 649 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
650 && !enc) {
651 ret = 0;
6435f0f6 652 aes_t4_set_decrypt_key(key, bits, &dat->ks.ks);
0f113f3e
MC		 653 dat->block = (block128_f) aes_t4_decrypt;
654 switch (bits) {
655 case 128:
656 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
657 (cbc128_f) aes128_t4_cbc_decrypt : NULL;
658 break;
659 case 192:
660 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
661 (cbc128_f) aes192_t4_cbc_decrypt : NULL;
662 break;
663 case 256:
664 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
665 (cbc128_f) aes256_t4_cbc_decrypt : NULL;
666 break;
667 default:
668 ret = -1;
669 }
670 } else {
671 ret = 0;
6435f0f6 672 aes_t4_set_encrypt_key(key, bits, &dat->ks.ks);
0f113f3e
MC		 673 dat->block = (block128_f) aes_t4_encrypt;
674 switch (bits) {
675 case 128:
676 if (mode == EVP_CIPH_CBC_MODE)
677 dat->stream.cbc = (cbc128_f) aes128_t4_cbc_encrypt;
678 else if (mode == EVP_CIPH_CTR_MODE)
679 dat->stream.ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
680 else
681 dat->stream.cbc = NULL;
682 break;
683 case 192:
684 if (mode == EVP_CIPH_CBC_MODE)
685 dat->stream.cbc = (cbc128_f) aes192_t4_cbc_encrypt;
686 else if (mode == EVP_CIPH_CTR_MODE)
687 dat->stream.ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
688 else
689 dat->stream.cbc = NULL;
690 break;
691 case 256:
692 if (mode == EVP_CIPH_CBC_MODE)
693 dat->stream.cbc = (cbc128_f) aes256_t4_cbc_encrypt;
694 else if (mode == EVP_CIPH_CTR_MODE)
695 dat->stream.ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
696 else
697 dat->stream.cbc = NULL;
698 break;
699 default:
700 ret = -1;
701 }
702 }
703
704 if (ret < 0) {
705 EVPerr(EVP_F_AES_T4_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
706 return 0;
707 }
708
709 return 1;
710}
711
5158c763 712# define aes_t4_cbc_cipher aes_cbc_cipher
0f113f3e
MC		 713static int aes_t4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
714 const unsigned char *in, size_t len);
715
5158c763 716# define aes_t4_ecb_cipher aes_ecb_cipher
0f113f3e
MC		 717static int aes_t4_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
718 const unsigned char *in, size_t len);
719
5158c763 720# define aes_t4_ofb_cipher aes_ofb_cipher
0f113f3e
MC		 721static int aes_t4_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
722 const unsigned char *in, size_t len);
723
5158c763 724# define aes_t4_cfb_cipher aes_cfb_cipher
0f113f3e
MC		 725static int aes_t4_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
726 const unsigned char *in, size_t len);
727
5158c763 728# define aes_t4_cfb8_cipher aes_cfb8_cipher
0f113f3e
MC		 729static int aes_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
730 const unsigned char *in, size_t len);
731
5158c763 732# define aes_t4_cfb1_cipher aes_cfb1_cipher
0f113f3e
MC		 733static int aes_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
734 const unsigned char *in, size_t len);
735
5158c763 736# define aes_t4_ctr_cipher aes_ctr_cipher
c5f6da54 737static int aes_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 738 const unsigned char *in, size_t len);
c5f6da54
AP		 739
740static int aes_t4_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 741 const unsigned char *iv, int enc)
742{
6435f0f6 743 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
0f113f3e
MC		 744 if (!iv && !key)
745 return 1;
746 if (key) {
6435f0f6 747 int bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
0f113f3e
MC		 748 aes_t4_set_encrypt_key(key, bits, &gctx->ks.ks);
749 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
750 (block128_f) aes_t4_encrypt);
751 switch (bits) {
752 case 128:
753 gctx->ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
754 break;
755 case 192:
756 gctx->ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
757 break;
758 case 256:
759 gctx->ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
760 break;
761 default:
762 return 0;
763 }
764 /*
765 * If we have an iv can set it directly, otherwise use saved IV.
766 */
767 if (iv == NULL && gctx->iv_set)
768 iv = gctx->iv;
769 if (iv) {
770 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
771 gctx->iv_set = 1;
772 }
773 gctx->key_set = 1;
774 } else {
775 /* If key set use IV, otherwise copy */
776 if (gctx->key_set)
777 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
778 else
779 memcpy(gctx->iv, iv, gctx->ivlen);
780 gctx->iv_set = 1;
781 gctx->iv_gen = 0;
782 }
783 return 1;
784}
785
5158c763 786# define aes_t4_gcm_cipher aes_gcm_cipher
c5f6da54 787static int aes_t4_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 788 const unsigned char *in, size_t len);
c5f6da54
AP		 789
790static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 791 const unsigned char *iv, int enc)
792{
6435f0f6 793 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
0f113f3e
MC		 794 if (!iv && !key)
795 return 1;
796
797 if (key) {
6435f0f6 798 int bits = EVP_CIPHER_CTX_key_length(ctx) * 4;
0f113f3e
MC		 799 xctx->stream = NULL;
800 /* key_len is two AES keys */
801 if (enc) {
802 aes_t4_set_encrypt_key(key, bits, &xctx->ks1.ks);
803 xctx->xts.block1 = (block128_f) aes_t4_encrypt;
804 switch (bits) {
805 case 128:
806 xctx->stream = aes128_t4_xts_encrypt;
807 break;
0f113f3e
MC		 808 case 256:
809 xctx->stream = aes256_t4_xts_encrypt;
810 break;
811 default:
812 return 0;
813 }
814 } else {
6435f0f6
RL		 815 aes_t4_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
816 &xctx->ks1.ks);
0f113f3e
MC		 817 xctx->xts.block1 = (block128_f) aes_t4_decrypt;
818 switch (bits) {
819 case 128:
820 xctx->stream = aes128_t4_xts_decrypt;
821 break;
0f113f3e
MC		 822 case 256:
823 xctx->stream = aes256_t4_xts_decrypt;
824 break;
825 default:
826 return 0;
827 }
828 }
829
6435f0f6
RL		 830 aes_t4_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
831 EVP_CIPHER_CTX_key_length(ctx) * 4,
832 &xctx->ks2.ks);
0f113f3e
MC		 833 xctx->xts.block2 = (block128_f) aes_t4_encrypt;
834
835 xctx->xts.key1 = &xctx->ks1;
836 }
837
838 if (iv) {
839 xctx->xts.key2 = &xctx->ks2;
6435f0f6 840 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
0f113f3e
MC		 841 }
842
843 return 1;
844}
845
5158c763 846# define aes_t4_xts_cipher aes_xts_cipher
c5f6da54 847static int aes_t4_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 848 const unsigned char *in, size_t len);
c5f6da54
AP		 849
850static int aes_t4_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 851 const unsigned char *iv, int enc)
852{
6435f0f6 853 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
0f113f3e
MC		 854 if (!iv && !key)
855 return 1;
856 if (key) {
6435f0f6 857 int bits = EVP_CIPHER_CTX_key_length(ctx) * 8;
0f113f3e
MC		 858 aes_t4_set_encrypt_key(key, bits, &cctx->ks.ks);
859 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
860 &cctx->ks, (block128_f) aes_t4_encrypt);
bdc985b1 861 cctx->str = NULL;
0f113f3e
MC		 862 cctx->key_set = 1;
863 }
864 if (iv) {
6435f0f6 865 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
0f113f3e
MC		 866 cctx->iv_set = 1;
867 }
868 return 1;
869}
870
5158c763 871# define aes_t4_ccm_cipher aes_ccm_cipher
c5f6da54 872static int aes_t4_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 873 const unsigned char *in, size_t len);
c5f6da54 874
5158c763 875# ifndef OPENSSL_NO_OCB
e6b336ef 876static int aes_t4_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 877 const unsigned char *iv, int enc)
878{
6435f0f6 879 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
0f113f3e
MC		 880 if (!iv && !key)
881 return 1;
882 if (key) {
883 do {
884 /*
885 * We set both the encrypt and decrypt key here because decrypt
886 * needs both. We could possibly optimise to remove setting the
887 * decrypt for an encryption operation.
888 */
6435f0f6
RL		 889 aes_t4_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
890 &octx->ksenc.ks);
891 aes_t4_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
892 &octx->ksdec.ks);
bdc985b1
AP		 893 if (!CRYPTO_ocb128_init(&octx->ocb,
894 &octx->ksenc.ks, &octx->ksdec.ks,
0f113f3e 895 (block128_f) aes_t4_encrypt,
02dc0b82
AP		 896 (block128_f) aes_t4_decrypt,
897 NULL))
0f113f3e
MC		 898 return 0;
899 }
900 while (0);
901
902 /*
903 * If we have an iv we can set it directly, otherwise use saved IV.
904 */
905 if (iv == NULL && octx->iv_set)
906 iv = octx->iv;
907 if (iv) {
908 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
909 != 1)
910 return 0;
911 octx->iv_set = 1;
912 }
913 octx->key_set = 1;
914 } else {
915 /* If key set use IV, otherwise copy */
916 if (octx->key_set)
917 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
918 else
919 memcpy(octx->iv, iv, octx->ivlen);
920 octx->iv_set = 1;
921 }
922 return 1;
923}
924
5158c763 925# define aes_t4_ocb_cipher aes_ocb_cipher
e6b336ef 926static int aes_t4_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e 927 const unsigned char *in, size_t len);
5158c763 928# endif /* OPENSSL_NO_OCB */
e6b336ef 929
87d06aed
MC		 930# ifndef OPENSSL_NO_SIV
931# define aes_t4_siv_init_key aes_siv_init_key
932# define aes_t4_siv_cipher aes_siv_cipher
933# endif /* OPENSSL_NO_SIV */
934
5158c763 935# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
c5f6da54 936static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
0f113f3e
MC		 937 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
938 flags|EVP_CIPH_##MODE##_MODE, \
939 aes_t4_init_key, \
940 aes_t4_##mode##_cipher, \
941 NULL, \
942 sizeof(EVP_AES_KEY), \
943 NULL,NULL,NULL,NULL }; \
c5f6da54 944static const EVP_CIPHER aes_##keylen##_##mode = { \
0f113f3e
MC		 945 nid##_##keylen##_##nmode,blocksize, \
946 keylen/8,ivlen, \
947 flags|EVP_CIPH_##MODE##_MODE, \
948 aes_init_key, \
949 aes_##mode##_cipher, \
950 NULL, \
951 sizeof(EVP_AES_KEY), \
952 NULL,NULL,NULL,NULL }; \
c5f6da54
AP		 953const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
954{ return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
955
5158c763 956# define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
c5f6da54 957static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
0f113f3e 958 nid##_##keylen##_##mode,blocksize, \
b1ceb439
TS		 959 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
960 ivlen, \
0f113f3e
MC		 961 flags|EVP_CIPH_##MODE##_MODE, \
962 aes_t4_##mode##_init_key, \
963 aes_t4_##mode##_cipher, \
964 aes_##mode##_cleanup, \
965 sizeof(EVP_AES_##MODE##_CTX), \
966 NULL,NULL,aes_##mode##_ctrl,NULL }; \
c5f6da54 967static const EVP_CIPHER aes_##keylen##_##mode = { \
0f113f3e 968 nid##_##keylen##_##mode,blocksize, \
b1ceb439
TS		 969 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
970 ivlen, \
0f113f3e
MC		 971 flags|EVP_CIPH_##MODE##_MODE, \
972 aes_##mode##_init_key, \
973 aes_##mode##_cipher, \
974 aes_##mode##_cleanup, \
975 sizeof(EVP_AES_##MODE##_CTX), \
976 NULL,NULL,aes_##mode##_ctrl,NULL }; \
c5f6da54
AP		 977const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
978{ return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
979
96530eea
PS		 980#elif defined(OPENSSL_CPUID_OBJ) && defined(__s390__)
981/*
982 * IBM S390X support
983 */
984# include "s390x_arch.h"
985
55bd169f
PS		 986typedef struct {
987 union {
988 double align;
989 /*-
990 * KM-AES parameter block - begin
991 * (see z/Architecture Principles of Operation >= SA22-7832-06)
992 */
993 struct {
994 unsigned char k[32];
995 } param;
996 /* KM-AES parameter block - end */
997 } km;
998 unsigned int fc;
999} S390X_AES_ECB_CTX;
1000
dacd2a87
PS		 1001typedef struct {
1002 union {
1003 double align;
1004 /*-
1005 * KMO-AES parameter block - begin
1006 * (see z/Architecture Principles of Operation >= SA22-7832-08)
1007 */
1008 struct {
1009 unsigned char cv[16];
1010 unsigned char k[32];
1011 } param;
1012 /* KMO-AES parameter block - end */
1013 } kmo;
1014 unsigned int fc;
1015
1016 int res;
1017} S390X_AES_OFB_CTX;
1018
74d38a86
PS		 1019typedef struct {
1020 union {
1021 double align;
1022 /*-
1023 * KMF-AES parameter block - begin
1024 * (see z/Architecture Principles of Operation >= SA22-7832-08)
1025 */
1026 struct {
1027 unsigned char cv[16];
1028 unsigned char k[32];
1029 } param;
1030 /* KMF-AES parameter block - end */
1031 } kmf;
1032 unsigned int fc;
1033
1034 int res;
1035} S390X_AES_CFB_CTX;
1036
96530eea
PS		 1037typedef struct {
1038 union {
1039 double align;
1040 /*-
5d2a6f4b
PS		 1041 * KMA-GCM-AES parameter block - begin
1042 * (see z/Architecture Principles of Operation >= SA22-7832-11)
96530eea
PS		 1043 */
1044 struct {
1045 unsigned char reserved[12];
1046 union {
1047 unsigned int w;
1048 unsigned char b[4];
1049 } cv;
1050 union {
1051 unsigned long long g[2];
1052 unsigned char b[16];
1053 } t;
1054 unsigned char h[16];
1055 unsigned long long taadl;
1056 unsigned long long tpcl;
1057 union {
1058 unsigned long long g[2];
1059 unsigned int w[4];
1060 } j0;
1061 unsigned char k[32];
1062 } param;
5d2a6f4b 1063 /* KMA-GCM-AES parameter block - end */
96530eea
PS		 1064 } kma;
1065 unsigned int fc;
1066 int key_set;
1067
1068 unsigned char *iv;
1069 int ivlen;
1070 int iv_set;
1071 int iv_gen;
1072
1073 int taglen;
1074
1075 unsigned char ares[16];
1076 unsigned char mres[16];
1077 unsigned char kres[16];
1078 int areslen;
1079 int mreslen;
1080 int kreslen;
1081
1082 int tls_aad_len;
d6b34570 1083 uint64_t tls_enc_records; /* Number of TLS records encrypted */
96530eea
PS		 1084} S390X_AES_GCM_CTX;
1085
39f5b069
PS		 1086typedef struct {
1087 union {
1088 double align;
1089 /*-
1090 * Padding is chosen so that ccm.kmac_param.k overlaps with key.k and
1091 * ccm.fc with key.k.rounds. Remember that on s390x, an AES_KEY's
1092 * rounds field is used to store the function code and that the key
1093 * schedule is not stored (if aes hardware support is detected).
1094 */
1095 struct {
1096 unsigned char pad[16];
1097 AES_KEY k;
1098 } key;
1099
1100 struct {
1101 /*-
1102 * KMAC-AES parameter block - begin
1103 * (see z/Architecture Principles of Operation >= SA22-7832-08)
1104 */
1105 struct {
1106 union {
1107 unsigned long long g[2];
1108 unsigned char b[16];
1109 } icv;
1110 unsigned char k[32];
1111 } kmac_param;
1112 /* KMAC-AES paramater block - end */
1113
1114 union {
1115 unsigned long long g[2];
1116 unsigned char b[16];
1117 } nonce;
1118 union {
1119 unsigned long long g[2];
1120 unsigned char b[16];
1121 } buf;
1122
1123 unsigned long long blocks;
1124 int l;
1125 int m;
1126 int tls_aad_len;
1127 int iv_set;
1128 int tag_set;
1129 int len_set;
1130 int key_set;
1131
1132 unsigned char pad[140];
1133 unsigned int fc;
1134 } ccm;
1135 } aes;
1136} S390X_AES_CCM_CTX;
1137
55bd169f
PS		 1138/* Convert key size to function code: [16,24,32] -> [18,19,20]. */
1139# define S390X_AES_FC(keylen) (S390X_AES_128 + ((((keylen) << 3) - 128) >> 6))
1140
1141/* Most modes of operation need km for partial block processing. */
1142# define S390X_aes_128_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
1143 S390X_CAPBIT(S390X_AES_128))
1144# define S390X_aes_192_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
1145 S390X_CAPBIT(S390X_AES_192))
1146# define S390X_aes_256_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
1147 S390X_CAPBIT(S390X_AES_256))
96530eea
PS		 1148
1149# define s390x_aes_init_key aes_init_key
1150static int s390x_aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
1151 const unsigned char *iv, int enc);
1152
1153# define S390X_aes_128_cbc_CAPABLE 1 /* checked by callee */
1154# define S390X_aes_192_cbc_CAPABLE 1
1155# define S390X_aes_256_cbc_CAPABLE 1
55bd169f
PS		 1156# define S390X_AES_CBC_CTX EVP_AES_KEY
1157
1158# define s390x_aes_cbc_init_key aes_init_key
96530eea
PS		 1159
1160# define s390x_aes_cbc_cipher aes_cbc_cipher
1161static int s390x_aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1162 const unsigned char *in, size_t len);
1163
55bd169f
PS		 1164# define S390X_aes_128_ecb_CAPABLE S390X_aes_128_CAPABLE
1165# define S390X_aes_192_ecb_CAPABLE S390X_aes_192_CAPABLE
1166# define S390X_aes_256_ecb_CAPABLE S390X_aes_256_CAPABLE
1167
1168static int s390x_aes_ecb_init_key(EVP_CIPHER_CTX *ctx,
1169 const unsigned char *key,
1170 const unsigned char *iv, int enc)
1171{
1172 S390X_AES_ECB_CTX *cctx = EVP_C_DATA(S390X_AES_ECB_CTX, ctx);
1173 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1174
1175 cctx->fc = S390X_AES_FC(keylen);
1176 if (!enc)
1177 cctx->fc |= S390X_DECRYPT;
1178
1179 memcpy(cctx->km.param.k, key, keylen);
1180 return 1;
1181}
96530eea 1182
96530eea 1183static int s390x_aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
55bd169f
PS		 1184 const unsigned char *in, size_t len)
1185{
1186 S390X_AES_ECB_CTX *cctx = EVP_C_DATA(S390X_AES_ECB_CTX, ctx);
1187
1188 s390x_km(in, len, out, cctx->fc, &cctx->km.param);
1189 return 1;
1190}
96530eea 1191
dacd2a87
PS		 1192# define S390X_aes_128_ofb_CAPABLE (S390X_aes_128_CAPABLE && \
1193 (OPENSSL_s390xcap_P.kmo[0] & \
1194 S390X_CAPBIT(S390X_AES_128)))
1195# define S390X_aes_192_ofb_CAPABLE (S390X_aes_192_CAPABLE && \
1196 (OPENSSL_s390xcap_P.kmo[0] & \
1197 S390X_CAPBIT(S390X_AES_192)))
1198# define S390X_aes_256_ofb_CAPABLE (S390X_aes_256_CAPABLE && \
1199 (OPENSSL_s390xcap_P.kmo[0] & \
1200 S390X_CAPBIT(S390X_AES_256)))
1201
1202static int s390x_aes_ofb_init_key(EVP_CIPHER_CTX *ctx,
1203 const unsigned char *key,
1204 const unsigned char *ivec, int enc)
1205{
1206 S390X_AES_OFB_CTX *cctx = EVP_C_DATA(S390X_AES_OFB_CTX, ctx);
1207 const unsigned char *iv = EVP_CIPHER_CTX_original_iv(ctx);
1208 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1209 const int ivlen = EVP_CIPHER_CTX_iv_length(ctx);
55bd169f 1210
dacd2a87
PS		 1211 memcpy(cctx->kmo.param.cv, iv, ivlen);
1212 memcpy(cctx->kmo.param.k, key, keylen);
1213 cctx->fc = S390X_AES_FC(keylen);
1214 cctx->res = 0;
1215 return 1;
1216}
96530eea 1217
96530eea 1218static int s390x_aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
dacd2a87
PS		 1219 const unsigned char *in, size_t len)
1220{
1221 S390X_AES_OFB_CTX *cctx = EVP_C_DATA(S390X_AES_OFB_CTX, ctx);
1222 int n = cctx->res;
1223 int rem;
1224
1225 while (n && len) {
1226 *out = *in ^ cctx->kmo.param.cv[n];
1227 n = (n + 1) & 0xf;
1228 --len;
1229 ++in;
1230 ++out;
1231 }
1232
1233 rem = len & 0xf;
1234
1235 len &= ~(size_t)0xf;
1236 if (len) {
1237 s390x_kmo(in, len, out, cctx->fc, &cctx->kmo.param);
1238
1239 out += len;
1240 in += len;
1241 }
1242
1243 if (rem) {
1244 s390x_km(cctx->kmo.param.cv, 16, cctx->kmo.param.cv, cctx->fc,
1245 cctx->kmo.param.k);
1246
1247 while (rem--) {
1248 out[n] = in[n] ^ cctx->kmo.param.cv[n];
1249 ++n;
1250 }
1251 }
1252
1253 cctx->res = n;
1254 return 1;
1255}
96530eea 1256
74d38a86
PS		 1257# define S390X_aes_128_cfb_CAPABLE (S390X_aes_128_CAPABLE && \
1258 (OPENSSL_s390xcap_P.kmf[0] & \
1259 S390X_CAPBIT(S390X_AES_128)))
1260# define S390X_aes_192_cfb_CAPABLE (S390X_aes_192_CAPABLE && \
1261 (OPENSSL_s390xcap_P.kmf[0] & \
1262 S390X_CAPBIT(S390X_AES_192)))
1263# define S390X_aes_256_cfb_CAPABLE (S390X_aes_256_CAPABLE && \
1264 (OPENSSL_s390xcap_P.kmf[0] & \
1265 S390X_CAPBIT(S390X_AES_256)))
1266
1267static int s390x_aes_cfb_init_key(EVP_CIPHER_CTX *ctx,
1268 const unsigned char *key,
1269 const unsigned char *ivec, int enc)
1270{
1271 S390X_AES_CFB_CTX *cctx = EVP_C_DATA(S390X_AES_CFB_CTX, ctx);
1272 const unsigned char *iv = EVP_CIPHER_CTX_original_iv(ctx);
1273 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1274 const int ivlen = EVP_CIPHER_CTX_iv_length(ctx);
1275
1276 cctx->fc = S390X_AES_FC(keylen);
1277 cctx->fc |= 16 << 24; /* 16 bytes cipher feedback */
1278 if (!enc)
1279 cctx->fc |= S390X_DECRYPT;
55bd169f 1280
74d38a86
PS		 1281 cctx->res = 0;
1282 memcpy(cctx->kmf.param.cv, iv, ivlen);
1283 memcpy(cctx->kmf.param.k, key, keylen);
1284 return 1;
1285}
96530eea 1286
96530eea 1287static int s390x_aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
74d38a86
PS		 1288 const unsigned char *in, size_t len)
1289{
1290 S390X_AES_CFB_CTX *cctx = EVP_C_DATA(S390X_AES_CFB_CTX, ctx);
1291 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1292 const int enc = EVP_CIPHER_CTX_encrypting(ctx);
1293 int n = cctx->res;
1294 int rem;
1295 unsigned char tmp;
1296
1297 while (n && len) {
1298 tmp = *in;
1299 *out = cctx->kmf.param.cv[n] ^ tmp;
1300 cctx->kmf.param.cv[n] = enc ? *out : tmp;
1301 n = (n + 1) & 0xf;
1302 --len;
1303 ++in;
1304 ++out;
1305 }
1306
1307 rem = len & 0xf;
1308
1309 len &= ~(size_t)0xf;
1310 if (len) {
1311 s390x_kmf(in, len, out, cctx->fc, &cctx->kmf.param);
1312
1313 out += len;
1314 in += len;
1315 }
1316
1317 if (rem) {
1318 s390x_km(cctx->kmf.param.cv, 16, cctx->kmf.param.cv,
1319 S390X_AES_FC(keylen), cctx->kmf.param.k);
1320
1321 while (rem--) {
1322 tmp = in[n];
1323 out[n] = cctx->kmf.param.cv[n] ^ tmp;
1324 cctx->kmf.param.cv[n] = enc ? out[n] : tmp;
1325 ++n;
1326 }
1327 }
96530eea 1328
74d38a86
PS		 1329 cctx->res = n;
1330 return 1;
1331}
1332
1333# define S390X_aes_128_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
1334 S390X_CAPBIT(S390X_AES_128))
1335# define S390X_aes_192_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
1336 S390X_CAPBIT(S390X_AES_192))
1337# define S390X_aes_256_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
1338 S390X_CAPBIT(S390X_AES_256))
1339
1340static int s390x_aes_cfb8_init_key(EVP_CIPHER_CTX *ctx,
1341 const unsigned char *key,
1342 const unsigned char *ivec, int enc)
1343{
1344 S390X_AES_CFB_CTX *cctx = EVP_C_DATA(S390X_AES_CFB_CTX, ctx);
1345 const unsigned char *iv = EVP_CIPHER_CTX_original_iv(ctx);
1346 const int keylen = EVP_CIPHER_CTX_key_length(ctx);
1347 const int ivlen = EVP_CIPHER_CTX_iv_length(ctx);
1348
1349 cctx->fc = S390X_AES_FC(keylen);
1350 cctx->fc |= 1 << 24; /* 1 byte cipher feedback */
1351 if (!enc)
1352 cctx->fc |= S390X_DECRYPT;
96530eea 1353
74d38a86
PS		 1354 memcpy(cctx->kmf.param.cv, iv, ivlen);
1355 memcpy(cctx->kmf.param.k, key, keylen);
1356 return 1;
1357}
55bd169f 1358
96530eea 1359static int s390x_aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
74d38a86
PS		 1360 const unsigned char *in, size_t len)
1361{
1362 S390X_AES_CFB_CTX *cctx = EVP_C_DATA(S390X_AES_CFB_CTX, ctx);
1363
1364 s390x_kmf(in, len, out, cctx->fc, &cctx->kmf.param);
1365 return 1;
1366}
96530eea
PS		 1367
1368# define S390X_aes_128_cfb1_CAPABLE 0
1369# define S390X_aes_192_cfb1_CAPABLE 0
1370# define S390X_aes_256_cfb1_CAPABLE 0
1371
55bd169f
PS		 1372# define s390x_aes_cfb1_init_key aes_init_key
1373
96530eea
PS		 1374# define s390x_aes_cfb1_cipher aes_cfb1_cipher
1375static int s390x_aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1376 const unsigned char *in, size_t len);
1377
1378# define S390X_aes_128_ctr_CAPABLE 1 /* checked by callee */
1379# define S390X_aes_192_ctr_CAPABLE 1
1380# define S390X_aes_256_ctr_CAPABLE 1
55bd169f
PS		 1381# define S390X_AES_CTR_CTX EVP_AES_KEY
1382
1383# define s390x_aes_ctr_init_key aes_init_key
96530eea
PS		 1384
1385# define s390x_aes_ctr_cipher aes_ctr_cipher
1386static int s390x_aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1387 const unsigned char *in, size_t len);
1388
1389# define S390X_aes_128_gcm_CAPABLE (S390X_aes_128_CAPABLE && \
1390 (OPENSSL_s390xcap_P.kma[0] & \
1391 S390X_CAPBIT(S390X_AES_128)))
1392# define S390X_aes_192_gcm_CAPABLE (S390X_aes_192_CAPABLE && \
1393 (OPENSSL_s390xcap_P.kma[0] & \
1394 S390X_CAPBIT(S390X_AES_192)))
1395# define S390X_aes_256_gcm_CAPABLE (S390X_aes_256_CAPABLE && \
1396 (OPENSSL_s390xcap_P.kma[0] & \
1397 S390X_CAPBIT(S390X_AES_256)))
1398
1399/* iv + padding length for iv lenghts != 12 */
1400# define S390X_gcm_ivpadlen(i) ((((i) + 15) >> 4 << 4) + 16)
1401
5d2a6f4b
PS		 1402/*-
1403 * Process additional authenticated data. Returns 0 on success. Code is
1404 * big-endian.
1405 */
96530eea
PS		 1406static int s390x_aes_gcm_aad(S390X_AES_GCM_CTX *ctx, const unsigned char *aad,
1407 size_t len)
1408{
1409 unsigned long long alen;
1410 int n, rem;
1411
1412 if (ctx->kma.param.tpcl)
1413 return -2;
1414
1415 alen = ctx->kma.param.taadl + len;
1416 if (alen > (U64(1) << 61) || (sizeof(len) == 8 && alen < len))
1417 return -1;
1418 ctx->kma.param.taadl = alen;
1419
1420 n = ctx->areslen;
1421 if (n) {
1422 while (n && len) {
1423 ctx->ares[n] = *aad;
1424 n = (n + 1) & 0xf;
1425 ++aad;
1426 --len;
1427 }
1428 /* ctx->ares contains a complete block if offset has wrapped around */
1429 if (!n) {
1430 s390x_kma(ctx->ares, 16, NULL, 0, NULL, ctx->fc, &ctx->kma.param);
1431 ctx->fc |= S390X_KMA_HS;
1432 }
1433 ctx->areslen = n;
1434 }
1435
1436 rem = len & 0xf;
1437
25868993 1438 len &= ~(size_t)0xf;
96530eea
PS		 1439 if (len) {
1440 s390x_kma(aad, len, NULL, 0, NULL, ctx->fc, &ctx->kma.param);
1441 aad += len;
1442 ctx->fc |= S390X_KMA_HS;
1443 }
1444
1445 if (rem) {
1446 ctx->areslen = rem;
1447
1448 do {
1449 --rem;
1450 ctx->ares[rem] = aad[rem];
1451 } while (rem);
1452 }
1453 return 0;
1454}
1455
5d2a6f4b
PS		 1456/*-
1457 * En/de-crypt plain/cipher-text and authenticate ciphertext. Returns 0 for
1458 * success. Code is big-endian.
1459 */
96530eea
PS		 1460static int s390x_aes_gcm(S390X_AES_GCM_CTX *ctx, const unsigned char *in,
1461 unsigned char *out, size_t len)
1462{
1463 const unsigned char *inptr;
1464 unsigned long long mlen;
1465 union {
1466 unsigned int w[4];
1467 unsigned char b[16];
1468 } buf;
1469 size_t inlen;
1470 int n, rem, i;
1471
1472 mlen = ctx->kma.param.tpcl + len;
1473 if (mlen > ((U64(1) << 36) - 32) || (sizeof(len) == 8 && mlen < len))
1474 return -1;
1475 ctx->kma.param.tpcl = mlen;
1476
1477 n = ctx->mreslen;
1478 if (n) {
1479 inptr = in;
1480 inlen = len;
1481 while (n && inlen) {
1482 ctx->mres[n] = *inptr;
1483 n = (n + 1) & 0xf;
1484 ++inptr;
1485 --inlen;
1486 }
1487 /* ctx->mres contains a complete block if offset has wrapped around */
1488 if (!n) {
1489 s390x_kma(ctx->ares, ctx->areslen, ctx->mres, 16, buf.b,
1490 ctx->fc | S390X_KMA_LAAD, &ctx->kma.param);
1491 ctx->fc |= S390X_KMA_HS;
1492 ctx->areslen = 0;
1493
1494 /* previous call already encrypted/decrypted its remainder,
1495 * see comment below */
1496 n = ctx->mreslen;
1497 while (n) {
1498 *out = buf.b[n];
1499 n = (n + 1) & 0xf;
1500 ++out;
1501 ++in;
1502 --len;
1503 }
1504 ctx->mreslen = 0;
1505 }
1506 }
1507
1508 rem = len & 0xf;
1509
25868993 1510 len &= ~(size_t)0xf;
96530eea
PS		 1511 if (len) {
1512 s390x_kma(ctx->ares, ctx->areslen, in, len, out,
1513 ctx->fc | S390X_KMA_LAAD, &ctx->kma.param);
1514 in += len;
1515 out += len;
1516 ctx->fc |= S390X_KMA_HS;
1517 ctx->areslen = 0;
1518 }
1519
1520 /*-
1521 * If there is a remainder, it has to be saved such that it can be
1522 * processed by kma later. However, we also have to do the for-now
1523 * unauthenticated encryption/decryption part here and now...
1524 */
1525 if (rem) {
1526 if (!ctx->mreslen) {
1527 buf.w[0] = ctx->kma.param.j0.w[0];
1528 buf.w[1] = ctx->kma.param.j0.w[1];
1529 buf.w[2] = ctx->kma.param.j0.w[2];
1530 buf.w[3] = ctx->kma.param.cv.w + 1;
1531 s390x_km(buf.b, 16, ctx->kres, ctx->fc & 0x1f, &ctx->kma.param.k);
1532 }
1533
1534 n = ctx->mreslen;
1535 for (i = 0; i < rem; i++) {
1536 ctx->mres[n + i] = in[i];
1537 out[i] = in[i] ^ ctx->kres[n + i];
1538 }
1539
1540 ctx->mreslen += rem;
1541 }
1542 return 0;
1543}
1544
5d2a6f4b
PS		 1545/*-
1546 * Initialize context structure. Code is big-endian.
1547 */
96530eea
PS		 1548static void s390x_aes_gcm_setiv(S390X_AES_GCM_CTX *ctx,
1549 const unsigned char *iv)
1550{
1551 ctx->kma.param.t.g[0] = 0;
1552 ctx->kma.param.t.g[1] = 0;
1553 ctx->kma.param.tpcl = 0;
1554 ctx->kma.param.taadl = 0;
1555 ctx->mreslen = 0;
1556 ctx->areslen = 0;
1557 ctx->kreslen = 0;
1558
1559 if (ctx->ivlen == 12) {
1560 memcpy(&ctx->kma.param.j0, iv, ctx->ivlen);
1561 ctx->kma.param.j0.w[3] = 1;
1562 ctx->kma.param.cv.w = 1;
1563 } else {
1564 /* ctx->iv has the right size and is already padded. */
1565 memcpy(ctx->iv, iv, ctx->ivlen);
1566 s390x_kma(ctx->iv, S390X_gcm_ivpadlen(ctx->ivlen), NULL, 0, NULL,
1567 ctx->fc, &ctx->kma.param);
1568 ctx->fc |= S390X_KMA_HS;
1569
1570 ctx->kma.param.j0.g[0] = ctx->kma.param.t.g[0];
1571 ctx->kma.param.j0.g[1] = ctx->kma.param.t.g[1];
1572 ctx->kma.param.cv.w = ctx->kma.param.j0.w[3];
1573 ctx->kma.param.t.g[0] = 0;
1574 ctx->kma.param.t.g[1] = 0;
1575 }
1576}
1577
5d2a6f4b
PS		 1578/*-
1579 * Performs various operations on the context structure depending on control
1580 * type. Returns 1 for success, 0 for failure and -1 for unknown control type.
1581 * Code is big-endian.
1582 */
96530eea
PS		 1583static int s390x_aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
1584{
1585 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, c);
1586 S390X_AES_GCM_CTX *gctx_out;
1587 EVP_CIPHER_CTX *out;
1588 unsigned char *buf, *iv;
1589 int ivlen, enc, len;
1590
1591 switch (type) {
1592 case EVP_CTRL_INIT:
1593 ivlen = EVP_CIPHER_CTX_iv_length(c);
1594 iv = EVP_CIPHER_CTX_iv_noconst(c);
1595 gctx->key_set = 0;
1596 gctx->iv_set = 0;
1597 gctx->ivlen = ivlen;
1598 gctx->iv = iv;
1599 gctx->taglen = -1;
1600 gctx->iv_gen = 0;
1601 gctx->tls_aad_len = -1;
1602 return 1;
1603
1604 case EVP_CTRL_AEAD_SET_IVLEN:
1605 if (arg <= 0)
1606 return 0;
1607
1608 if (arg != 12) {
1609 iv = EVP_CIPHER_CTX_iv_noconst(c);
1610 len = S390X_gcm_ivpadlen(arg);
1611
1612 /* Allocate memory for iv if needed. */
1613 if (gctx->ivlen == 12 || len > S390X_gcm_ivpadlen(gctx->ivlen)) {
1614 if (gctx->iv != iv)
1615 OPENSSL_free(gctx->iv);
1616
cdb10bae
RS		 1617 if ((gctx->iv = OPENSSL_malloc(len)) == NULL) {
1618 EVPerr(EVP_F_S390X_AES_GCM_CTRL, ERR_R_MALLOC_FAILURE);
96530eea 1619 return 0;
cdb10bae 1620 }
96530eea
PS		 1621 }
1622 /* Add padding. */
1623 memset(gctx->iv + arg, 0, len - arg - 8);
1624 *((unsigned long long *)(gctx->iv + len - 8)) = arg << 3;
1625 }
1626 gctx->ivlen = arg;
1627 return 1;
1628
1629 case EVP_CTRL_AEAD_SET_TAG:
1630 buf = EVP_CIPHER_CTX_buf_noconst(c);
1631 enc = EVP_CIPHER_CTX_encrypting(c);
1632 if (arg <= 0 || arg > 16 || enc)
1633 return 0;
1634
1635 memcpy(buf, ptr, arg);
1636 gctx->taglen = arg;
1637 return 1;
1638
1639 case EVP_CTRL_AEAD_GET_TAG:
1640 enc = EVP_CIPHER_CTX_encrypting(c);
1641 if (arg <= 0 || arg > 16 || !enc || gctx->taglen < 0)
1642 return 0;
1643
1644 memcpy(ptr, gctx->kma.param.t.b, arg);
1645 return 1;
1646
1647 case EVP_CTRL_GCM_SET_IV_FIXED:
1648 /* Special case: -1 length restores whole iv */
1649 if (arg == -1) {
1650 memcpy(gctx->iv, ptr, gctx->ivlen);
1651 gctx->iv_gen = 1;
1652 return 1;
1653 }
1654 /*
1655 * Fixed field must be at least 4 bytes and invocation field at least
1656 * 8.
1657 */
1658 if ((arg < 4) || (gctx->ivlen - arg) < 8)
1659 return 0;
1660
1661 if (arg)
1662 memcpy(gctx->iv, ptr, arg);
1663
1664 enc = EVP_CIPHER_CTX_encrypting(c);
16cfc2c9
KR		 1665 if (enc && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
1666 return 0;
96530eea
PS		 1667
1668 gctx->iv_gen = 1;
1669 return 1;
1670
1671 case EVP_CTRL_GCM_IV_GEN:
1672 if (gctx->iv_gen == 0 || gctx->key_set == 0)
1673 return 0;
1674
1675 s390x_aes_gcm_setiv(gctx, gctx->iv);
1676
1677 if (arg <= 0 || arg > gctx->ivlen)
1678 arg = gctx->ivlen;
1679
1680 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
1681 /*
1682 * Invocation field will be at least 8 bytes in size and so no need
1683 * to check wrap around or increment more than last 8 bytes.
1684 */
03a5e5ae 1685 ctr64_inc(gctx->iv + gctx->ivlen - 8);
96530eea
PS		 1686 gctx->iv_set = 1;
1687 return 1;
1688
1689 case EVP_CTRL_GCM_SET_IV_INV:
1690 enc = EVP_CIPHER_CTX_encrypting(c);
1691 if (gctx->iv_gen == 0 || gctx->key_set == 0 || enc)
1692 return 0;
1693
1694 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
1695 s390x_aes_gcm_setiv(gctx, gctx->iv);
1696 gctx->iv_set = 1;
1697 return 1;
1698
1699 case EVP_CTRL_AEAD_TLS1_AAD:
1700 /* Save the aad for later use. */
1701 if (arg != EVP_AEAD_TLS1_AAD_LEN)
1702 return 0;
1703
1704 buf = EVP_CIPHER_CTX_buf_noconst(c);
1705 memcpy(buf, ptr, arg);
1706 gctx->tls_aad_len = arg;
d6b34570 1707 gctx->tls_enc_records = 0;
96530eea
PS		 1708
1709 len = buf[arg - 2] << 8 | buf[arg - 1];
1710 /* Correct length for explicit iv. */
1711 if (len < EVP_GCM_TLS_EXPLICIT_IV_LEN)
1712 return 0;
1713 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
1714
1715 /* If decrypting correct for tag too. */
1716 enc = EVP_CIPHER_CTX_encrypting(c);
1717 if (!enc) {
1718 if (len < EVP_GCM_TLS_TAG_LEN)
1719 return 0;
1720 len -= EVP_GCM_TLS_TAG_LEN;
1721 }
1722 buf[arg - 2] = len >> 8;
1723 buf[arg - 1] = len & 0xff;
1724 /* Extra padding: tag appended to record. */
1725 return EVP_GCM_TLS_TAG_LEN;
1726
1727 case EVP_CTRL_COPY:
1728 out = ptr;
1729 gctx_out = EVP_C_DATA(S390X_AES_GCM_CTX, out);
1730 iv = EVP_CIPHER_CTX_iv_noconst(c);
1731
1732 if (gctx->iv == iv) {
1733 gctx_out->iv = EVP_CIPHER_CTX_iv_noconst(out);
1734 } else {
1735 len = S390X_gcm_ivpadlen(gctx->ivlen);
1736
cdb10bae
RS		 1737 if ((gctx_out->iv = OPENSSL_malloc(len)) == NULL) {
1738 EVPerr(EVP_F_S390X_AES_GCM_CTRL, ERR_R_MALLOC_FAILURE);
96530eea 1739 return 0;
cdb10bae 1740 }
96530eea
PS		 1741
1742 memcpy(gctx_out->iv, gctx->iv, len);
1743 }
1744 return 1;
1745
1746 default:
1747 return -1;
1748 }
1749}
1750
5d2a6f4b
PS		 1751/*-
1752 * Set key and/or iv. Returns 1 on success. Otherwise 0 is returned.
1753 */
96530eea
PS		 1754static int s390x_aes_gcm_init_key(EVP_CIPHER_CTX *ctx,
1755 const unsigned char *key,
1756 const unsigned char *iv, int enc)
1757{
1758 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, ctx);
1759 int keylen;
1760
1761 if (iv == NULL && key == NULL)
1762 return 1;
1763
1764 if (key != NULL) {
1765 keylen = EVP_CIPHER_CTX_key_length(ctx);
1766 memcpy(&gctx->kma.param.k, key, keylen);
1767
8eb399fb 1768 gctx->fc = S390X_AES_FC(keylen);
96530eea
PS		 1769 if (!enc)
1770 gctx->fc |= S390X_DECRYPT;
1771
1772 if (iv == NULL && gctx->iv_set)
1773 iv = gctx->iv;
1774
1775 if (iv != NULL) {
1776 s390x_aes_gcm_setiv(gctx, iv);
1777 gctx->iv_set = 1;
1778 }
1779 gctx->key_set = 1;
1780 } else {
1781 if (gctx->key_set)
1782 s390x_aes_gcm_setiv(gctx, iv);
1783 else
1784 memcpy(gctx->iv, iv, gctx->ivlen);
1785
1786 gctx->iv_set = 1;
1787 gctx->iv_gen = 0;
1788 }
1789 return 1;
1790}
1791
5d2a6f4b
PS		 1792/*-
1793 * En/de-crypt and authenticate TLS packet. Returns the number of bytes written
1794 * if successful. Otherwise -1 is returned. Code is big-endian.
1795 */
96530eea
PS		 1796static int s390x_aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1797 const unsigned char *in, size_t len)
1798{
1799 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, ctx);
1800 const unsigned char *buf = EVP_CIPHER_CTX_buf_noconst(ctx);
1801 const int enc = EVP_CIPHER_CTX_encrypting(ctx);
1802 int rv = -1;
1803
1804 if (out != in || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
1805 return -1;
1806
d6b34570
P		 1807 /*
1808 * Check for too many keys as per FIPS 140-2 IG A.5 "Key/IV Pair Uniqueness
1809 * Requirements from SP 800-38D". The requirements is for one party to the
1810 * communication to fail after 2^64 - 1 keys. We do this on the encrypting
1811 * side only.
1812 */
1813 if (ctx->encrypt && ++gctx->tls_enc_records == 0) {
1814 EVPerr(EVP_F_S390X_AES_GCM_TLS_CIPHER, EVP_R_TOO_MANY_RECORDS);
1815 goto err;
1816 }
1817
96530eea
PS		 1818 if (EVP_CIPHER_CTX_ctrl(ctx, enc ? EVP_CTRL_GCM_IV_GEN
1819 : EVP_CTRL_GCM_SET_IV_INV,
1820 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
1821 goto err;
1822
1823 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1824 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
1825 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1826
1827 gctx->kma.param.taadl = gctx->tls_aad_len << 3;
1828 gctx->kma.param.tpcl = len << 3;
1829 s390x_kma(buf, gctx->tls_aad_len, in, len, out,
1830 gctx->fc | S390X_KMA_LAAD | S390X_KMA_LPC, &gctx->kma.param);
1831
1832 if (enc) {
1833 memcpy(out + len, gctx->kma.param.t.b, EVP_GCM_TLS_TAG_LEN);
1834 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
1835 } else {
1836 if (CRYPTO_memcmp(gctx->kma.param.t.b, in + len,
1837 EVP_GCM_TLS_TAG_LEN)) {
1838 OPENSSL_cleanse(out, len);
1839 goto err;
1840 }
1841 rv = len;
1842 }
1843err:
1844 gctx->iv_set = 0;
1845 gctx->tls_aad_len = -1;
1846 return rv;
1847}
1848
5d2a6f4b
PS		 1849/*-
1850 * Called from EVP layer to initialize context, process additional
1851 * authenticated data, en/de-crypt plain/cipher-text and authenticate
1852 * ciphertext or process a TLS packet, depending on context. Returns bytes
1853 * written on success. Otherwise -1 is returned. Code is big-endian.
1854 */
96530eea
PS		 1855static int s390x_aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1856 const unsigned char *in, size_t len)
1857{
1858 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, ctx);
1859 unsigned char *buf, tmp[16];
1860 int enc;
1861
1862 if (!gctx->key_set)
1863 return -1;
1864
1865 if (gctx->tls_aad_len >= 0)
1866 return s390x_aes_gcm_tls_cipher(ctx, out, in, len);
1867
1868 if (!gctx->iv_set)
1869 return -1;
1870
1871 if (in != NULL) {
1872 if (out == NULL) {
1873 if (s390x_aes_gcm_aad(gctx, in, len))
1874 return -1;
1875 } else {
1876 if (s390x_aes_gcm(gctx, in, out, len))
1877 return -1;
1878 }
1879 return len;
1880 } else {
1881 gctx->kma.param.taadl <<= 3;
1882 gctx->kma.param.tpcl <<= 3;
1883 s390x_kma(gctx->ares, gctx->areslen, gctx->mres, gctx->mreslen, tmp,
1884 gctx->fc | S390X_KMA_LAAD | S390X_KMA_LPC, &gctx->kma.param);
1885 /* recall that we already did en-/decrypt gctx->mres
1886 * and returned it to caller... */
1887 OPENSSL_cleanse(tmp, gctx->mreslen);
1888 gctx->iv_set = 0;
1889
1890 enc = EVP_CIPHER_CTX_encrypting(ctx);
1891 if (enc) {
1892 gctx->taglen = 16;
1893 } else {
1894 if (gctx->taglen < 0)
1895 return -1;
1896
1897 buf = EVP_CIPHER_CTX_buf_noconst(ctx);
1898 if (CRYPTO_memcmp(buf, gctx->kma.param.t.b, gctx->taglen))
1899 return -1;
1900 }
1901 return 0;
1902 }
1903}
1904
1905static int s390x_aes_gcm_cleanup(EVP_CIPHER_CTX *c)
1906{
1907 S390X_AES_GCM_CTX *gctx = EVP_C_DATA(S390X_AES_GCM_CTX, c);
1908 const unsigned char *iv;
1909
1910 if (gctx == NULL)
1911 return 0;
1912
1913 iv = EVP_CIPHER_CTX_iv(c);
1914 if (iv != gctx->iv)
1915 OPENSSL_free(gctx->iv);
1916
1917 OPENSSL_cleanse(gctx, sizeof(*gctx));
1918 return 1;
1919}
1920
1921# define S390X_AES_XTS_CTX EVP_AES_XTS_CTX
1922# define S390X_aes_128_xts_CAPABLE 1 /* checked by callee */
1923# define S390X_aes_256_xts_CAPABLE 1
1924
1925# define s390x_aes_xts_init_key aes_xts_init_key
1926static int s390x_aes_xts_init_key(EVP_CIPHER_CTX *ctx,
1927 const unsigned char *key,
1928 const unsigned char *iv, int enc);
1929# define s390x_aes_xts_cipher aes_xts_cipher
1930static int s390x_aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
1931 const unsigned char *in, size_t len);
1932# define s390x_aes_xts_ctrl aes_xts_ctrl
1933static int s390x_aes_xts_ctrl(EVP_CIPHER_CTX *, int type, int arg, void *ptr);
1934# define s390x_aes_xts_cleanup aes_xts_cleanup
1935
39f5b069
PS		 1936# define S390X_aes_128_ccm_CAPABLE (S390X_aes_128_CAPABLE && \
1937 (OPENSSL_s390xcap_P.kmac[0] & \
1938 S390X_CAPBIT(S390X_AES_128)))
1939# define S390X_aes_192_ccm_CAPABLE (S390X_aes_192_CAPABLE && \
1940 (OPENSSL_s390xcap_P.kmac[0] & \
1941 S390X_CAPBIT(S390X_AES_192)))
1942# define S390X_aes_256_ccm_CAPABLE (S390X_aes_256_CAPABLE && \
1943 (OPENSSL_s390xcap_P.kmac[0] & \
1944 S390X_CAPBIT(S390X_AES_256)))
1945
1946# define S390X_CCM_AAD_FLAG 0x40
1947
1948/*-
1949 * Set nonce and length fields. Code is big-endian.
1950 */
1951static inline void s390x_aes_ccm_setiv(S390X_AES_CCM_CTX *ctx,
1952 const unsigned char *nonce,
1953 size_t mlen)
1954{
1955 ctx->aes.ccm.nonce.b[0] &= ~S390X_CCM_AAD_FLAG;
1956 ctx->aes.ccm.nonce.g[1] = mlen;
1957 memcpy(ctx->aes.ccm.nonce.b + 1, nonce, 15 - ctx->aes.ccm.l);
1958}
1959
1960/*-
1961 * Process additional authenticated data. Code is big-endian.
1962 */
1963static void s390x_aes_ccm_aad(S390X_AES_CCM_CTX *ctx, const unsigned char *aad,
1964 size_t alen)
1965{
1966 unsigned char *ptr;
1967 int i, rem;
1968
1969 if (!alen)
1970 return;
1971
1972 ctx->aes.ccm.nonce.b[0] |= S390X_CCM_AAD_FLAG;
1973
1974 /* Suppress 'type-punned pointer dereference' warning. */
1975 ptr = ctx->aes.ccm.buf.b;
1976
1977 if (alen < ((1 << 16) - (1 << 8))) {
1978 *(uint16_t *)ptr = alen;
1979 i = 2;
1980 } else if (sizeof(alen) == 8
1981 && alen >= (size_t)1 << (32 % (sizeof(alen) * 8))) {
1982 *(uint16_t *)ptr = 0xffff;
1983 *(uint64_t *)(ptr + 2) = alen;
1984 i = 10;
1985 } else {
1986 *(uint16_t *)ptr = 0xfffe;
1987 *(uint32_t *)(ptr + 2) = alen;
1988 i = 6;
1989 }
1990
1991 while (i < 16 && alen) {
1992 ctx->aes.ccm.buf.b[i] = *aad;
1993 ++aad;
1994 --alen;
1995 ++i;
1996 }
1997 while (i < 16) {
1998 ctx->aes.ccm.buf.b[i] = 0;
1999 ++i;
2000 }
2001
2002 ctx->aes.ccm.kmac_param.icv.g[0] = 0;
2003 ctx->aes.ccm.kmac_param.icv.g[1] = 0;
2004 s390x_kmac(ctx->aes.ccm.nonce.b, 32, ctx->aes.ccm.fc,
2005 &ctx->aes.ccm.kmac_param);
2006 ctx->aes.ccm.blocks += 2;
2007
2008 rem = alen & 0xf;
25868993 2009 alen &= ~(size_t)0xf;
39f5b069
PS		 2010 if (alen) {
2011 s390x_kmac(aad, alen, ctx->aes.ccm.fc, &ctx->aes.ccm.kmac_param);
2012 ctx->aes.ccm.blocks += alen >> 4;
2013 aad += alen;
2014 }
2015 if (rem) {
2016 for (i = 0; i < rem; i++)
2017 ctx->aes.ccm.kmac_param.icv.b[i] ^= aad[i];
2018
2019 s390x_km(ctx->aes.ccm.kmac_param.icv.b, 16,
2020 ctx->aes.ccm.kmac_param.icv.b, ctx->aes.ccm.fc,
2021 ctx->aes.ccm.kmac_param.k);
2022 ctx->aes.ccm.blocks++;
2023 }
2024}
2025
2026/*-
2027 * En/de-crypt plain/cipher-text. Compute tag from plaintext. Returns 0 for
2028 * success.
2029 */
2030static int s390x_aes_ccm(S390X_AES_CCM_CTX *ctx, const unsigned char *in,
2031 unsigned char *out, size_t len, int enc)
2032{
2033 size_t n, rem;
2034 unsigned int i, l, num;
2035 unsigned char flags;
2036
2037 flags = ctx->aes.ccm.nonce.b[0];
2038 if (!(flags & S390X_CCM_AAD_FLAG)) {
2039 s390x_km(ctx->aes.ccm.nonce.b, 16, ctx->aes.ccm.kmac_param.icv.b,
2040 ctx->aes.ccm.fc, ctx->aes.ccm.kmac_param.k);
2041 ctx->aes.ccm.blocks++;
2042 }
2043 l = flags & 0x7;
2044 ctx->aes.ccm.nonce.b[0] = l;
2045
2046 /*-
2047 * Reconstruct length from encoded length field
2048 * and initialize it with counter value.
2049 */
2050 n = 0;
2051 for (i = 15 - l; i < 15; i++) {
2052 n |= ctx->aes.ccm.nonce.b[i];
2053 ctx->aes.ccm.nonce.b[i] = 0;
2054 n <<= 8;
2055 }
2056 n |= ctx->aes.ccm.nonce.b[15];
2057 ctx->aes.ccm.nonce.b[15] = 1;
2058
2059 if (n != len)
2060 return -1; /* length mismatch */
2061
2062 if (enc) {
2063 /* Two operations per block plus one for tag encryption */
2064 ctx->aes.ccm.blocks += (((len + 15) >> 4) << 1) + 1;
2065 if (ctx->aes.ccm.blocks > (1ULL << 61))
2066 return -2; /* too much data */
2067 }
2068
2069 num = 0;
2070 rem = len & 0xf;
25868993 2071 len &= ~(size_t)0xf;
39f5b069
PS		 2072
2073 if (enc) {
2074 /* mac-then-encrypt */
2075 if (len)
2076 s390x_kmac(in, len, ctx->aes.ccm.fc, &ctx->aes.ccm.kmac_param);
2077 if (rem) {
2078 for (i = 0; i < rem; i++)
2079 ctx->aes.ccm.kmac_param.icv.b[i] ^= in[len + i];
2080
2081 s390x_km(ctx->aes.ccm.kmac_param.icv.b, 16,
2082 ctx->aes.ccm.kmac_param.icv.b, ctx->aes.ccm.fc,
2083 ctx->aes.ccm.kmac_param.k);
2084 }
2085
2086 CRYPTO_ctr128_encrypt_ctr32(in, out, len + rem, &ctx->aes.key.k,
2087 ctx->aes.ccm.nonce.b, ctx->aes.ccm.buf.b,
2088 &num, (ctr128_f)AES_ctr32_encrypt);
2089 } else {
2090 /* decrypt-then-mac */
2091 CRYPTO_ctr128_encrypt_ctr32(in, out, len + rem, &ctx->aes.key.k,
2092 ctx->aes.ccm.nonce.b, ctx->aes.ccm.buf.b,
2093 &num, (ctr128_f)AES_ctr32_encrypt);
2094
2095 if (len)
2096 s390x_kmac(out, len, ctx->aes.ccm.fc, &ctx->aes.ccm.kmac_param);
2097 if (rem) {
2098 for (i = 0; i < rem; i++)
2099 ctx->aes.ccm.kmac_param.icv.b[i] ^= out[len + i];
2100
2101 s390x_km(ctx->aes.ccm.kmac_param.icv.b, 16,
2102 ctx->aes.ccm.kmac_param.icv.b, ctx->aes.ccm.fc,
2103 ctx->aes.ccm.kmac_param.k);
2104 }
2105 }
2106 /* encrypt tag */
2107 for (i = 15 - l; i < 16; i++)
2108 ctx->aes.ccm.nonce.b[i] = 0;
2109
2110 s390x_km(ctx->aes.ccm.nonce.b, 16, ctx->aes.ccm.buf.b, ctx->aes.ccm.fc,
2111 ctx->aes.ccm.kmac_param.k);
2112 ctx->aes.ccm.kmac_param.icv.g[0] ^= ctx->aes.ccm.buf.g[0];
2113 ctx->aes.ccm.kmac_param.icv.g[1] ^= ctx->aes.ccm.buf.g[1];
2114
2115 ctx->aes.ccm.nonce.b[0] = flags; /* restore flags field */
2116 return 0;
2117}
2118
2119/*-
2120 * En/de-crypt and authenticate TLS packet. Returns the number of bytes written
2121 * if successful. Otherwise -1 is returned.
2122 */
2123static int s390x_aes_ccm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2124 const unsigned char *in, size_t len)
2125{
2126 S390X_AES_CCM_CTX *cctx = EVP_C_DATA(S390X_AES_CCM_CTX, ctx);
2127 unsigned char *ivec = EVP_CIPHER_CTX_iv_noconst(ctx);
2128 unsigned char *buf = EVP_CIPHER_CTX_buf_noconst(ctx);
2129 const int enc = EVP_CIPHER_CTX_encrypting(ctx);
2130
2131 if (out != in
2132 || len < (EVP_CCM_TLS_EXPLICIT_IV_LEN + (size_t)cctx->aes.ccm.m))
2133 return -1;
2134
2135 if (enc) {
2136 /* Set explicit iv (sequence number). */
2137 memcpy(out, buf, EVP_CCM_TLS_EXPLICIT_IV_LEN);
2138 }
2139
2140 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->aes.ccm.m;
2141 /*-
2142 * Get explicit iv (sequence number). We already have fixed iv
2143 * (server/client_write_iv) here.
2144 */
2145 memcpy(ivec + EVP_CCM_TLS_FIXED_IV_LEN, in, EVP_CCM_TLS_EXPLICIT_IV_LEN);
2146 s390x_aes_ccm_setiv(cctx, ivec, len);
2147
2148 /* Process aad (sequence number|type|version|length) */
2149 s390x_aes_ccm_aad(cctx, buf, cctx->aes.ccm.tls_aad_len);
2150
2151 in += EVP_CCM_TLS_EXPLICIT_IV_LEN;
2152 out += EVP_CCM_TLS_EXPLICIT_IV_LEN;
96530eea 2153
39f5b069
PS		 2154 if (enc) {
2155 if (s390x_aes_ccm(cctx, in, out, len, enc))
2156 return -1;
2157
2158 memcpy(out + len, cctx->aes.ccm.kmac_param.icv.b, cctx->aes.ccm.m);
2159 return len + EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->aes.ccm.m;
2160 } else {
2161 if (!s390x_aes_ccm(cctx, in, out, len, enc)) {
2162 if (!CRYPTO_memcmp(cctx->aes.ccm.kmac_param.icv.b, in + len,
2163 cctx->aes.ccm.m))
2164 return len;
2165 }
2166
2167 OPENSSL_cleanse(out, len);
2168 return -1;
2169 }
2170}
2171
2172/*-
2173 * Set key and flag field and/or iv. Returns 1 if successful. Otherwise 0 is
2174 * returned.
2175 */
96530eea
PS		 2176static int s390x_aes_ccm_init_key(EVP_CIPHER_CTX *ctx,
2177 const unsigned char *key,
39f5b069
PS		 2178 const unsigned char *iv, int enc)
2179{
2180 S390X_AES_CCM_CTX *cctx = EVP_C_DATA(S390X_AES_CCM_CTX, ctx);
2181 unsigned char *ivec;
2182 int keylen;
2183
2184 if (iv == NULL && key == NULL)
2185 return 1;
2186
2187 if (key != NULL) {
2188 keylen = EVP_CIPHER_CTX_key_length(ctx);
8eb399fb 2189 cctx->aes.ccm.fc = S390X_AES_FC(keylen);
39f5b069
PS		 2190 memcpy(cctx->aes.ccm.kmac_param.k, key, keylen);
2191
2192 /* Store encoded m and l. */
2193 cctx->aes.ccm.nonce.b[0] = ((cctx->aes.ccm.l - 1) & 0x7)
2194 | (((cctx->aes.ccm.m - 2) >> 1) & 0x7) << 3;
2195 memset(cctx->aes.ccm.nonce.b + 1, 0,
2196 sizeof(cctx->aes.ccm.nonce.b));
2197 cctx->aes.ccm.blocks = 0;
2198
2199 cctx->aes.ccm.key_set = 1;
2200 }
2201
2202 if (iv != NULL) {
2203 ivec = EVP_CIPHER_CTX_iv_noconst(ctx);
2204 memcpy(ivec, iv, 15 - cctx->aes.ccm.l);
2205
2206 cctx->aes.ccm.iv_set = 1;
2207 }
2208
2209 return 1;
2210}
2211
2212/*-
2213 * Called from EVP layer to initialize context, process additional
2214 * authenticated data, en/de-crypt plain/cipher-text and authenticate
2215 * plaintext or process a TLS packet, depending on context. Returns bytes
2216 * written on success. Otherwise -1 is returned.
2217 */
96530eea 2218static int s390x_aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
39f5b069
PS		 2219 const unsigned char *in, size_t len)
2220{
2221 S390X_AES_CCM_CTX *cctx = EVP_C_DATA(S390X_AES_CCM_CTX, ctx);
2222 const int enc = EVP_CIPHER_CTX_encrypting(ctx);
2223 int rv;
2224 unsigned char *buf, *ivec;
2225
2226 if (!cctx->aes.ccm.key_set)
2227 return -1;
2228
2229 if (cctx->aes.ccm.tls_aad_len >= 0)
2230 return s390x_aes_ccm_tls_cipher(ctx, out, in, len);
2231
2232 /*-
2233 * Final(): Does not return any data. Recall that ccm is mac-then-encrypt
2234 * so integrity must be checked already at Update() i.e., before
2235 * potentially corrupted data is output.
2236 */
2237 if (in == NULL && out != NULL)
2238 return 0;
2239
2240 if (!cctx->aes.ccm.iv_set)
2241 return -1;
2242
2243 if (!enc && !cctx->aes.ccm.tag_set)
2244 return -1;
2245
2246 if (out == NULL) {
2247 /* Update(): Pass message length. */
2248 if (in == NULL) {
2249 ivec = EVP_CIPHER_CTX_iv_noconst(ctx);
2250 s390x_aes_ccm_setiv(cctx, ivec, len);
2251
2252 cctx->aes.ccm.len_set = 1;
2253 return len;
2254 }
2255
2256 /* Update(): Process aad. */
2257 if (!cctx->aes.ccm.len_set && len)
2258 return -1;
2259
2260 s390x_aes_ccm_aad(cctx, in, len);
2261 return len;
2262 }
2263
2264 /* Update(): Process message. */
2265
2266 if (!cctx->aes.ccm.len_set) {
2267 /*-
46d08509 2268 * In case message length was not previously set explicitly via
39f5b069
PS		 2269 * Update(), set it now.
2270 */
2271 ivec = EVP_CIPHER_CTX_iv_noconst(ctx);
2272 s390x_aes_ccm_setiv(cctx, ivec, len);
2273
2274 cctx->aes.ccm.len_set = 1;
2275 }
2276
2277 if (enc) {
2278 if (s390x_aes_ccm(cctx, in, out, len, enc))
2279 return -1;
2280
2281 cctx->aes.ccm.tag_set = 1;
2282 return len;
2283 } else {
2284 rv = -1;
2285
2286 if (!s390x_aes_ccm(cctx, in, out, len, enc)) {
2287 buf = EVP_CIPHER_CTX_buf_noconst(ctx);
2288 if (!CRYPTO_memcmp(cctx->aes.ccm.kmac_param.icv.b, buf,
2289 cctx->aes.ccm.m))
2290 rv = len;
2291 }
2292
2293 if (rv == -1)
2294 OPENSSL_cleanse(out, len);
2295
2296 cctx->aes.ccm.iv_set = 0;
2297 cctx->aes.ccm.tag_set = 0;
2298 cctx->aes.ccm.len_set = 0;
2299 return rv;
2300 }
2301}
2302
2303/*-
2304 * Performs various operations on the context structure depending on control
2305 * type. Returns 1 for success, 0 for failure and -1 for unknown control type.
2306 * Code is big-endian.
2307 */
2308static int s390x_aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
2309{
2310 S390X_AES_CCM_CTX *cctx = EVP_C_DATA(S390X_AES_CCM_CTX, c);
2311 unsigned char *buf, *iv;
2312 int enc, len;
2313
2314 switch (type) {
2315 case EVP_CTRL_INIT:
2316 cctx->aes.ccm.key_set = 0;
2317 cctx->aes.ccm.iv_set = 0;
2318 cctx->aes.ccm.l = 8;
2319 cctx->aes.ccm.m = 12;
2320 cctx->aes.ccm.tag_set = 0;
2321 cctx->aes.ccm.len_set = 0;
2322 cctx->aes.ccm.tls_aad_len = -1;
2323 return 1;
2324
2325 case EVP_CTRL_AEAD_TLS1_AAD:
2326 if (arg != EVP_AEAD_TLS1_AAD_LEN)
2327 return 0;
2328
2329 /* Save the aad for later use. */
2330 buf = EVP_CIPHER_CTX_buf_noconst(c);
2331 memcpy(buf, ptr, arg);
2332 cctx->aes.ccm.tls_aad_len = arg;
2333
03a5e5ae 2334 len = buf[arg - 2] << 8 | buf[arg - 1];
39f5b069
PS		 2335 if (len < EVP_CCM_TLS_EXPLICIT_IV_LEN)
2336 return 0;
2337
2338 /* Correct length for explicit iv. */
2339 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN;
2340
2341 enc = EVP_CIPHER_CTX_encrypting(c);
2342 if (!enc) {
2343 if (len < cctx->aes.ccm.m)
2344 return 0;
2345
2346 /* Correct length for tag. */
2347 len -= cctx->aes.ccm.m;
2348 }
2349
03a5e5ae
PS		 2350 buf[arg - 2] = len >> 8;
2351 buf[arg - 1] = len & 0xff;
2352
39f5b069
PS		 2353 /* Extra padding: tag appended to record. */
2354 return cctx->aes.ccm.m;
2355
2356 case EVP_CTRL_CCM_SET_IV_FIXED:
2357 if (arg != EVP_CCM_TLS_FIXED_IV_LEN)
2358 return 0;
2359
2360 /* Copy to first part of the iv. */
2361 iv = EVP_CIPHER_CTX_iv_noconst(c);
2362 memcpy(iv, ptr, arg);
2363 return 1;
2364
2365 case EVP_CTRL_AEAD_SET_IVLEN:
2366 arg = 15 - arg;
2367 /* fall-through */
2368
2369 case EVP_CTRL_CCM_SET_L:
2370 if (arg < 2 || arg > 8)
2371 return 0;
2372
2373 cctx->aes.ccm.l = arg;
2374 return 1;
2375
2376 case EVP_CTRL_AEAD_SET_TAG:
2377 if ((arg & 1) || arg < 4 || arg > 16)
2378 return 0;
2379
2380 enc = EVP_CIPHER_CTX_encrypting(c);
2381 if (enc && ptr)
2382 return 0;
2383
2384 if (ptr) {
2385 cctx->aes.ccm.tag_set = 1;
2386 buf = EVP_CIPHER_CTX_buf_noconst(c);
2387 memcpy(buf, ptr, arg);
2388 }
2389
2390 cctx->aes.ccm.m = arg;
2391 return 1;
2392
2393 case EVP_CTRL_AEAD_GET_TAG:
2394 enc = EVP_CIPHER_CTX_encrypting(c);
2395 if (!enc || !cctx->aes.ccm.tag_set)
2396 return 0;
2397
2398 if(arg < cctx->aes.ccm.m)
2399 return 0;
2400
2401 memcpy(ptr, cctx->aes.ccm.kmac_param.icv.b, cctx->aes.ccm.m);
2402 cctx->aes.ccm.tag_set = 0;
2403 cctx->aes.ccm.iv_set = 0;
2404 cctx->aes.ccm.len_set = 0;
2405 return 1;
2406
2407 case EVP_CTRL_COPY:
2408 return 1;
2409
2410 default:
2411 return -1;
2412 }
2413}
2414
96530eea
PS		 2415# define s390x_aes_ccm_cleanup aes_ccm_cleanup
2416
2417# ifndef OPENSSL_NO_OCB
2418# define S390X_AES_OCB_CTX EVP_AES_OCB_CTX
2419# define S390X_aes_128_ocb_CAPABLE 0
2420# define S390X_aes_192_ocb_CAPABLE 0
2421# define S390X_aes_256_ocb_CAPABLE 0
2422
2423# define s390x_aes_ocb_init_key aes_ocb_init_key
2424static int s390x_aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
2425 const unsigned char *iv, int enc);
2426# define s390x_aes_ocb_cipher aes_ocb_cipher
2427static int s390x_aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2428 const unsigned char *in, size_t len);
2429# define s390x_aes_ocb_cleanup aes_ocb_cleanup
2430static int s390x_aes_ocb_cleanup(EVP_CIPHER_CTX *);
2431# define s390x_aes_ocb_ctrl aes_ocb_ctrl
2432static int s390x_aes_ocb_ctrl(EVP_CIPHER_CTX *, int type, int arg, void *ptr);
2433# endif
2434
e74be3d4
RL		 2435# ifndef OPENSSL_NO_SIV
2436# define S390X_AES_SIV_CTX EVP_AES_SIV_CTX
2437# define S390X_aes_128_siv_CAPABLE 0
2438# define S390X_aes_192_siv_CAPABLE 0
2439# define S390X_aes_256_siv_CAPABLE 0
2440
2441# define s390x_aes_siv_init_key aes_siv_init_key
2442# define s390x_aes_siv_cipher aes_siv_cipher
2443# define s390x_aes_siv_cleanup aes_siv_cleanup
2444# define s390x_aes_siv_ctrl aes_siv_ctrl
2445# endif
2446
96530eea
PS		 2447# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode, \
2448 MODE,flags) \
2449static const EVP_CIPHER s390x_aes_##keylen##_##mode = { \
2450 nid##_##keylen##_##nmode,blocksize, \
2451 keylen / 8, \
2452 ivlen, \
2453 flags | EVP_CIPH_##MODE##_MODE, \
55bd169f 2454 s390x_aes_##mode##_init_key, \
96530eea
PS		 2455 s390x_aes_##mode##_cipher, \
2456 NULL, \
55bd169f 2457 sizeof(S390X_AES_##MODE##_CTX), \
96530eea
PS		 2458 NULL, \
2459 NULL, \
2460 NULL, \
2461 NULL \
2462}; \
2463static const EVP_CIPHER aes_##keylen##_##mode = { \
2464 nid##_##keylen##_##nmode, \
2465 blocksize, \
2466 keylen / 8, \
2467 ivlen, \
2468 flags | EVP_CIPH_##MODE##_MODE, \
2469 aes_init_key, \
2470 aes_##mode##_cipher, \
2471 NULL, \
2472 sizeof(EVP_AES_KEY), \
55bd169f
PS		 2473 NULL, \
2474 NULL, \
2475 NULL, \
2476 NULL \
96530eea
PS		 2477}; \
2478const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2479{ \
2480 return S390X_aes_##keylen##_##mode##_CAPABLE ? \
2481 &s390x_aes_##keylen##_##mode : &aes_##keylen##_##mode; \
2482}
2483
2484# define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags)\
2485static const EVP_CIPHER s390x_aes_##keylen##_##mode = { \
2486 nid##_##keylen##_##mode, \
2487 blocksize, \
e74be3d4 2488 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE ? 2 : 1) * keylen / 8, \
96530eea
PS		 2489 ivlen, \
2490 flags | EVP_CIPH_##MODE##_MODE, \
2491 s390x_aes_##mode##_init_key, \
2492 s390x_aes_##mode##_cipher, \
2493 s390x_aes_##mode##_cleanup, \
2494 sizeof(S390X_AES_##MODE##_CTX), \
2495 NULL, \
2496 NULL, \
2497 s390x_aes_##mode##_ctrl, \
2498 NULL \
2499}; \
2500static const EVP_CIPHER aes_##keylen##_##mode = { \
2501 nid##_##keylen##_##mode,blocksize, \
e74be3d4 2502 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE ? 2 : 1) * keylen / 8, \
96530eea
PS		 2503 ivlen, \
2504 flags | EVP_CIPH_##MODE##_MODE, \
2505 aes_##mode##_init_key, \
2506 aes_##mode##_cipher, \
2507 aes_##mode##_cleanup, \
2508 sizeof(EVP_AES_##MODE##_CTX), \
2509 NULL, \
2510 NULL, \
2511 aes_##mode##_ctrl, \
2512 NULL \
2513}; \
2514const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2515{ \
2516 return S390X_aes_##keylen##_##mode##_CAPABLE ? \
2517 &s390x_aes_##keylen##_##mode : &aes_##keylen##_##mode; \
2518}
2519
5158c763 2520#else
17f121de 2521
5158c763 2522# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
17f121de 2523static const EVP_CIPHER aes_##keylen##_##mode = { \
0f113f3e
MC		 2524 nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
2525 flags|EVP_CIPH_##MODE##_MODE, \
2526 aes_init_key, \
2527 aes_##mode##_cipher, \
2528 NULL, \
2529 sizeof(EVP_AES_KEY), \
2530 NULL,NULL,NULL,NULL }; \
17f121de
AP		 2531const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2532{ return &aes_##keylen##_##mode; }
d1fff483 2533
5158c763 2534# define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
17f121de 2535static const EVP_CIPHER aes_##keylen##_##mode = { \
0f113f3e 2536 nid##_##keylen##_##mode,blocksize, \
b1ceb439
TS		 2537 (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
2538 ivlen, \
0f113f3e
MC		 2539 flags|EVP_CIPH_##MODE##_MODE, \
2540 aes_##mode##_init_key, \
2541 aes_##mode##_cipher, \
2542 aes_##mode##_cleanup, \
2543 sizeof(EVP_AES_##MODE##_CTX), \
2544 NULL,NULL,aes_##mode##_ctrl,NULL }; \
17f121de
AP		 2545const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
2546{ return &aes_##keylen##_##mode; }
9575d1a9 2547
5158c763 2548#endif
9575d1a9 2549
5158c763
MC		 2550#if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
2551# include "arm_arch.h"
2552# if __ARM_MAX_ARCH__>=7
2553# if defined(BSAES_ASM)
2554# define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
2555# endif
2556# if defined(VPAES_ASM)
2557# define VPAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
0f113f3e 2558# endif
5158c763
MC		 2559# define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
2560# define HWAES_set_encrypt_key aes_v8_set_encrypt_key
2561# define HWAES_set_decrypt_key aes_v8_set_decrypt_key
2562# define HWAES_encrypt aes_v8_encrypt
2563# define HWAES_decrypt aes_v8_decrypt
2564# define HWAES_cbc_encrypt aes_v8_cbc_encrypt
2565# define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
ddacb8f2 2566# endif
5158c763 2567#endif
d1fff483 2568
5158c763 2569#if defined(HWAES_CAPABLE)
ddacb8f2 2570int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits,
0f113f3e 2571 AES_KEY *key);
ddacb8f2 2572int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits,
0f113f3e 2573 AES_KEY *key);
ddacb8f2 2574void HWAES_encrypt(const unsigned char *in, unsigned char *out,
0f113f3e 2575 const AES_KEY *key);
ddacb8f2 2576void HWAES_decrypt(const unsigned char *in, unsigned char *out,
0f113f3e 2577 const AES_KEY *key);
ddacb8f2 2578void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out,
0f113f3e
MC		 2579 size_t length, const AES_KEY *key,
2580 unsigned char *ivec, const int enc);
ddacb8f2 2581void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
0f113f3e
MC		 2582 size_t len, const AES_KEY *key,
2583 const unsigned char ivec[16]);
46f047d7
AP		 2584void HWAES_xts_encrypt(const unsigned char *inp, unsigned char *out,
2585 size_t len, const AES_KEY *key1,
2586 const AES_KEY *key2, const unsigned char iv[16]);
2587void HWAES_xts_decrypt(const unsigned char *inp, unsigned char *out,
2588 size_t len, const AES_KEY *key1,
2589 const AES_KEY *key2, const unsigned char iv[16]);
5158c763 2590#endif
ddacb8f2 2591
5158c763 2592#define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
0f113f3e
MC		 2593 BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2594 BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2595 BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2596 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
2597 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
2598 BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
2599 BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
d1fff483
AP		 2600
2601static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 2602 const unsigned char *iv, int enc)
2603{
2604 int ret, mode;
6435f0f6 2605 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
0f113f3e 2606
6435f0f6 2607 mode = EVP_CIPHER_CTX_mode(ctx);
0f113f3e 2608 if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
c01a3c6d 2609 && !enc) {
5158c763 2610#ifdef HWAES_CAPABLE
0f113f3e 2611 if (HWAES_CAPABLE) {
6435f0f6
RL		 2612 ret = HWAES_set_decrypt_key(key,
2613 EVP_CIPHER_CTX_key_length(ctx) * 8,
2614 &dat->ks.ks);
0f113f3e
MC		 2615 dat->block = (block128_f) HWAES_decrypt;
2616 dat->stream.cbc = NULL;
5158c763 2617# ifdef HWAES_cbc_encrypt
0f113f3e
MC		 2618 if (mode == EVP_CIPH_CBC_MODE)
2619 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
0f113f3e 2620# endif
5158c763
MC		 2621 } else
2622#endif
2623#ifdef BSAES_CAPABLE
0f113f3e 2624 if (BSAES_CAPABLE && mode == EVP_CIPH_CBC_MODE) {
6435f0f6
RL		 2625 ret = AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2626 &dat->ks.ks);
0f113f3e
MC		 2627 dat->block = (block128_f) AES_decrypt;
2628 dat->stream.cbc = (cbc128_f) bsaes_cbc_encrypt;
2629 } else
5158c763
MC		 2630#endif
2631#ifdef VPAES_CAPABLE
0f113f3e 2632 if (VPAES_CAPABLE) {
6435f0f6
RL		 2633 ret = vpaes_set_decrypt_key(key,
2634 EVP_CIPHER_CTX_key_length(ctx) * 8,
2635 &dat->ks.ks);
0f113f3e
MC		 2636 dat->block = (block128_f) vpaes_decrypt;
2637 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
2638 (cbc128_f) vpaes_cbc_encrypt : NULL;
2639 } else
5158c763 2640#endif
0f113f3e 2641 {
6435f0f6
RL		 2642 ret = AES_set_decrypt_key(key,
2643 EVP_CIPHER_CTX_key_length(ctx) * 8,
2644 &dat->ks.ks);
0f113f3e
MC		 2645 dat->block = (block128_f) AES_decrypt;
2646 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
2647 (cbc128_f) AES_cbc_encrypt : NULL;
c01a3c6d 2648 }
0f113f3e 2649 } else
5158c763 2650#ifdef HWAES_CAPABLE
0f113f3e 2651 if (HWAES_CAPABLE) {
6435f0f6
RL		 2652 ret = HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2653 &dat->ks.ks);
0f113f3e
MC		 2654 dat->block = (block128_f) HWAES_encrypt;
2655 dat->stream.cbc = NULL;
5158c763 2656# ifdef HWAES_cbc_encrypt
0f113f3e
MC		 2657 if (mode == EVP_CIPH_CBC_MODE)
2658 dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
2659 else
5158c763
MC		 2660# endif
2661# ifdef HWAES_ctr32_encrypt_blocks
0f113f3e
MC		 2662 if (mode == EVP_CIPH_CTR_MODE)
2663 dat->stream.ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
2664 else
5158c763 2665# endif
0f113f3e
MC		 2666 (void)0; /* terminate potentially open 'else' */
2667 } else
5158c763
MC		 2668#endif
2669#ifdef BSAES_CAPABLE
0f113f3e 2670 if (BSAES_CAPABLE && mode == EVP_CIPH_CTR_MODE) {
6435f0f6
RL		 2671 ret = AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2672 &dat->ks.ks);
0f113f3e
MC		 2673 dat->block = (block128_f) AES_encrypt;
2674 dat->stream.ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
2675 } else
5158c763
MC		 2676#endif
2677#ifdef VPAES_CAPABLE
0f113f3e 2678 if (VPAES_CAPABLE) {
6435f0f6
RL		 2679 ret = vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2680 &dat->ks.ks);
0f113f3e
MC		 2681 dat->block = (block128_f) vpaes_encrypt;
2682 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
2683 (cbc128_f) vpaes_cbc_encrypt : NULL;
2684 } else
5158c763 2685#endif
0f113f3e 2686 {
6435f0f6
RL		 2687 ret = AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
2688 &dat->ks.ks);
0f113f3e
MC		 2689 dat->block = (block128_f) AES_encrypt;
2690 dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
2691 (cbc128_f) AES_cbc_encrypt : NULL;
5158c763 2692#ifdef AES_CTR_ASM
0f113f3e
MC		 2693 if (mode == EVP_CIPH_CTR_MODE)
2694 dat->stream.ctr = (ctr128_f) AES_ctr32_encrypt;
5158c763 2695#endif
0f113f3e 2696 }
d1fff483 2697
0f113f3e
MC		 2698 if (ret < 0) {
2699 EVPerr(EVP_F_AES_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
2700 return 0;
2701 }
d1fff483 2702
0f113f3e
MC		 2703 return 1;
2704}
d1fff483 2705
0f113f3e
MC		 2706static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2707 const unsigned char *in, size_t len)
17f121de 2708{
6435f0f6 2709 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
8ca28da0 2710
0f113f3e 2711 if (dat->stream.cbc)
6435f0f6
RL		 2712 (*dat->stream.cbc) (in, out, len, &dat->ks,
2713 EVP_CIPHER_CTX_iv_noconst(ctx),
2714 EVP_CIPHER_CTX_encrypting(ctx));
2715 else if (EVP_CIPHER_CTX_encrypting(ctx))
2716 CRYPTO_cbc128_encrypt(in, out, len, &dat->ks,
2717 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
0f113f3e 2718 else
6435f0f6
RL		 2719 CRYPTO_cbc128_decrypt(in, out, len, &dat->ks,
2720 EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
17f121de 2721
0f113f3e 2722 return 1;
17f121de
AP		 2723}
2724
0f113f3e
MC		 2725static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2726 const unsigned char *in, size_t len)
17f121de 2727{
6435f0f6 2728 size_t bl = EVP_CIPHER_CTX_block_size(ctx);
0f113f3e 2729 size_t i;
6435f0f6 2730 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
17f121de 2731
0f113f3e
MC		 2732 if (len < bl)
2733 return 1;
17f121de 2734
0f113f3e
MC		 2735 for (i = 0, len -= bl; i <= len; i += bl)
2736 (*dat->block) (in + i, out + i, &dat->ks);
17f121de 2737
0f113f3e 2738 return 1;
17f121de 2739}
deb2c1a1 2740
0f113f3e
MC		 2741static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2742 const unsigned char *in, size_t len)
17f121de 2743{
6435f0f6 2744 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
8ca28da0 2745
6435f0f6 2746 int num = EVP_CIPHER_CTX_num(ctx);
0f113f3e 2747 CRYPTO_ofb128_encrypt(in, out, len, &dat->ks,
6435f0f6
RL		 2748 EVP_CIPHER_CTX_iv_noconst(ctx), &num, dat->block);
2749 EVP_CIPHER_CTX_set_num(ctx, num);
0f113f3e 2750 return 1;
17f121de 2751}
deb2c1a1 2752
0f113f3e
MC		 2753static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2754 const unsigned char *in, size_t len)
17f121de 2755{
6435f0f6 2756 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
8ca28da0 2757
6435f0f6 2758 int num = EVP_CIPHER_CTX_num(ctx);
0f113f3e 2759 CRYPTO_cfb128_encrypt(in, out, len, &dat->ks,
6435f0f6
RL		 2760 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2761 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2762 EVP_CIPHER_CTX_set_num(ctx, num);
0f113f3e 2763 return 1;
17f121de
AP		 2764}
2765
0f113f3e
MC		 2766static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2767 const unsigned char *in, size_t len)
17f121de 2768{
6435f0f6 2769 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
8ca28da0 2770
6435f0f6 2771 int num = EVP_CIPHER_CTX_num(ctx);
0f113f3e 2772 CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks,
6435f0f6
RL		 2773 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2774 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2775 EVP_CIPHER_CTX_set_num(ctx, num);
0f113f3e 2776 return 1;
17f121de 2777}
8d1ebe0b 2778
0f113f3e
MC		 2779static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2780 const unsigned char *in, size_t len)
17f121de 2781{
6435f0f6 2782 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
0f113f3e 2783
6435f0f6
RL		 2784 if (EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS)) {
2785 int num = EVP_CIPHER_CTX_num(ctx);
0f113f3e 2786 CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks,
6435f0f6
RL		 2787 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2788 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2789 EVP_CIPHER_CTX_set_num(ctx, num);
0f113f3e
MC		 2790 return 1;
2791 }
2792
2793 while (len >= MAXBITCHUNK) {
6435f0f6 2794 int num = EVP_CIPHER_CTX_num(ctx);
0f113f3e 2795 CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
6435f0f6
RL		 2796 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2797 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2798 EVP_CIPHER_CTX_set_num(ctx, num);
0f113f3e 2799 len -= MAXBITCHUNK;
604e591e
BE		 2800 out += MAXBITCHUNK;
2801 in += MAXBITCHUNK;
0f113f3e 2802 }
6435f0f6
RL		 2803 if (len) {
2804 int num = EVP_CIPHER_CTX_num(ctx);
0f113f3e 2805 CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
6435f0f6
RL		 2806 EVP_CIPHER_CTX_iv_noconst(ctx), &num,
2807 EVP_CIPHER_CTX_encrypting(ctx), dat->block);
2808 EVP_CIPHER_CTX_set_num(ctx, num);
2809 }
0f113f3e
MC		 2810
2811 return 1;
17f121de 2812}
8d1ebe0b 2813
0f113f3e
MC		 2814static int aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
2815 const unsigned char *in, size_t len)
d976f992 2816{
6435f0f6
RL		 2817 unsigned int num = EVP_CIPHER_CTX_num(ctx);
2818 EVP_AES_KEY *dat = EVP_C_DATA(EVP_AES_KEY,ctx);
0f113f3e
MC		 2819
2820 if (dat->stream.ctr)
2821 CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
6435f0f6
RL		 2822 EVP_CIPHER_CTX_iv_noconst(ctx),
2823 EVP_CIPHER_CTX_buf_noconst(ctx),
2824 &num, dat->stream.ctr);
0f113f3e
MC		 2825 else
2826 CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
6435f0f6
RL		 2827 EVP_CIPHER_CTX_iv_noconst(ctx),
2828 EVP_CIPHER_CTX_buf_noconst(ctx), &num,
2829 dat->block);
2830 EVP_CIPHER_CTX_set_num(ctx, num);
0f113f3e 2831 return 1;
d976f992
AP		 2832}
2833
0f113f3e
MC		 2834BLOCK_CIPHER_generic_pack(NID_aes, 128, 0)
2835 BLOCK_CIPHER_generic_pack(NID_aes, 192, 0)
2836 BLOCK_CIPHER_generic_pack(NID_aes, 256, 0)
bdaa5415
DSH		 2837
2838static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
0f113f3e 2839{
6435f0f6 2840 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,c);
273a0218
BE		 2841 if (gctx == NULL)
2842 return 0;
0f113f3e 2843 OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm));
6435f0f6 2844 if (gctx->iv != EVP_CIPHER_CTX_iv_noconst(c))
0f113f3e
MC		 2845 OPENSSL_free(gctx->iv);
2846 return 1;
2847}
bdaa5415
DSH		 2848
2849static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
0f113f3e 2850{
6435f0f6 2851 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,c);
0f113f3e
MC		 2852 switch (type) {
2853 case EVP_CTRL_INIT:
2854 gctx->key_set = 0;
2855 gctx->iv_set = 0;
c5307d9c
AP		 2856 gctx->ivlen = c->cipher->iv_len;
2857 gctx->iv = c->iv;
0f113f3e
MC		 2858 gctx->taglen = -1;
2859 gctx->iv_gen = 0;
2860 gctx->tls_aad_len = -1;
2861 return 1;
2862
e640fa02 2863 case EVP_CTRL_AEAD_SET_IVLEN:
0f113f3e
MC		 2864 if (arg <= 0)
2865 return 0;
2866 /* Allocate memory for IV if needed */
2867 if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen)) {
c5307d9c 2868 if (gctx->iv != c->iv)
0f113f3e 2869 OPENSSL_free(gctx->iv);
cdb10bae
RS		 2870 if ((gctx->iv = OPENSSL_malloc(arg)) == NULL) {
2871 EVPerr(EVP_F_AES_GCM_CTRL, ERR_R_MALLOC_FAILURE);
0f113f3e 2872 return 0;
cdb10bae 2873 }
0f113f3e
MC		 2874 }
2875 gctx->ivlen = arg;
2876 return 1;
2877
e640fa02 2878 case EVP_CTRL_AEAD_SET_TAG:
c5307d9c 2879 if (arg <= 0 || arg > 16 || c->encrypt)
0f113f3e 2880 return 0;
c5307d9c 2881 memcpy(c->buf, ptr, arg);
0f113f3e
MC		 2882 gctx->taglen = arg;
2883 return 1;
2884
e640fa02 2885 case EVP_CTRL_AEAD_GET_TAG:
c5307d9c 2886 if (arg <= 0 || arg > 16 || !c->encrypt
6435f0f6 2887 || gctx->taglen < 0)
0f113f3e 2888 return 0;
c5307d9c 2889 memcpy(ptr, c->buf, arg);
0f113f3e
MC		 2890 return 1;
2891
ecd1557f
BP		 2892 case EVP_CTRL_GET_IV:
2893 if (gctx->iv_gen != 1)
2894 return 0;
2895 if (gctx->ivlen != arg)
2896 return 0;
2897 memcpy(ptr, gctx->iv, arg);
2898 return 1;
2899
0f113f3e
MC		 2900 case EVP_CTRL_GCM_SET_IV_FIXED:
2901 /* Special case: -1 length restores whole IV */
2902 if (arg == -1) {
2903 memcpy(gctx->iv, ptr, gctx->ivlen);
2904 gctx->iv_gen = 1;
2905 return 1;
2906 }
2907 /*
2908 * Fixed field must be at least 4 bytes and invocation field at least
2909 * 8.
2910 */
2911 if ((arg < 4) || (gctx->ivlen - arg) < 8)
2912 return 0;
2913 if (arg)
2914 memcpy(gctx->iv, ptr, arg);
c5307d9c 2915 if (c->encrypt && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
16cfc2c9 2916 return 0;
0f113f3e
MC		 2917 gctx->iv_gen = 1;
2918 return 1;
2919
2920 case EVP_CTRL_GCM_IV_GEN:
2921 if (gctx->iv_gen == 0 || gctx->key_set == 0)
2922 return 0;
2923 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
2924 if (arg <= 0 || arg > gctx->ivlen)
2925 arg = gctx->ivlen;
2926 memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
2927 /*
2928 * Invocation field will be at least 8 bytes in size and so no need
2929 * to check wrap around or increment more than last 8 bytes.
2930 */
2931 ctr64_inc(gctx->iv + gctx->ivlen - 8);
2932 gctx->iv_set = 1;
2933 return 1;
2934
2935 case EVP_CTRL_GCM_SET_IV_INV:
c5307d9c 2936 if (gctx->iv_gen == 0 || gctx->key_set == 0 || c->encrypt)
0f113f3e
MC		 2937 return 0;
2938 memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
2939 CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
2940 gctx->iv_set = 1;
2941 return 1;
2942
2943 case EVP_CTRL_AEAD_TLS1_AAD:
2944 /* Save the AAD for later use */
c8269881 2945 if (arg != EVP_AEAD_TLS1_AAD_LEN)
0f113f3e 2946 return 0;
c5307d9c 2947 memcpy(c->buf, ptr, arg);
0f113f3e 2948 gctx->tls_aad_len = arg;
d6b34570 2949 gctx->tls_enc_records = 0;
0f113f3e 2950 {
c5307d9c 2951 unsigned int len = c->buf[arg - 2] << 8 | c->buf[arg - 1];
0f113f3e 2952 /* Correct length for explicit IV */
2198b3a5
AP		 2953 if (len < EVP_GCM_TLS_EXPLICIT_IV_LEN)
2954 return 0;
0f113f3e
MC		 2955 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
2956 /* If decrypting correct for tag too */
c5307d9c 2957 if (!c->encrypt) {
2198b3a5
AP		 2958 if (len < EVP_GCM_TLS_TAG_LEN)
2959 return 0;
0f113f3e 2960 len -= EVP_GCM_TLS_TAG_LEN;
2198b3a5 2961 }
c5307d9c
AP		 2962 c->buf[arg - 2] = len >> 8;
2963 c->buf[arg - 1] = len & 0xff;
0f113f3e
MC		 2964 }
2965 /* Extra padding: tag appended to record */
2966 return EVP_GCM_TLS_TAG_LEN;
2967
2968 case EVP_CTRL_COPY:
2969 {
2970 EVP_CIPHER_CTX *out = ptr;
6435f0f6 2971 EVP_AES_GCM_CTX *gctx_out = EVP_C_DATA(EVP_AES_GCM_CTX,out);
0f113f3e
MC		 2972 if (gctx->gcm.key) {
2973 if (gctx->gcm.key != &gctx->ks)
2974 return 0;
2975 gctx_out->gcm.key = &gctx_out->ks;
2976 }
c5307d9c
AP		 2977 if (gctx->iv == c->iv)
2978 gctx_out->iv = out->iv;
0f113f3e 2979 else {
cdb10bae
RS		 2980 if ((gctx_out->iv = OPENSSL_malloc(gctx->ivlen)) == NULL) {
2981 EVPerr(EVP_F_AES_GCM_CTRL, ERR_R_MALLOC_FAILURE);
0f113f3e 2982 return 0;
cdb10bae 2983 }
0f113f3e
MC		 2984 memcpy(gctx_out->iv, gctx->iv, gctx->ivlen);
2985 }
2986 return 1;
2987 }
2988
2989 default:
2990 return -1;
2991
2992 }
2993}
bdaa5415
DSH		 2994
2995static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 2996 const unsigned char *iv, int enc)
2997{
6435f0f6 2998 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
0f113f3e
MC		 2999 if (!iv && !key)
3000 return 1;
3001 if (key) {
3002 do {
5158c763 3003#ifdef HWAES_CAPABLE
0f113f3e 3004 if (HWAES_CAPABLE) {
c5307d9c 3005 HWAES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
0f113f3e
MC		 3006 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
3007 (block128_f) HWAES_encrypt);
5158c763 3008# ifdef HWAES_ctr32_encrypt_blocks
0f113f3e 3009 gctx->ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
5158c763 3010# else
0f113f3e 3011 gctx->ctr = NULL;
5158c763 3012# endif
0f113f3e
MC		 3013 break;
3014 } else
5158c763
MC		 3015#endif
3016#ifdef BSAES_CAPABLE
0f113f3e 3017 if (BSAES_CAPABLE) {
c5307d9c 3018 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
0f113f3e
MC		 3019 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
3020 (block128_f) AES_encrypt);
3021 gctx->ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
3022 break;
3023 } else
5158c763
MC		 3024#endif
3025#ifdef VPAES_CAPABLE
0f113f3e 3026 if (VPAES_CAPABLE) {
c5307d9c 3027 vpaes_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
0f113f3e
MC		 3028 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
3029 (block128_f) vpaes_encrypt);
3030 gctx->ctr = NULL;
3031 break;
3032 } else
5158c763 3033#endif
0f113f3e
MC		 3034 (void)0; /* terminate potentially open 'else' */
3035
c5307d9c 3036 AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
0f113f3e
MC		 3037 CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
3038 (block128_f) AES_encrypt);
5158c763 3039#ifdef AES_CTR_ASM
0f113f3e 3040 gctx->ctr = (ctr128_f) AES_ctr32_encrypt;
5158c763 3041#else
0f113f3e 3042 gctx->ctr = NULL;
5158c763 3043#endif
0f113f3e
MC		 3044 } while (0);
3045
3046 /*
3047 * If we have an iv can set it directly, otherwise use saved IV.
3048 */
3049 if (iv == NULL && gctx->iv_set)
3050 iv = gctx->iv;
3051 if (iv) {
3052 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
3053 gctx->iv_set = 1;
3054 }
3055 gctx->key_set = 1;
3056 } else {
3057 /* If key set use IV, otherwise copy */
3058 if (gctx->key_set)
3059 CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
3060 else
3061 memcpy(gctx->iv, iv, gctx->ivlen);
3062 gctx->iv_set = 1;
3063 gctx->iv_gen = 0;
3064 }
3065 return 1;
3066}
3067
3068/*
3069 * Handle TLS GCM packet format. This consists of the last portion of the IV
28dd49fa
DSH		 3070 * followed by the payload and finally the tag. On encrypt generate IV,
3071 * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
3072 * and verify tag.
3073 */
3074
3075static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e
MC		 3076 const unsigned char *in, size_t len)
3077{
6435f0f6 3078 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
0f113f3e
MC		 3079 int rv = -1;
3080 /* Encrypt/decrypt must be performed in place */
3081 if (out != in
3082 || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
3083 return -1;
df443918 3084
d6b34570
P		 3085 /*
3086 * Check for too many keys as per FIPS 140-2 IG A.5 "Key/IV Pair Uniqueness
3087 * Requirements from SP 800-38D". The requirements is for one party to the
3088 * communication to fail after 2^64 - 1 keys. We do this on the encrypting
3089 * side only.
3090 */
3091 if (ctx->encrypt && ++gctx->tls_enc_records == 0) {
3092 EVPerr(EVP_F_AES_GCM_TLS_CIPHER, EVP_R_TOO_MANY_RECORDS);
3093 goto err;
3094 }
3095
0f113f3e
MC		 3096 /*
3097 * Set IV from start of buffer or generate IV and write to start of
3098 * buffer.
3099 */
c5307d9c
AP		 3100 if (EVP_CIPHER_CTX_ctrl(ctx, ctx->encrypt ? EVP_CTRL_GCM_IV_GEN
3101 : EVP_CTRL_GCM_SET_IV_INV,
0f113f3e
MC		 3102 EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
3103 goto err;
3104 /* Use saved AAD */
c5307d9c 3105 if (CRYPTO_gcm128_aad(&gctx->gcm, ctx->buf, gctx->tls_aad_len))
0f113f3e
MC		 3106 goto err;
3107 /* Fix buffer and length to point to payload */
3108 in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
3109 out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
3110 len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
c5307d9c 3111 if (ctx->encrypt) {
0f113f3e
MC		 3112 /* Encrypt payload */
3113 if (gctx->ctr) {
3114 size_t bulk = 0;
5158c763 3115#if defined(AES_GCM_ASM)
0f113f3e
MC		 3116 if (len >= 32 && AES_GCM_ASM(gctx)) {
3117 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
3118 return -1;
3119
3120 bulk = AES_gcm_encrypt(in, out, len,
3121 gctx->gcm.key,
3122 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3123 gctx->gcm.len.u[1] += bulk;
3124 }
5158c763 3125#endif
0f113f3e
MC		 3126 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
3127 in + bulk,
3128 out + bulk,
3129 len - bulk, gctx->ctr))
3130 goto err;
3131 } else {
3132 size_t bulk = 0;
5158c763 3133#if defined(AES_GCM_ASM2)
0f113f3e
MC		 3134 if (len >= 32 && AES_GCM_ASM2(gctx)) {
3135 if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
3136 return -1;
3137
3138 bulk = AES_gcm_encrypt(in, out, len,
3139 gctx->gcm.key,
3140 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3141 gctx->gcm.len.u[1] += bulk;
3142 }
5158c763 3143#endif
0f113f3e
MC		 3144 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
3145 in + bulk, out + bulk, len - bulk))
3146 goto err;
3147 }
3148 out += len;
3149 /* Finally write tag */
3150 CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
3151 rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
3152 } else {
3153 /* Decrypt */
3154 if (gctx->ctr) {
3155 size_t bulk = 0;
5158c763 3156#if defined(AES_GCM_ASM)
0f113f3e
MC		 3157 if (len >= 16 && AES_GCM_ASM(gctx)) {
3158 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
3159 return -1;
3160
3161 bulk = AES_gcm_decrypt(in, out, len,
3162 gctx->gcm.key,
3163 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3164 gctx->gcm.len.u[1] += bulk;
3165 }
5158c763 3166#endif
0f113f3e
MC		 3167 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
3168 in + bulk,
3169 out + bulk,
3170 len - bulk, gctx->ctr))
3171 goto err;
3172 } else {
3173 size_t bulk = 0;
5158c763 3174#if defined(AES_GCM_ASM2)
0f113f3e
MC		 3175 if (len >= 16 && AES_GCM_ASM2(gctx)) {
3176 if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
3177 return -1;
3178
3179 bulk = AES_gcm_decrypt(in, out, len,
3180 gctx->gcm.key,
3181 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3182 gctx->gcm.len.u[1] += bulk;
3183 }
5158c763 3184#endif
0f113f3e
MC		 3185 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
3186 in + bulk, out + bulk, len - bulk))
3187 goto err;
3188 }
3189 /* Retrieve tag */
c5307d9c 3190 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, EVP_GCM_TLS_TAG_LEN);
0f113f3e 3191 /* If tag mismatch wipe buffer */
c5307d9c 3192 if (CRYPTO_memcmp(ctx->buf, in + len, EVP_GCM_TLS_TAG_LEN)) {
0f113f3e
MC		 3193 OPENSSL_cleanse(out, len);
3194 goto err;
3195 }
3196 rv = len;
3197 }
3198
3199 err:
3200 gctx->iv_set = 0;
3201 gctx->tls_aad_len = -1;
3202 return rv;
3203}
28dd49fa 3204
17f121de 3205static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e
MC		 3206 const unsigned char *in, size_t len)
3207{
6435f0f6 3208 EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
0f113f3e
MC		 3209 /* If not set up, return error */
3210 if (!gctx->key_set)
3211 return -1;
3212
3213 if (gctx->tls_aad_len >= 0)
3214 return aes_gcm_tls_cipher(ctx, out, in, len);
3215
3216 if (!gctx->iv_set)
3217 return -1;
3218 if (in) {
3219 if (out == NULL) {
3220 if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
3221 return -1;
c5307d9c 3222 } else if (ctx->encrypt) {
0f113f3e
MC		 3223 if (gctx->ctr) {
3224 size_t bulk = 0;
5158c763 3225#if defined(AES_GCM_ASM)
0f113f3e
MC		 3226 if (len >= 32 && AES_GCM_ASM(gctx)) {
3227 size_t res = (16 - gctx->gcm.mres) % 16;
3228
3229 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
3230 return -1;
3231
3232 bulk = AES_gcm_encrypt(in + res,
3233 out + res, len - res,
3234 gctx->gcm.key, gctx->gcm.Yi.c,
3235 gctx->gcm.Xi.u);
3236 gctx->gcm.len.u[1] += bulk;
3237 bulk += res;
3238 }
5158c763 3239#endif
0f113f3e
MC		 3240 if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
3241 in + bulk,
3242 out + bulk,
3243 len - bulk, gctx->ctr))
3244 return -1;
3245 } else {
3246 size_t bulk = 0;
5158c763 3247#if defined(AES_GCM_ASM2)
0f113f3e
MC		 3248 if (len >= 32 && AES_GCM_ASM2(gctx)) {
3249 size_t res = (16 - gctx->gcm.mres) % 16;
3250
3251 if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
3252 return -1;
3253
3254 bulk = AES_gcm_encrypt(in + res,
3255 out + res, len - res,
3256 gctx->gcm.key, gctx->gcm.Yi.c,
3257 gctx->gcm.Xi.u);
3258 gctx->gcm.len.u[1] += bulk;
3259 bulk += res;
3260 }
5158c763 3261#endif
0f113f3e
MC		 3262 if (CRYPTO_gcm128_encrypt(&gctx->gcm,
3263 in + bulk, out + bulk, len - bulk))
3264 return -1;
3265 }
3266 } else {
3267 if (gctx->ctr) {
3268 size_t bulk = 0;
5158c763 3269#if defined(AES_GCM_ASM)
0f113f3e
MC		 3270 if (len >= 16 && AES_GCM_ASM(gctx)) {
3271 size_t res = (16 - gctx->gcm.mres) % 16;
3272
3273 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
3274 return -1;
3275
3276 bulk = AES_gcm_decrypt(in + res,
3277 out + res, len - res,
3278 gctx->gcm.key,
3279 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3280 gctx->gcm.len.u[1] += bulk;
3281 bulk += res;
3282 }
5158c763 3283#endif
0f113f3e
MC		 3284 if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
3285 in + bulk,
3286 out + bulk,
3287 len - bulk, gctx->ctr))
3288 return -1;
3289 } else {
3290 size_t bulk = 0;
5158c763 3291#if defined(AES_GCM_ASM2)
0f113f3e
MC		 3292 if (len >= 16 && AES_GCM_ASM2(gctx)) {
3293 size_t res = (16 - gctx->gcm.mres) % 16;
3294
3295 if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
3296 return -1;
3297
3298 bulk = AES_gcm_decrypt(in + res,
3299 out + res, len - res,
3300 gctx->gcm.key,
3301 gctx->gcm.Yi.c, gctx->gcm.Xi.u);
3302 gctx->gcm.len.u[1] += bulk;
3303 bulk += res;
3304 }
5158c763 3305#endif
0f113f3e
MC		 3306 if (CRYPTO_gcm128_decrypt(&gctx->gcm,
3307 in + bulk, out + bulk, len - bulk))
3308 return -1;
3309 }
3310 }
3311 return len;
3312 } else {
c5307d9c 3313 if (!ctx->encrypt) {
0f113f3e
MC		 3314 if (gctx->taglen < 0)
3315 return -1;
c5307d9c 3316 if (CRYPTO_gcm128_finish(&gctx->gcm, ctx->buf, gctx->taglen) != 0)
0f113f3e
MC		 3317 return -1;
3318 gctx->iv_set = 0;
3319 return 0;
3320 }
c5307d9c 3321 CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, 16);
0f113f3e
MC		 3322 gctx->taglen = 16;
3323 /* Don't reuse the IV */
3324 gctx->iv_set = 0;
3325 return 0;
3326 }
3327
3328}
3329
5158c763 3330#define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
0f113f3e
MC		 3331 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
3332 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
3333 | EVP_CIPH_CUSTOM_COPY)
3334
3335BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, gcm, GCM,
3336 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3337 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, gcm, GCM,
3338 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3339 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, gcm, GCM,
3340 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
32a2d8dd
DSH		 3341
3342static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
0f113f3e 3343{
6435f0f6 3344 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,c);
0f113f3e
MC		 3345 if (type == EVP_CTRL_COPY) {
3346 EVP_CIPHER_CTX *out = ptr;
6435f0f6 3347 EVP_AES_XTS_CTX *xctx_out = EVP_C_DATA(EVP_AES_XTS_CTX,out);
0f113f3e
MC		 3348 if (xctx->xts.key1) {
3349 if (xctx->xts.key1 != &xctx->ks1)
3350 return 0;
3351 xctx_out->xts.key1 = &xctx_out->ks1;
3352 }
3353 if (xctx->xts.key2) {
3354 if (xctx->xts.key2 != &xctx->ks2)
3355 return 0;
3356 xctx_out->xts.key2 = &xctx_out->ks2;
3357 }
3358 return 1;
3359 } else if (type != EVP_CTRL_INIT)
3360 return -1;
3361 /* key1 and key2 are used as an indicator both key and IV are set */
3362 xctx->xts.key1 = NULL;
3363 xctx->xts.key2 = NULL;
3364 return 1;
3365}
32a2d8dd
DSH		 3366
3367static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 3368 const unsigned char *iv, int enc)
3369{
6435f0f6 3370 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
0f113f3e
MC		 3371 if (!iv && !key)
3372 return 1;
3373
3374 if (key)
3375 do {
5158c763 3376#ifdef AES_XTS_ASM
0f113f3e 3377 xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
5158c763 3378#else
0f113f3e 3379 xctx->stream = NULL;
5158c763 3380#endif
0f113f3e 3381 /* key_len is two AES keys */
5158c763 3382#ifdef HWAES_CAPABLE
0f113f3e
MC		 3383 if (HWAES_CAPABLE) {
3384 if (enc) {
6435f0f6
RL		 3385 HWAES_set_encrypt_key(key,
3386 EVP_CIPHER_CTX_key_length(ctx) * 4,
0f113f3e
MC		 3387 &xctx->ks1.ks);
3388 xctx->xts.block1 = (block128_f) HWAES_encrypt;
46f047d7
AP		 3389# ifdef HWAES_xts_encrypt
3390 xctx->stream = HWAES_xts_encrypt;
3391# endif
0f113f3e 3392 } else {
6435f0f6
RL		 3393 HWAES_set_decrypt_key(key,
3394 EVP_CIPHER_CTX_key_length(ctx) * 4,
0f113f3e
MC		 3395 &xctx->ks1.ks);
3396 xctx->xts.block1 = (block128_f) HWAES_decrypt;
46f047d7
AP		 3397# ifdef HWAES_xts_decrypt
3398 xctx->stream = HWAES_xts_decrypt;
3399#endif
0f113f3e
MC		 3400 }
3401
6435f0f6
RL		 3402 HWAES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
3403 EVP_CIPHER_CTX_key_length(ctx) * 4,
3404 &xctx->ks2.ks);
0f113f3e
MC		 3405 xctx->xts.block2 = (block128_f) HWAES_encrypt;
3406
3407 xctx->xts.key1 = &xctx->ks1;
3408 break;
3409 } else
5158c763
MC		 3410#endif
3411#ifdef BSAES_CAPABLE
0f113f3e
MC		 3412 if (BSAES_CAPABLE)
3413 xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
3414 else
5158c763
MC		 3415#endif
3416#ifdef VPAES_CAPABLE
0f113f3e
MC		 3417 if (VPAES_CAPABLE) {
3418 if (enc) {
6435f0f6
RL		 3419 vpaes_set_encrypt_key(key,
3420 EVP_CIPHER_CTX_key_length(ctx) * 4,
0f113f3e
MC		 3421 &xctx->ks1.ks);
3422 xctx->xts.block1 = (block128_f) vpaes_encrypt;
3423 } else {
6435f0f6
RL		 3424 vpaes_set_decrypt_key(key,
3425 EVP_CIPHER_CTX_key_length(ctx) * 4,
0f113f3e
MC		 3426 &xctx->ks1.ks);
3427 xctx->xts.block1 = (block128_f) vpaes_decrypt;
3428 }
3429
6435f0f6
RL		 3430 vpaes_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
3431 EVP_CIPHER_CTX_key_length(ctx) * 4,
3432 &xctx->ks2.ks);
0f113f3e
MC		 3433 xctx->xts.block2 = (block128_f) vpaes_encrypt;
3434
3435 xctx->xts.key1 = &xctx->ks1;
3436 break;
3437 } else
5158c763 3438#endif
0f113f3e
MC		 3439 (void)0; /* terminate potentially open 'else' */
3440
3441 if (enc) {
6435f0f6
RL		 3442 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
3443 &xctx->ks1.ks);
0f113f3e
MC		 3444 xctx->xts.block1 = (block128_f) AES_encrypt;
3445 } else {
6435f0f6
RL		 3446 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
3447 &xctx->ks1.ks);
0f113f3e
MC		 3448 xctx->xts.block1 = (block128_f) AES_decrypt;
3449 }
3450
6435f0f6
RL		 3451 AES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
3452 EVP_CIPHER_CTX_key_length(ctx) * 4,
3453 &xctx->ks2.ks);
0f113f3e
MC		 3454 xctx->xts.block2 = (block128_f) AES_encrypt;
3455
3456 xctx->xts.key1 = &xctx->ks1;
3457 } while (0);
3458
3459 if (iv) {
3460 xctx->xts.key2 = &xctx->ks2;
6435f0f6 3461 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 16);
0f113f3e
MC		 3462 }
3463
3464 return 1;
3465}
32a2d8dd 3466
17f121de 3467static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e
MC		 3468 const unsigned char *in, size_t len)
3469{
6435f0f6 3470 EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
95eda4f0
P		 3471
3472 if (xctx->xts.key1 == NULL
3473 || xctx->xts.key2 == NULL
3474 || out == NULL
3475 || in == NULL
3476 || len < AES_BLOCK_SIZE)
0f113f3e 3477 return 0;
95eda4f0
P		 3478
3479 /*
3480 * Verify that the two keys are different.
3481 *
3482 * This addresses the vulnerability described in Rogaway's September 2004
3483 * paper (http://web.cs.ucdavis.edu/~rogaway/papers/offsets.pdf):
3484 * "Efficient Instantiations of Tweakable Blockciphers and Refinements
3485 * to Modes OCB and PMAC".
3486 *
3487 * FIPS 140-2 IG A.9 XTS-AES Key Generation Requirements states that:
3488 * "The check for Key_1 != Key_2 shall be done at any place BEFORE
3489 * using the keys in the XTS-AES algorithm to process data with them."
3490 */
3491 if (CRYPTO_memcmp(xctx->xts.key1, xctx->xts.key2,
3492 EVP_CIPHER_CTX_key_length(ctx) / 2) == 0)
0f113f3e 3493 return 0;
95eda4f0 3494
0f113f3e
MC		 3495 if (xctx->stream)
3496 (*xctx->stream) (in, out, len,
6435f0f6
RL		 3497 xctx->xts.key1, xctx->xts.key2,
3498 EVP_CIPHER_CTX_iv_noconst(ctx));
3499 else if (CRYPTO_xts128_encrypt(&xctx->xts, EVP_CIPHER_CTX_iv_noconst(ctx),
3500 in, out, len,
3501 EVP_CIPHER_CTX_encrypting(ctx)))
0f113f3e
MC		 3502 return 0;
3503 return 1;
3504}
3505
5158c763 3506#define aes_xts_cleanup NULL
0f113f3e 3507
5158c763 3508#define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
0f113f3e
MC		 3509 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
3510 | EVP_CIPH_CUSTOM_COPY)
3511
3512BLOCK_CIPHER_custom(NID_aes, 128, 1, 16, xts, XTS, XTS_FLAGS)
3513 BLOCK_CIPHER_custom(NID_aes, 256, 1, 16, xts, XTS, XTS_FLAGS)
23916810
DSH		 3514
3515static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
0f113f3e 3516{
6435f0f6 3517 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,c);
0f113f3e
MC		 3518 switch (type) {
3519 case EVP_CTRL_INIT:
3520 cctx->key_set = 0;
3521 cctx->iv_set = 0;
3522 cctx->L = 8;
3523 cctx->M = 12;
3524 cctx->tag_set = 0;
3525 cctx->len_set = 0;
e75c5a79
DSH		 3526 cctx->tls_aad_len = -1;
3527 return 1;
3528
3529 case EVP_CTRL_AEAD_TLS1_AAD:
3530 /* Save the AAD for later use */
3531 if (arg != EVP_AEAD_TLS1_AAD_LEN)
3532 return 0;
6435f0f6 3533 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
e75c5a79
DSH		 3534 cctx->tls_aad_len = arg;
3535 {
6435f0f6
RL		 3536 uint16_t len =
3537 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] << 8
3538 | EVP_CIPHER_CTX_buf_noconst(c)[arg - 1];
e75c5a79 3539 /* Correct length for explicit IV */
2198b3a5
AP		 3540 if (len < EVP_CCM_TLS_EXPLICIT_IV_LEN)
3541 return 0;
e75c5a79
DSH		 3542 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN;
3543 /* If decrypting correct for tag too */
2198b3a5
AP		 3544 if (!EVP_CIPHER_CTX_encrypting(c)) {
3545 if (len < cctx->M)
3546 return 0;
e75c5a79 3547 len -= cctx->M;
2198b3a5 3548 }
6435f0f6
RL		 3549 EVP_CIPHER_CTX_buf_noconst(c)[arg - 2] = len >> 8;
3550 EVP_CIPHER_CTX_buf_noconst(c)[arg - 1] = len & 0xff;
e75c5a79
DSH		 3551 }
3552 /* Extra padding: tag appended to record */
3553 return cctx->M;
3554
3555 case EVP_CTRL_CCM_SET_IV_FIXED:
3556 /* Sanity check length */
3557 if (arg != EVP_CCM_TLS_FIXED_IV_LEN)
3558 return 0;
3559 /* Just copy to first part of IV */
6435f0f6 3560 memcpy(EVP_CIPHER_CTX_iv_noconst(c), ptr, arg);
0f113f3e
MC		 3561 return 1;
3562
e640fa02 3563 case EVP_CTRL_AEAD_SET_IVLEN:
0f113f3e 3564 arg = 15 - arg;
018fcbec 3565 /* fall thru */
0f113f3e
MC		 3566 case EVP_CTRL_CCM_SET_L:
3567 if (arg < 2 || arg > 8)
3568 return 0;
3569 cctx->L = arg;
3570 return 1;
3571
e640fa02 3572 case EVP_CTRL_AEAD_SET_TAG:
0f113f3e
MC		 3573 if ((arg & 1) || arg < 4 || arg > 16)
3574 return 0;
6435f0f6 3575 if (EVP_CIPHER_CTX_encrypting(c) && ptr)
0f113f3e
MC		 3576 return 0;
3577 if (ptr) {
3578 cctx->tag_set = 1;
6435f0f6 3579 memcpy(EVP_CIPHER_CTX_buf_noconst(c), ptr, arg);
0f113f3e
MC		 3580 }
3581 cctx->M = arg;
3582 return 1;
3583
e640fa02 3584 case EVP_CTRL_AEAD_GET_TAG:
6435f0f6 3585 if (!EVP_CIPHER_CTX_encrypting(c) || !cctx->tag_set)
0f113f3e
MC		 3586 return 0;
3587 if (!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg))
3588 return 0;
3589 cctx->tag_set = 0;
3590 cctx->iv_set = 0;
3591 cctx->len_set = 0;
3592 return 1;
3593
3594 case EVP_CTRL_COPY:
3595 {
3596 EVP_CIPHER_CTX *out = ptr;
6435f0f6 3597 EVP_AES_CCM_CTX *cctx_out = EVP_C_DATA(EVP_AES_CCM_CTX,out);
0f113f3e
MC		 3598 if (cctx->ccm.key) {
3599 if (cctx->ccm.key != &cctx->ks)
3600 return 0;
3601 cctx_out->ccm.key = &cctx_out->ks;
3602 }
3603 return 1;
3604 }
3605
3606 default:
3607 return -1;
3608
3609 }
3610}
23916810
DSH		 3611
3612static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 3613 const unsigned char *iv, int enc)
3614{
6435f0f6 3615 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
0f113f3e
MC		 3616 if (!iv && !key)
3617 return 1;
3618 if (key)
3619 do {
5158c763 3620#ifdef HWAES_CAPABLE
0f113f3e 3621 if (HWAES_CAPABLE) {
6435f0f6
RL		 3622 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3623 &cctx->ks.ks);
0f113f3e
MC		 3624
3625 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
3626 &cctx->ks, (block128_f) HWAES_encrypt);
3627 cctx->str = NULL;
3628 cctx->key_set = 1;
3629 break;
3630 } else
5158c763
MC		 3631#endif
3632#ifdef VPAES_CAPABLE
0f113f3e 3633 if (VPAES_CAPABLE) {
6435f0f6
RL		 3634 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3635 &cctx->ks.ks);
0f113f3e
MC		 3636 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
3637 &cctx->ks, (block128_f) vpaes_encrypt);
3638 cctx->str = NULL;
3639 cctx->key_set = 1;
3640 break;
3641 }
5158c763 3642#endif
6435f0f6
RL		 3643 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3644 &cctx->ks.ks);
0f113f3e
MC		 3645 CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
3646 &cctx->ks, (block128_f) AES_encrypt);
3647 cctx->str = NULL;
3648 cctx->key_set = 1;
3649 } while (0);
3650 if (iv) {
6435f0f6 3651 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, 15 - cctx->L);
0f113f3e
MC		 3652 cctx->iv_set = 1;
3653 }
3654 return 1;
3655}
23916810 3656
e75c5a79
DSH		 3657static int aes_ccm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
3658 const unsigned char *in, size_t len)
3659{
6435f0f6 3660 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
e75c5a79
DSH		 3661 CCM128_CONTEXT *ccm = &cctx->ccm;
3662 /* Encrypt/decrypt must be performed in place */
3663 if (out != in || len < (EVP_CCM_TLS_EXPLICIT_IV_LEN + (size_t)cctx->M))
3664 return -1;
3665 /* If encrypting set explicit IV from sequence number (start of AAD) */
6435f0f6
RL		 3666 if (EVP_CIPHER_CTX_encrypting(ctx))
3667 memcpy(out, EVP_CIPHER_CTX_buf_noconst(ctx),
3668 EVP_CCM_TLS_EXPLICIT_IV_LEN);
e75c5a79 3669 /* Get rest of IV from explicit IV */
6435f0f6
RL		 3670 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx) + EVP_CCM_TLS_FIXED_IV_LEN, in,
3671 EVP_CCM_TLS_EXPLICIT_IV_LEN);
e75c5a79
DSH		 3672 /* Correct length value */
3673 len -= EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
6435f0f6
RL		 3674 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx), 15 - cctx->L,
3675 len))
e75c5a79
DSH		 3676 return -1;
3677 /* Use saved AAD */
6435f0f6 3678 CRYPTO_ccm128_aad(ccm, EVP_CIPHER_CTX_buf_noconst(ctx), cctx->tls_aad_len);
e75c5a79
DSH		 3679 /* Fix buffer to point to payload */
3680 in += EVP_CCM_TLS_EXPLICIT_IV_LEN;
3681 out += EVP_CCM_TLS_EXPLICIT_IV_LEN;
6435f0f6 3682 if (EVP_CIPHER_CTX_encrypting(ctx)) {
e75c5a79
DSH		 3683 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
3684 cctx->str) :
3685 CRYPTO_ccm128_encrypt(ccm, in, out, len))
3686 return -1;
3687 if (!CRYPTO_ccm128_tag(ccm, out + len, cctx->M))
3688 return -1;
3689 return len + EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
3690 } else {
3691 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
3692 cctx->str) :
3693 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
3694 unsigned char tag[16];
3695 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
3696 if (!CRYPTO_memcmp(tag, in + len, cctx->M))
3697 return len;
3698 }
3699 }
3700 OPENSSL_cleanse(out, len);
3701 return -1;
3702 }
3703}
3704
17f121de 3705static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e
MC		 3706 const unsigned char *in, size_t len)
3707{
6435f0f6 3708 EVP_AES_CCM_CTX *cctx = EVP_C_DATA(EVP_AES_CCM_CTX,ctx);
0f113f3e
MC		 3709 CCM128_CONTEXT *ccm = &cctx->ccm;
3710 /* If not set up, return error */
e75c5a79
DSH		 3711 if (!cctx->key_set)
3712 return -1;
3713
3714 if (cctx->tls_aad_len >= 0)
3715 return aes_ccm_tls_cipher(ctx, out, in, len);
3716
197421b1
DSH		 3717 /* EVP_*Final() doesn't return any data */
3718 if (in == NULL && out != NULL)
3719 return 0;
3720
e75c5a79 3721 if (!cctx->iv_set)
0f113f3e 3722 return -1;
e75c5a79 3723
6435f0f6 3724 if (!EVP_CIPHER_CTX_encrypting(ctx) && !cctx->tag_set)
0f113f3e
MC		 3725 return -1;
3726 if (!out) {
3727 if (!in) {
6435f0f6
RL		 3728 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx),
3729 15 - cctx->L, len))
0f113f3e
MC		 3730 return -1;
3731 cctx->len_set = 1;
3732 return len;
3733 }
3734 /* If have AAD need message length */
3735 if (!cctx->len_set && len)
3736 return -1;
3737 CRYPTO_ccm128_aad(ccm, in, len);
3738 return len;
3739 }
0f113f3e
MC		 3740 /* If not set length yet do it */
3741 if (!cctx->len_set) {
6435f0f6
RL		 3742 if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx),
3743 15 - cctx->L, len))
0f113f3e
MC		 3744 return -1;
3745 cctx->len_set = 1;
3746 }
6435f0f6 3747 if (EVP_CIPHER_CTX_encrypting(ctx)) {
0f113f3e
MC		 3748 if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
3749 cctx->str) :
3750 CRYPTO_ccm128_encrypt(ccm, in, out, len))
3751 return -1;
3752 cctx->tag_set = 1;
3753 return len;
3754 } else {
3755 int rv = -1;
3756 if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
3757 cctx->str) :
3758 !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
3759 unsigned char tag[16];
3760 if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
6435f0f6
RL		 3761 if (!CRYPTO_memcmp(tag, EVP_CIPHER_CTX_buf_noconst(ctx),
3762 cctx->M))
0f113f3e
MC		 3763 rv = len;
3764 }
3765 }
3766 if (rv == -1)
3767 OPENSSL_cleanse(out, len);
3768 cctx->iv_set = 0;
3769 cctx->tag_set = 0;
3770 cctx->len_set = 0;
3771 return rv;
3772 }
0f113f3e
MC		 3773}
3774
5158c763 3775#define aes_ccm_cleanup NULL
0f113f3e 3776
e75c5a79
DSH		 3777BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, ccm, CCM,
3778 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3779 BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, ccm, CCM,
3780 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
3781 BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, ccm, CCM,
3782 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
0f113f3e
MC		 3783
3784typedef struct {
3785 union {
3786 double align;
3787 AES_KEY ks;
3788 } ks;
3789 /* Indicates if IV has been set */
3790 unsigned char *iv;
3791} EVP_AES_WRAP_CTX;
97cf1f6c
DSH		 3792
3793static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 3794 const unsigned char *iv, int enc)
3795{
6435f0f6 3796 EVP_AES_WRAP_CTX *wctx = EVP_C_DATA(EVP_AES_WRAP_CTX,ctx);
0f113f3e
MC		 3797 if (!iv && !key)
3798 return 1;
3799 if (key) {
6435f0f6
RL		 3800 if (EVP_CIPHER_CTX_encrypting(ctx))
3801 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3802 &wctx->ks.ks);
0f113f3e 3803 else
6435f0f6
RL		 3804 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
3805 &wctx->ks.ks);
0f113f3e
MC		 3806 if (!iv)
3807 wctx->iv = NULL;
3808 }
3809 if (iv) {
6435f0f6
RL		 3810 memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), iv, EVP_CIPHER_CTX_iv_length(ctx));
3811 wctx->iv = EVP_CIPHER_CTX_iv_noconst(ctx);
0f113f3e
MC		 3812 }
3813 return 1;
3814}
97cf1f6c
DSH		 3815
3816static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e
MC		 3817 const unsigned char *in, size_t inlen)
3818{
6435f0f6 3819 EVP_AES_WRAP_CTX *wctx = EVP_C_DATA(EVP_AES_WRAP_CTX,ctx);
0f113f3e
MC		 3820 size_t rv;
3821 /* AES wrap with padding has IV length of 4, without padding 8 */
3822 int pad = EVP_CIPHER_CTX_iv_length(ctx) == 4;
3823 /* No final operation so always return zero length */
3824 if (!in)
3825 return 0;
3826 /* Input length must always be non-zero */
3827 if (!inlen)
3828 return -1;
3829 /* If decrypting need at least 16 bytes and multiple of 8 */
6435f0f6 3830 if (!EVP_CIPHER_CTX_encrypting(ctx) && (inlen < 16 || inlen & 0x7))
0f113f3e
MC		 3831 return -1;
3832 /* If not padding input must be multiple of 8 */
3833 if (!pad && inlen & 0x7)
3834 return -1;
7141ba31
MC		 3835 if (is_partially_overlapping(out, in, inlen)) {
3836 EVPerr(EVP_F_AES_WRAP_CIPHER, EVP_R_PARTIALLY_OVERLAPPING);
3837 return 0;
3838 }
0f113f3e 3839 if (!out) {
6435f0f6 3840 if (EVP_CIPHER_CTX_encrypting(ctx)) {
0f113f3e
MC		 3841 /* If padding round up to multiple of 8 */
3842 if (pad)
3843 inlen = (inlen + 7) / 8 * 8;
3844 /* 8 byte prefix */
3845 return inlen + 8;
3846 } else {
3847 /*
3848 * If not padding output will be exactly 8 bytes smaller than
3849 * input. If padding it will be at least 8 bytes smaller but we
3850 * don't know how much.
3851 */
3852 return inlen - 8;
3853 }
3854 }
3855 if (pad) {
6435f0f6 3856 if (EVP_CIPHER_CTX_encrypting(ctx))
0f113f3e
MC		 3857 rv = CRYPTO_128_wrap_pad(&wctx->ks.ks, wctx->iv,
3858 out, in, inlen,
3859 (block128_f) AES_encrypt);
3860 else
3861 rv = CRYPTO_128_unwrap_pad(&wctx->ks.ks, wctx->iv,
3862 out, in, inlen,
3863 (block128_f) AES_decrypt);
3864 } else {
6435f0f6 3865 if (EVP_CIPHER_CTX_encrypting(ctx))
0f113f3e
MC		 3866 rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv,
3867 out, in, inlen, (block128_f) AES_encrypt);
3868 else
3869 rv = CRYPTO_128_unwrap(&wctx->ks.ks, wctx->iv,
3870 out, in, inlen, (block128_f) AES_decrypt);
3871 }
3872 return rv ? (int)rv : -1;
3873}
3874
5158c763 3875#define WRAP_FLAGS (EVP_CIPH_WRAP_MODE \
0f113f3e
MC		 3876 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
3877 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
97cf1f6c
DSH		 3878
3879static const EVP_CIPHER aes_128_wrap = {
0f113f3e
MC		 3880 NID_id_aes128_wrap,
3881 8, 16, 8, WRAP_FLAGS,
3882 aes_wrap_init_key, aes_wrap_cipher,
3883 NULL,
3884 sizeof(EVP_AES_WRAP_CTX),
3885 NULL, NULL, NULL, NULL
3886};
97cf1f6c
DSH		 3887
3888const EVP_CIPHER *EVP_aes_128_wrap(void)
0f113f3e
MC		 3889{
3890 return &aes_128_wrap;
3891}
97cf1f6c
DSH		 3892
3893static const EVP_CIPHER aes_192_wrap = {
0f113f3e
MC		 3894 NID_id_aes192_wrap,
3895 8, 24, 8, WRAP_FLAGS,
3896 aes_wrap_init_key, aes_wrap_cipher,
3897 NULL,
3898 sizeof(EVP_AES_WRAP_CTX),
3899 NULL, NULL, NULL, NULL
3900};
97cf1f6c
DSH		 3901
3902const EVP_CIPHER *EVP_aes_192_wrap(void)
0f113f3e
MC		 3903{
3904 return &aes_192_wrap;
3905}
97cf1f6c
DSH		 3906
3907static const EVP_CIPHER aes_256_wrap = {
0f113f3e
MC		 3908 NID_id_aes256_wrap,
3909 8, 32, 8, WRAP_FLAGS,
3910 aes_wrap_init_key, aes_wrap_cipher,
3911 NULL,
3912 sizeof(EVP_AES_WRAP_CTX),
3913 NULL, NULL, NULL, NULL
3914};
97cf1f6c
DSH		 3915
3916const EVP_CIPHER *EVP_aes_256_wrap(void)
0f113f3e
MC		 3917{
3918 return &aes_256_wrap;
3919}
97cf1f6c 3920
d31fed73 3921static const EVP_CIPHER aes_128_wrap_pad = {
0f113f3e
MC		 3922 NID_id_aes128_wrap_pad,
3923 8, 16, 4, WRAP_FLAGS,
3924 aes_wrap_init_key, aes_wrap_cipher,
3925 NULL,
3926 sizeof(EVP_AES_WRAP_CTX),
3927 NULL, NULL, NULL, NULL
3928};
d31fed73
DSH		 3929
3930const EVP_CIPHER *EVP_aes_128_wrap_pad(void)
0f113f3e
MC		 3931{
3932 return &aes_128_wrap_pad;
3933}
d31fed73
DSH		 3934
3935static const EVP_CIPHER aes_192_wrap_pad = {
0f113f3e
MC		 3936 NID_id_aes192_wrap_pad,
3937 8, 24, 4, WRAP_FLAGS,
3938 aes_wrap_init_key, aes_wrap_cipher,
3939 NULL,
3940 sizeof(EVP_AES_WRAP_CTX),
3941 NULL, NULL, NULL, NULL
3942};
d31fed73
DSH		 3943
3944const EVP_CIPHER *EVP_aes_192_wrap_pad(void)
0f113f3e
MC		 3945{
3946 return &aes_192_wrap_pad;
3947}
d31fed73
DSH		 3948
3949static const EVP_CIPHER aes_256_wrap_pad = {
0f113f3e
MC		 3950 NID_id_aes256_wrap_pad,
3951 8, 32, 4, WRAP_FLAGS,
3952 aes_wrap_init_key, aes_wrap_cipher,
3953 NULL,
3954 sizeof(EVP_AES_WRAP_CTX),
3955 NULL, NULL, NULL, NULL
3956};
d31fed73
DSH		 3957
3958const EVP_CIPHER *EVP_aes_256_wrap_pad(void)
0f113f3e
MC		 3959{
3960 return &aes_256_wrap_pad;
3961}
d31fed73 3962
5158c763 3963#ifndef OPENSSL_NO_OCB
e6b336ef 3964static int aes_ocb_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
0f113f3e 3965{
6435f0f6 3966 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,c);
0f113f3e
MC		 3967 EVP_CIPHER_CTX *newc;
3968 EVP_AES_OCB_CTX *new_octx;
3969
3970 switch (type) {
3971 case EVP_CTRL_INIT:
3972 octx->key_set = 0;
3973 octx->iv_set = 0;
6435f0f6
RL		 3974 octx->ivlen = EVP_CIPHER_CTX_iv_length(c);
3975 octx->iv = EVP_CIPHER_CTX_iv_noconst(c);
0f113f3e
MC		 3976 octx->taglen = 16;
3977 octx->data_buf_len = 0;
3978 octx->aad_buf_len = 0;
3979 return 1;
3980
e640fa02 3981 case EVP_CTRL_AEAD_SET_IVLEN:
0f113f3e
MC		 3982 /* IV len must be 1 to 15 */
3983 if (arg <= 0 || arg > 15)
3984 return 0;
3985
3986 octx->ivlen = arg;
3987 return 1;
3988
e640fa02 3989 case EVP_CTRL_AEAD_SET_TAG:
d57d135c
MC		 3990 if (!ptr) {
3991 /* Tag len must be 0 to 16 */
3992 if (arg < 0 || arg > 16)
3993 return 0;
3994
3995 octx->taglen = arg;
3996 return 1;
3997 }
6435f0f6 3998 if (arg != octx->taglen || EVP_CIPHER_CTX_encrypting(c))
0f113f3e
MC		 3999 return 0;
4000 memcpy(octx->tag, ptr, arg);
4001 return 1;
4002
e640fa02 4003 case EVP_CTRL_AEAD_GET_TAG:
6435f0f6 4004 if (arg != octx->taglen || !EVP_CIPHER_CTX_encrypting(c))
0f113f3e
MC		 4005 return 0;
4006
4007 memcpy(ptr, octx->tag, arg);
4008 return 1;
4009
4010 case EVP_CTRL_COPY:
4011 newc = (EVP_CIPHER_CTX *)ptr;
6435f0f6 4012 new_octx = EVP_C_DATA(EVP_AES_OCB_CTX,newc);
0f113f3e 4013 return CRYPTO_ocb128_copy_ctx(&new_octx->ocb, &octx->ocb,
bdc985b1
AP		 4014 &new_octx->ksenc.ks,
4015 &new_octx->ksdec.ks);
0f113f3e
MC		 4016
4017 default:
4018 return -1;
4019
4020 }
4021}
e6b336ef 4022
5158c763
MC		 4023# ifdef HWAES_CAPABLE
4024# ifdef HWAES_ocb_encrypt
02dc0b82
AP		 4025void HWAES_ocb_encrypt(const unsigned char *in, unsigned char *out,
4026 size_t blocks, const void *key,
4027 size_t start_block_num,
4028 unsigned char offset_i[16],
4029 const unsigned char L_[][16],
4030 unsigned char checksum[16]);
5158c763 4031# else
365f95ad 4032# define HWAES_ocb_encrypt ((ocb128_f)NULL)
5158c763
MC		 4033# endif
4034# ifdef HWAES_ocb_decrypt
02dc0b82
AP		 4035void HWAES_ocb_decrypt(const unsigned char *in, unsigned char *out,
4036 size_t blocks, const void *key,
4037 size_t start_block_num,
4038 unsigned char offset_i[16],
4039 const unsigned char L_[][16],
4040 unsigned char checksum[16]);
5158c763 4041# else
365f95ad 4042# define HWAES_ocb_decrypt ((ocb128_f)NULL)
02dc0b82 4043# endif
5158c763 4044# endif
02dc0b82 4045
e6b336ef 4046static int aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
0f113f3e
MC		 4047 const unsigned char *iv, int enc)
4048{
6435f0f6 4049 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
0f113f3e
MC		 4050 if (!iv && !key)
4051 return 1;
4052 if (key) {
4053 do {
4054 /*
4055 * We set both the encrypt and decrypt key here because decrypt
4056 * needs both. We could possibly optimise to remove setting the
4057 * decrypt for an encryption operation.
4058 */
5158c763 4059# ifdef HWAES_CAPABLE
02dc0b82 4060 if (HWAES_CAPABLE) {
6435f0f6
RL		 4061 HWAES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4062 &octx->ksenc.ks);
4063 HWAES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4064 &octx->ksdec.ks);
02dc0b82
AP		 4065 if (!CRYPTO_ocb128_init(&octx->ocb,
4066 &octx->ksenc.ks, &octx->ksdec.ks,
4067 (block128_f) HWAES_encrypt,
4068 (block128_f) HWAES_decrypt,
4069 enc ? HWAES_ocb_encrypt
4070 : HWAES_ocb_decrypt))
4071 return 0;
4072 break;
4073 }
5158c763
MC		 4074# endif
4075# ifdef VPAES_CAPABLE
0f113f3e 4076 if (VPAES_CAPABLE) {
6435f0f6
RL		 4077 vpaes_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4078 &octx->ksenc.ks);
4079 vpaes_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4080 &octx->ksdec.ks);
bdc985b1
AP		 4081 if (!CRYPTO_ocb128_init(&octx->ocb,
4082 &octx->ksenc.ks, &octx->ksdec.ks,
4083 (block128_f) vpaes_encrypt,
bd30091c
AP		 4084 (block128_f) vpaes_decrypt,
4085 NULL))
0f113f3e
MC		 4086 return 0;
4087 break;
4088 }
5158c763 4089# endif
6435f0f6
RL		 4090 AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4091 &octx->ksenc.ks);
4092 AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
4093 &octx->ksdec.ks);
bdc985b1
AP		 4094 if (!CRYPTO_ocb128_init(&octx->ocb,
4095 &octx->ksenc.ks, &octx->ksdec.ks,
0f113f3e 4096 (block128_f) AES_encrypt,
bd30091c
AP		 4097 (block128_f) AES_decrypt,
4098 NULL))
0f113f3e
MC		 4099 return 0;
4100 }
4101 while (0);
4102
4103 /*
4104 * If we have an iv we can set it directly, otherwise use saved IV.
4105 */
4106 if (iv == NULL && octx->iv_set)
4107 iv = octx->iv;
4108 if (iv) {
4109 if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
4110 != 1)
4111 return 0;
4112 octx->iv_set = 1;
4113 }
4114 octx->key_set = 1;
4115 } else {
4116 /* If key set use IV, otherwise copy */
4117 if (octx->key_set)
4118 CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
4119 else
4120 memcpy(octx->iv, iv, octx->ivlen);
4121 octx->iv_set = 1;
4122 }
4123 return 1;
4124}
e6b336ef
MC		 4125
4126static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
0f113f3e
MC		 4127 const unsigned char *in, size_t len)
4128{
4129 unsigned char *buf;
4130 int *buf_len;
4131 int written_len = 0;
4132 size_t trailing_len;
6435f0f6 4133 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,ctx);
0f113f3e
MC		 4134
4135 /* If IV or Key not set then return error */
4136 if (!octx->iv_set)
4137 return -1;
4138
4139 if (!octx->key_set)
4140 return -1;
4141
0ba5a9ea 4142 if (in != NULL) {
0f113f3e
MC		 4143 /*
4144 * Need to ensure we are only passing full blocks to low level OCB
4145 * routines. We do it here rather than in EVP_EncryptUpdate/
4146 * EVP_DecryptUpdate because we need to pass full blocks of AAD too
4147 * and those routines don't support that
4148 */
4149
4150 /* Are we dealing with AAD or normal data here? */
4151 if (out == NULL) {
4152 buf = octx->aad_buf;
4153 buf_len = &(octx->aad_buf_len);
4154 } else {
4155 buf = octx->data_buf;
4156 buf_len = &(octx->data_buf_len);
7141ba31
MC		 4157
4158 if (is_partially_overlapping(out + *buf_len, in, len)) {
4159 EVPerr(EVP_F_AES_OCB_CIPHER, EVP_R_PARTIALLY_OVERLAPPING);
4160 return 0;
4161 }
0f113f3e
MC		 4162 }
4163
4164 /*
4165 * If we've got a partially filled buffer from a previous call then
4166 * use that data first
4167 */
0ba5a9ea 4168 if (*buf_len > 0) {
0f113f3e
MC		 4169 unsigned int remaining;
4170
0ba5a9ea 4171 remaining = AES_BLOCK_SIZE - (*buf_len);
0f113f3e
MC		 4172 if (remaining > len) {
4173 memcpy(buf + (*buf_len), in, len);
4174 *(buf_len) += len;
4175 return 0;
4176 }
4177 memcpy(buf + (*buf_len), in, remaining);
4178
4179 /*
4180 * If we get here we've filled the buffer, so process it
4181 */
4182 len -= remaining;
4183 in += remaining;
4184 if (out == NULL) {
0ba5a9ea 4185 if (!CRYPTO_ocb128_aad(&octx->ocb, buf, AES_BLOCK_SIZE))
0f113f3e 4186 return -1;
6435f0f6 4187 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
0ba5a9ea
MC		 4188 if (!CRYPTO_ocb128_encrypt(&octx->ocb, buf, out,
4189 AES_BLOCK_SIZE))
0f113f3e
MC		 4190 return -1;
4191 } else {
0ba5a9ea
MC		 4192 if (!CRYPTO_ocb128_decrypt(&octx->ocb, buf, out,
4193 AES_BLOCK_SIZE))
0f113f3e
MC		 4194 return -1;
4195 }
0ba5a9ea 4196 written_len = AES_BLOCK_SIZE;
0f113f3e 4197 *buf_len = 0;
7c12c7b6
MC		 4198 if (out != NULL)
4199 out += AES_BLOCK_SIZE;
0f113f3e
MC		 4200 }
4201
4202 /* Do we have a partial block to handle at the end? */
0ba5a9ea 4203 trailing_len = len % AES_BLOCK_SIZE;
0f113f3e
MC		 4204
4205 /*
4206 * If we've got some full blocks to handle, then process these first
4207 */
4208 if (len != trailing_len) {
4209 if (out == NULL) {
4210 if (!CRYPTO_ocb128_aad(&octx->ocb, in, len - trailing_len))
4211 return -1;
6435f0f6 4212 } else if (EVP_CIPHER_CTX_encrypting(ctx)) {
0f113f3e
MC		 4213 if (!CRYPTO_ocb128_encrypt
4214 (&octx->ocb, in, out, len - trailing_len))
4215 return -1;
4216 } else {
4217 if (!CRYPTO_ocb128_decrypt
4218 (&octx->ocb, in, out, len - trailing_len))
4219 return -1;
4220 }
4221 written_len += len - trailing_len;
4222 in += len - trailing_len;
4223 }
4224
4225 /* Handle any trailing partial block */
0ba5a9ea 4226 if (trailing_len > 0) {
0f113f3e
MC		 4227 memcpy(buf, in, trailing_len);
4228 *buf_len = trailing_len;
4229 }
4230
4231 return written_len;
4232 } else {
4233 /*
4234 * First of all empty the buffer of any partial block that we might
4235 * have been provided - both for data and AAD
4236 */
0ba5a9ea 4237 if (octx->data_buf_len > 0) {
6435f0f6 4238 if (EVP_CIPHER_CTX_encrypting(ctx)) {
0f113f3e
MC		 4239 if (!CRYPTO_ocb128_encrypt(&octx->ocb, octx->data_buf, out,
4240 octx->data_buf_len))
4241 return -1;
4242 } else {
4243 if (!CRYPTO_ocb128_decrypt(&octx->ocb, octx->data_buf, out,
4244 octx->data_buf_len))
4245 return -1;
4246 }
4247 written_len = octx->data_buf_len;
4248 octx->data_buf_len = 0;
4249 }
0ba5a9ea 4250 if (octx->aad_buf_len > 0) {
0f113f3e
MC		 4251 if (!CRYPTO_ocb128_aad
4252 (&octx->ocb, octx->aad_buf, octx->aad_buf_len))
4253 return -1;
4254 octx->aad_buf_len = 0;
4255 }
4256 /* If decrypting then verify */
6435f0f6 4257 if (!EVP_CIPHER_CTX_encrypting(ctx)) {
0f113f3e
MC		 4258 if (octx->taglen < 0)
4259 return -1;
4260 if (CRYPTO_ocb128_finish(&octx->ocb,
4261 octx->tag, octx->taglen) != 0)
4262 return -1;
4263 octx->iv_set = 0;
4264 return written_len;
4265 }
4266 /* If encrypting then just get the tag */
4267 if (CRYPTO_ocb128_tag(&octx->ocb, octx->tag, 16) != 1)
4268 return -1;
4269 /* Don't reuse the IV */
4270 octx->iv_set = 0;
4271 return written_len;
4272 }
4273}
e6b336ef
MC		 4274
4275static int aes_ocb_cleanup(EVP_CIPHER_CTX *c)
0f113f3e 4276{
6435f0f6 4277 EVP_AES_OCB_CTX *octx = EVP_C_DATA(EVP_AES_OCB_CTX,c);
0f113f3e
MC		 4278 CRYPTO_ocb128_cleanup(&octx->ocb);
4279 return 1;
4280}
e6b336ef 4281
c4aede20
MC		 4282BLOCK_CIPHER_custom(NID_aes, 128, 16, 12, ocb, OCB,
4283 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
4284BLOCK_CIPHER_custom(NID_aes, 192, 16, 12, ocb, OCB,
4285 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
4286BLOCK_CIPHER_custom(NID_aes, 256, 16, 12, ocb, OCB,
4287 EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
5158c763 4288#endif /* OPENSSL_NO_OCB */
b1ceb439
TS		 4289
4290/* AES-SIV mode */
4291#ifndef OPENSSL_NO_SIV
4292
4293typedef SIV128_CONTEXT EVP_AES_SIV_CTX;
4294
4295#define aesni_siv_init_key aes_siv_init_key
4296static int aes_siv_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
4297 const unsigned char *iv, int enc)
4298{
4299 const EVP_CIPHER *ctr;
4300 const EVP_CIPHER *cbc;
4301 SIV128_CONTEXT *sctx = EVP_C_DATA(SIV128_CONTEXT, ctx);
4302 int klen = EVP_CIPHER_CTX_key_length(ctx) / 2;
4303
4304 if (key == NULL)
4305 return 1;
4306
4307 switch (klen) {
4308 case 16:
4309 cbc = EVP_aes_128_cbc();
4310 ctr = EVP_aes_128_ctr();
4311 break;
4312 case 24:
4313 cbc = EVP_aes_192_cbc();
4314 ctr = EVP_aes_192_ctr();
4315 break;
4316 case 32:
4317 cbc = EVP_aes_256_cbc();
4318 ctr = EVP_aes_256_ctr();
4319 break;
4320 default:
4321 return 0;
4322 }
4323
4324 /* klen is the length of the underlying cipher, not the input key,
4325 which should be twice as long */
4326 return CRYPTO_siv128_init(sctx, key, klen, cbc, ctr);
4327}
4328
4329#define aesni_siv_cipher aes_siv_cipher
4330static int aes_siv_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
4331 const unsigned char *in, size_t len)
4332{
4333 SIV128_CONTEXT *sctx = EVP_C_DATA(SIV128_CONTEXT, ctx);
4334
4335 /* EncryptFinal or DecryptFinal */
4336 if (in == NULL)
4337 return CRYPTO_siv128_finish(sctx);
4338
4339 /* Deal with associated data */
4340 if (out == NULL)
4341 return CRYPTO_siv128_aad(sctx, in, len);
4342
4343 if (EVP_CIPHER_CTX_encrypting(ctx))
4344 return CRYPTO_siv128_encrypt(sctx, in, out, len);
4345
4346 return CRYPTO_siv128_decrypt(sctx, in, out, len);
4347}
4348
4349#define aesni_siv_cleanup aes_siv_cleanup
4350static int aes_siv_cleanup(EVP_CIPHER_CTX *c)
4351{
4352 SIV128_CONTEXT *sctx = EVP_C_DATA(SIV128_CONTEXT, c);
4353
4354 return CRYPTO_siv128_cleanup(sctx);
4355}
4356
4357
4358#define aesni_siv_ctrl aes_siv_ctrl
4359static int aes_siv_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
4360{
4361 SIV128_CONTEXT *sctx = EVP_C_DATA(SIV128_CONTEXT, c);
4362 SIV128_CONTEXT *sctx_out;
4363
4364 switch (type) {
4365 case EVP_CTRL_INIT:
4366 return CRYPTO_siv128_cleanup(sctx);
4367
4368 case EVP_CTRL_SET_SPEED:
4369 return CRYPTO_siv128_speed(sctx, arg);
4370
4371 case EVP_CTRL_AEAD_SET_TAG:
4372 if (!EVP_CIPHER_CTX_encrypting(c))
4373 return CRYPTO_siv128_set_tag(sctx, ptr, arg);
4374 return 1;
4375
4376 case EVP_CTRL_AEAD_GET_TAG:
4377 if (!EVP_CIPHER_CTX_encrypting(c))
4378 return 0;
4379 return CRYPTO_siv128_get_tag(sctx, ptr, arg);
4380
4381 case EVP_CTRL_COPY:
4382 sctx_out = EVP_C_DATA(SIV128_CONTEXT, (EVP_CIPHER_CTX*)ptr);
4383 return CRYPTO_siv128_copy_ctx(sctx_out, sctx);
4384
4385 default:
4386 return -1;
4387
4388 }
4389}
4390
4391#define SIV_FLAGS (EVP_CIPH_FLAG_AEAD_CIPHER | EVP_CIPH_FLAG_DEFAULT_ASN1 \
4392 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
4393 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CUSTOM_COPY \
4394 | EVP_CIPH_CTRL_INIT)
4395
4396BLOCK_CIPHER_custom(NID_aes, 128, 1, 0, siv, SIV, SIV_FLAGS)
4397BLOCK_CIPHER_custom(NID_aes, 192, 1, 0, siv, SIV, SIV_FLAGS)
4398BLOCK_CIPHER_custom(NID_aes, 256, 1, 0, siv, SIV, SIV_FLAGS)
4399#endif
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