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27af42f9 1/*
0d664759 2 * Copyright 2015-2018 The OpenSSL Project Authors. All Rights Reserved.
27af42f9 3 *
48f4ad77 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
27af42f9
DSH		 8 */
9
c0804614 10#include <openssl/evp.h>
3653d0c2 11#include <openssl/core_numbers.h>
2f545ae4
KR		 12#include "internal/refcount.h"
13
4803717f
PY		 14/*
15 * Don't free up md_ctx->pctx in EVP_MD_CTX_reset, use the reserved flag
16 * values in evp.h
17 */
18#define EVP_MD_CTX_FLAG_KEEP_PKEY_CTX 0x0400
19
27af42f9
DSH		 20struct evp_pkey_ctx_st {
21 /* Method associated with this operation */
22 const EVP_PKEY_METHOD *pmeth;
23 /* Engine that implements this method or NULL if builtin */
24 ENGINE *engine;
25 /* Key: may be NULL */
26 EVP_PKEY *pkey;
27 /* Peer key for key agreement, may be NULL */
28 EVP_PKEY *peerkey;
29 /* Actual operation */
30 int operation;
31 /* Algorithm specific data */
32 void *data;
33 /* Application specific data */
34 void *app_data;
35 /* Keygen callback */
36 EVP_PKEY_gen_cb *pkey_gencb;
37 /* implementation specific keygen data */
38 int *keygen_info;
39 int keygen_info_count;
40} /* EVP_PKEY_CTX */ ;
41
42#define EVP_PKEY_FLAG_DYNAMIC 1
43
44struct evp_pkey_method_st {
45 int pkey_id;
46 int flags;
47 int (*init) (EVP_PKEY_CTX *ctx);
9fdcc21f 48 int (*copy) (EVP_PKEY_CTX *dst, const EVP_PKEY_CTX *src);
27af42f9
DSH		 49 void (*cleanup) (EVP_PKEY_CTX *ctx);
50 int (*paramgen_init) (EVP_PKEY_CTX *ctx);
51 int (*paramgen) (EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
52 int (*keygen_init) (EVP_PKEY_CTX *ctx);
53 int (*keygen) (EVP_PKEY_CTX *ctx, EVP_PKEY *pkey);
54 int (*sign_init) (EVP_PKEY_CTX *ctx);
55 int (*sign) (EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
56 const unsigned char *tbs, size_t tbslen);
57 int (*verify_init) (EVP_PKEY_CTX *ctx);
58 int (*verify) (EVP_PKEY_CTX *ctx,
59 const unsigned char *sig, size_t siglen,
60 const unsigned char *tbs, size_t tbslen);
61 int (*verify_recover_init) (EVP_PKEY_CTX *ctx);
62 int (*verify_recover) (EVP_PKEY_CTX *ctx,
63 unsigned char *rout, size_t *routlen,
64 const unsigned char *sig, size_t siglen);
65 int (*signctx_init) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
66 int (*signctx) (EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
67 EVP_MD_CTX *mctx);
68 int (*verifyctx_init) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
69 int (*verifyctx) (EVP_PKEY_CTX *ctx, const unsigned char *sig, int siglen,
70 EVP_MD_CTX *mctx);
71 int (*encrypt_init) (EVP_PKEY_CTX *ctx);
72 int (*encrypt) (EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
73 const unsigned char *in, size_t inlen);
74 int (*decrypt_init) (EVP_PKEY_CTX *ctx);
75 int (*decrypt) (EVP_PKEY_CTX *ctx, unsigned char *out, size_t *outlen,
76 const unsigned char *in, size_t inlen);
77 int (*derive_init) (EVP_PKEY_CTX *ctx);
78 int (*derive) (EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen);
79 int (*ctrl) (EVP_PKEY_CTX *ctx, int type, int p1, void *p2);
80 int (*ctrl_str) (EVP_PKEY_CTX *ctx, const char *type, const char *value);
f723c98e
DSH		 81 int (*digestsign) (EVP_MD_CTX *ctx, unsigned char *sig, size_t *siglen,
82 const unsigned char *tbs, size_t tbslen);
83 int (*digestverify) (EVP_MD_CTX *ctx, const unsigned char *sig,
84 size_t siglen, const unsigned char *tbs,
85 size_t tbslen);
2aee35d3 86 int (*check) (EVP_PKEY *pkey);
b0004708
PY		 87 int (*public_check) (EVP_PKEY *pkey);
88 int (*param_check) (EVP_PKEY *pkey);
0a8fdef7
PY		 89
90 int (*digest_custom) (EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx);
27af42f9
DSH		 91} /* EVP_PKEY_METHOD */ ;
92
a8eba56e 93DEFINE_STACK_OF_CONST(EVP_PKEY_METHOD)
4a1f3f27 94
27af42f9 95void evp_pkey_set_cb_translate(BN_GENCB *cb, EVP_PKEY_CTX *ctx);
8f463dbd
DSH		 96
97extern const EVP_PKEY_METHOD cmac_pkey_meth;
98extern const EVP_PKEY_METHOD dh_pkey_meth;
99extern const EVP_PKEY_METHOD dhx_pkey_meth;
100extern const EVP_PKEY_METHOD dsa_pkey_meth;
101extern const EVP_PKEY_METHOD ec_pkey_meth;
ddb634fe 102extern const EVP_PKEY_METHOD sm2_pkey_meth;
262bd85f 103extern const EVP_PKEY_METHOD ecx25519_pkey_meth;
13735cfe 104extern const EVP_PKEY_METHOD ecx448_pkey_meth;
42a3008a 105extern const EVP_PKEY_METHOD ed25519_pkey_meth;
13735cfe 106extern const EVP_PKEY_METHOD ed448_pkey_meth;
8f463dbd
DSH		 107extern const EVP_PKEY_METHOD hmac_pkey_meth;
108extern const EVP_PKEY_METHOD rsa_pkey_meth;
6577e008 109extern const EVP_PKEY_METHOD rsa_pss_pkey_meth;
cefa762e 110extern const EVP_PKEY_METHOD scrypt_pkey_meth;
1eff3485 111extern const EVP_PKEY_METHOD tls1_prf_pkey_meth;
aacfb134 112extern const EVP_PKEY_METHOD hkdf_pkey_meth;
52ad5b60 113extern const EVP_PKEY_METHOD poly1305_pkey_meth;
3f5616d7 114extern const EVP_PKEY_METHOD siphash_pkey_meth;
2db6bf6f 115
567db2c1
RL		 116/* struct evp_mac_impl_st is defined by the implementation */
117typedef struct evp_mac_impl_st EVP_MAC_IMPL;
118struct evp_mac_st {
119 int type;
120 EVP_MAC_IMPL *(*new) (void);
7ed66e26 121 EVP_MAC_IMPL *(*dup) (const EVP_MAC_IMPL *macsrc);
567db2c1
RL		 122 void (*free) (EVP_MAC_IMPL *macctx);
123 size_t (*size) (EVP_MAC_IMPL *macctx);
124 int (*init) (EVP_MAC_IMPL *macctx);
125 int (*update) (EVP_MAC_IMPL *macctx, const unsigned char *data,
126 size_t datalen);
127 int (*final) (EVP_MAC_IMPL *macctx, unsigned char *out);
128 int (*ctrl) (EVP_MAC_IMPL *macctx, int cmd, va_list args);
129 int (*ctrl_str) (EVP_MAC_IMPL *macctx, const char *type, const char *value);
130};
131
c3a261f8 132extern const EVP_MAC blake2b_mac_meth;
33e113b0 133extern const EVP_MAC blake2s_mac_meth;
f71faf27 134extern const EVP_MAC cmac_meth;
afc580b9 135extern const EVP_MAC gmac_meth;
6723f867 136extern const EVP_MAC hmac_meth;
6e624a64
SL		 137extern const EVP_MAC kmac128_meth;
138extern const EVP_MAC kmac256_meth;
c89d9cda 139extern const EVP_MAC siphash_meth;
c1da4b2a 140extern const EVP_MAC poly1305_meth;
f71faf27 141
6e624a64
SL		 142/* Internal keccak algorithms used for KMAC */
143const EVP_MD *evp_keccak_kmac128(void);
144const EVP_MD *evp_keccak_kmac256(void);
145
567db2c1
RL		 146/*
147 * This function is internal for now, but can be made external when needed.
148 * The documentation would read:
149 *
150 * EVP_add_mac() adds the MAC implementation C<mac> to the internal
151 * object database.
152 */
153int EVP_add_mac(const EVP_MAC *mac);
d2ba8123 154int EVP_add_kdf(const EVP_KDF *kdf);
567db2c1 155
5a285add
DM		 156/* struct evp_kdf_impl_st is defined by the implementation */
157typedef struct evp_kdf_impl_st EVP_KDF_IMPL;
d2ba8123 158struct evp_kdf_st {
5a285add
DM		 159 int type;
160 EVP_KDF_IMPL *(*new) (void);
161 void (*free) (EVP_KDF_IMPL *impl);
162 void (*reset) (EVP_KDF_IMPL *impl);
163 int (*ctrl) (EVP_KDF_IMPL *impl, int cmd, va_list args);
164 int (*ctrl_str) (EVP_KDF_IMPL *impl, const char *type, const char *value);
165 size_t (*size) (EVP_KDF_IMPL *impl);
166 int (*derive) (EVP_KDF_IMPL *impl, unsigned char *key, size_t keylen);
d2ba8123 167};
5a285add 168
d2ba8123
SL		 169extern const EVP_KDF pbkdf2_kdf_meth;
170extern const EVP_KDF scrypt_kdf_meth;
171extern const EVP_KDF tls1_prf_kdf_meth;
172extern const EVP_KDF hkdf_kdf_meth;
173extern const EVP_KDF sshkdf_kdf_meth;
174extern const EVP_KDF ss_kdf_meth;
8bbeaaa4 175extern const EVP_KDF x963_kdf_meth;
1aec7716 176extern const EVP_KDF x942_kdf_meth;
5a285add 177
2db6bf6f 178struct evp_md_st {
3653d0c2 179 /* nid */
2db6bf6f 180 int type;
3653d0c2
MC		 181
182 /* Legacy structure members */
183 /* TODO(3.0): Remove these */
2db6bf6f
RL		 184 int pkey_type;
185 int md_size;
186 unsigned long flags;
187 int (*init) (EVP_MD_CTX *ctx);
188 int (*update) (EVP_MD_CTX *ctx, const void *data, size_t count);
189 int (*final) (EVP_MD_CTX *ctx, unsigned char *md);
190 int (*copy) (EVP_MD_CTX *to, const EVP_MD_CTX *from);
191 int (*cleanup) (EVP_MD_CTX *ctx);
192 int block_size;
193 int ctx_size; /* how big does the ctx->md_data need to be */
194 /* control function */
195 int (*md_ctrl) (EVP_MD_CTX *ctx, int cmd, int p1, void *p2);
3653d0c2
MC		 196
197 /* New structure members */
198 /* TODO(3.0): Remove above comment when legacy has gone */
199 OSSL_PROVIDER *prov;
200 CRYPTO_REF_COUNT refcnt;
201 CRYPTO_RWLOCK *lock;
202 OSSL_OP_digest_newctx_fn *newctx;
203 OSSL_OP_digest_init_fn *dinit;
204 OSSL_OP_digest_update_fn *dupdate;
205 OSSL_OP_digest_final_fn *dfinal;
206 OSSL_OP_digest_digest_fn *digest;
207 OSSL_OP_digest_freectx_fn *freectx;
8c8cf0d9
MC		 208 OSSL_OP_digest_dupctx_fn *dupctx;
209 OSSL_OP_digest_size_fn *size;
7556b9df 210 OSSL_OP_digest_block_size_fn *dblock_size;
d5e5e2ff
SL		 211 OSSL_OP_digest_set_params_fn *set_params;
212 OSSL_OP_digest_get_params_fn *get_params;
3653d0c2 213
2db6bf6f
RL		 214} /* EVP_MD */ ;
215
e79f8773
RL		 216struct evp_cipher_st {
217 int nid;
df05f2ce 218
e79f8773
RL		 219 int block_size;
220 /* Default value for variable length ciphers */
221 int key_len;
222 int iv_len;
df05f2ce
MC		 223
224 /* Legacy structure members */
225 /* TODO(3.0): Remove these */
e79f8773
RL		 226 /* Various flags */
227 unsigned long flags;
228 /* init key */
229 int (*init) (EVP_CIPHER_CTX *ctx, const unsigned char *key,
230 const unsigned char *iv, int enc);
231 /* encrypt/decrypt data */
232 int (*do_cipher) (EVP_CIPHER_CTX *ctx, unsigned char *out,
233 const unsigned char *in, size_t inl);
234 /* cleanup ctx */
235 int (*cleanup) (EVP_CIPHER_CTX *);
236 /* how big ctx->cipher_data needs to be */
237 int ctx_size;
238 /* Populate a ASN1_TYPE with parameters */
239 int (*set_asn1_parameters) (EVP_CIPHER_CTX *, ASN1_TYPE *);
240 /* Get parameters from a ASN1_TYPE */
241 int (*get_asn1_parameters) (EVP_CIPHER_CTX *, ASN1_TYPE *);
242 /* Miscellaneous operations */
243 int (*ctrl) (EVP_CIPHER_CTX *, int type, int arg, void *ptr);
244 /* Application data */
245 void *app_data;
df05f2ce
MC		 246
247 /* New structure members */
248 /* TODO(3.0): Remove above comment when legacy has gone */
249 OSSL_PROVIDER *prov;
250 CRYPTO_REF_COUNT refcnt;
251 CRYPTO_RWLOCK *lock;
252 OSSL_OP_cipher_newctx_fn *newctx;
253 OSSL_OP_cipher_encrypt_init_fn *einit;
254 OSSL_OP_cipher_decrypt_init_fn *dinit;
255 OSSL_OP_cipher_update_fn *cupdate;
256 OSSL_OP_cipher_final_fn *cfinal;
718b133a 257 OSSL_OP_cipher_cipher_fn *ccipher;
df05f2ce
MC		 258 OSSL_OP_cipher_freectx_fn *freectx;
259 OSSL_OP_cipher_dupctx_fn *dupctx;
df05f2ce 260 OSSL_OP_cipher_get_params_fn *get_params;
718b133a
MC		 261 OSSL_OP_cipher_ctx_get_params_fn *ctx_get_params;
262 OSSL_OP_cipher_ctx_set_params_fn *ctx_set_params;
e79f8773
RL		 263} /* EVP_CIPHER */ ;
264
265/* Macros to code block cipher wrappers */
266
267/* Wrapper functions for each cipher mode */
268
44ab2dfd
MC		 269#define EVP_C_DATA(kstruct, ctx) \
270 ((kstruct *)EVP_CIPHER_CTX_get_cipher_data(ctx))
e79f8773
RL		 271
272#define BLOCK_CIPHER_ecb_loop() \
273 size_t i, bl; \
274 bl = EVP_CIPHER_CTX_cipher(ctx)->block_size; \
e8aa8b6c 275 if (inl < bl) return 1;\
e79f8773 276 inl -= bl; \
e8aa8b6c 277 for (i=0; i <= inl; i+=bl)
e79f8773
RL		 278
279#define BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
280static int cname##_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
281{\
282 BLOCK_CIPHER_ecb_loop() \
283 cprefix##_ecb_encrypt(in + i, out + i, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_encrypting(ctx)); \
284 return 1;\
285}
286
287#define EVP_MAXCHUNK ((size_t)1<<(sizeof(long)*8-2))
288
289#define BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched) \
290 static int cname##_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
291{\
292 while(inl>=EVP_MAXCHUNK) {\
293 int num = EVP_CIPHER_CTX_num(ctx);\
294 cprefix##_ofb##cbits##_encrypt(in, out, (long)EVP_MAXCHUNK, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), &num); \
295 EVP_CIPHER_CTX_set_num(ctx, num);\
296 inl-=EVP_MAXCHUNK;\
297 in +=EVP_MAXCHUNK;\
298 out+=EVP_MAXCHUNK;\
299 }\
300 if (inl) {\
301 int num = EVP_CIPHER_CTX_num(ctx);\
302 cprefix##_ofb##cbits##_encrypt(in, out, (long)inl, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), &num); \
303 EVP_CIPHER_CTX_set_num(ctx, num);\
304 }\
305 return 1;\
306}
307
308#define BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
309static int cname##_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
310{\
311 while(inl>=EVP_MAXCHUNK) \
312 {\
313 cprefix##_cbc_encrypt(in, out, (long)EVP_MAXCHUNK, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), EVP_CIPHER_CTX_encrypting(ctx));\
314 inl-=EVP_MAXCHUNK;\
315 in +=EVP_MAXCHUNK;\
316 out+=EVP_MAXCHUNK;\
317 }\
318 if (inl)\
319 cprefix##_cbc_encrypt(in, out, (long)inl, &EVP_C_DATA(kstruct,ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx), EVP_CIPHER_CTX_encrypting(ctx));\
320 return 1;\
321}
322
323#define BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
324static int cname##_cfb##cbits##_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, size_t inl) \
325{\
e8aa8b6c
F		 326 size_t chunk = EVP_MAXCHUNK;\
327 if (cbits == 1) chunk >>= 3;\
328 if (inl < chunk) chunk = inl;\
329 while (inl && inl >= chunk)\
330 {\
331 int num = EVP_CIPHER_CTX_num(ctx);\
332 cprefix##_cfb##cbits##_encrypt(in, out, (long) \
333 ((cbits == 1) \
334 && !EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS) \
604e591e 335 ? chunk*8 : chunk), \
e8aa8b6c
F		 336 &EVP_C_DATA(kstruct, ctx)->ksched, EVP_CIPHER_CTX_iv_noconst(ctx),\
337 &num, EVP_CIPHER_CTX_encrypting(ctx));\
338 EVP_CIPHER_CTX_set_num(ctx, num);\
339 inl -= chunk;\
340 in += chunk;\
341 out += chunk;\
342 if (inl < chunk) chunk = inl;\
343 }\
344 return 1;\
e79f8773
RL		 345}
346
347#define BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
348 BLOCK_CIPHER_func_cbc(cname, cprefix, kstruct, ksched) \
349 BLOCK_CIPHER_func_cfb(cname, cprefix, cbits, kstruct, ksched) \
350 BLOCK_CIPHER_func_ecb(cname, cprefix, kstruct, ksched) \
351 BLOCK_CIPHER_func_ofb(cname, cprefix, cbits, kstruct, ksched)
352
353#define BLOCK_CIPHER_def1(cname, nmode, mode, MODE, kstruct, nid, block_size, \
354 key_len, iv_len, flags, init_key, cleanup, \
355 set_asn1, get_asn1, ctrl) \
356static const EVP_CIPHER cname##_##mode = { \
357 nid##_##nmode, block_size, key_len, iv_len, \
358 flags | EVP_CIPH_##MODE##_MODE, \
359 init_key, \
360 cname##_##mode##_cipher, \
361 cleanup, \
362 sizeof(kstruct), \
363 set_asn1, get_asn1,\
364 ctrl, \
365 NULL \
366}; \
367const EVP_CIPHER *EVP_##cname##_##mode(void) { return &cname##_##mode; }
368
369#define BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, \
370 iv_len, flags, init_key, cleanup, set_asn1, \
371 get_asn1, ctrl) \
372BLOCK_CIPHER_def1(cname, cbc, cbc, CBC, kstruct, nid, block_size, key_len, \
373 iv_len, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
374
375#define BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, \
376 iv_len, cbits, flags, init_key, cleanup, \
377 set_asn1, get_asn1, ctrl) \
378BLOCK_CIPHER_def1(cname, cfb##cbits, cfb##cbits, CFB, kstruct, nid, 1, \
379 key_len, iv_len, flags, init_key, cleanup, set_asn1, \
380 get_asn1, ctrl)
381
382#define BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, \
383 iv_len, cbits, flags, init_key, cleanup, \
384 set_asn1, get_asn1, ctrl) \
385BLOCK_CIPHER_def1(cname, ofb##cbits, ofb, OFB, kstruct, nid, 1, \
386 key_len, iv_len, flags, init_key, cleanup, set_asn1, \
387 get_asn1, ctrl)
388
389#define BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, \
390 flags, init_key, cleanup, set_asn1, \
391 get_asn1, ctrl) \
392BLOCK_CIPHER_def1(cname, ecb, ecb, ECB, kstruct, nid, block_size, key_len, \
393 0, flags, init_key, cleanup, set_asn1, get_asn1, ctrl)
394
395#define BLOCK_CIPHER_defs(cname, kstruct, \
396 nid, block_size, key_len, iv_len, cbits, flags, \
397 init_key, cleanup, set_asn1, get_asn1, ctrl) \
398BLOCK_CIPHER_def_cbc(cname, kstruct, nid, block_size, key_len, iv_len, flags, \
399 init_key, cleanup, set_asn1, get_asn1, ctrl) \
400BLOCK_CIPHER_def_cfb(cname, kstruct, nid, key_len, iv_len, cbits, \
401 flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
402BLOCK_CIPHER_def_ofb(cname, kstruct, nid, key_len, iv_len, cbits, \
403 flags, init_key, cleanup, set_asn1, get_asn1, ctrl) \
404BLOCK_CIPHER_def_ecb(cname, kstruct, nid, block_size, key_len, flags, \
405 init_key, cleanup, set_asn1, get_asn1, ctrl)
406
407/*-
408#define BLOCK_CIPHER_defs(cname, kstruct, \
409 nid, block_size, key_len, iv_len, flags,\
410 init_key, cleanup, set_asn1, get_asn1, ctrl)\
411static const EVP_CIPHER cname##_cbc = {\
412 nid##_cbc, block_size, key_len, iv_len, \
413 flags | EVP_CIPH_CBC_MODE,\
414 init_key,\
415 cname##_cbc_cipher,\
416 cleanup,\
417 sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
418 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
419 set_asn1, get_asn1,\
420 ctrl, \
421 NULL \
422};\
423const EVP_CIPHER *EVP_##cname##_cbc(void) { return &cname##_cbc; }\
424static const EVP_CIPHER cname##_cfb = {\
425 nid##_cfb64, 1, key_len, iv_len, \
426 flags | EVP_CIPH_CFB_MODE,\
427 init_key,\
428 cname##_cfb_cipher,\
429 cleanup,\
430 sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
431 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
432 set_asn1, get_asn1,\
433 ctrl,\
434 NULL \
435};\
436const EVP_CIPHER *EVP_##cname##_cfb(void) { return &cname##_cfb; }\
437static const EVP_CIPHER cname##_ofb = {\
438 nid##_ofb64, 1, key_len, iv_len, \
439 flags | EVP_CIPH_OFB_MODE,\
440 init_key,\
441 cname##_ofb_cipher,\
442 cleanup,\
443 sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
444 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
445 set_asn1, get_asn1,\
446 ctrl,\
447 NULL \
448};\
449const EVP_CIPHER *EVP_##cname##_ofb(void) { return &cname##_ofb; }\
450static const EVP_CIPHER cname##_ecb = {\
451 nid##_ecb, block_size, key_len, iv_len, \
452 flags | EVP_CIPH_ECB_MODE,\
453 init_key,\
454 cname##_ecb_cipher,\
455 cleanup,\
456 sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
457 sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
458 set_asn1, get_asn1,\
459 ctrl,\
460 NULL \
461};\
462const EVP_CIPHER *EVP_##cname##_ecb(void) { return &cname##_ecb; }
463*/
464
465#define IMPLEMENT_BLOCK_CIPHER(cname, ksched, cprefix, kstruct, nid, \
466 block_size, key_len, iv_len, cbits, \
467 flags, init_key, \
468 cleanup, set_asn1, get_asn1, ctrl) \
469 BLOCK_CIPHER_all_funcs(cname, cprefix, cbits, kstruct, ksched) \
470 BLOCK_CIPHER_defs(cname, kstruct, nid, block_size, key_len, iv_len, \
471 cbits, flags, init_key, cleanup, set_asn1, \
472 get_asn1, ctrl)
473
474#define IMPLEMENT_CFBR(cipher,cprefix,kstruct,ksched,keysize,cbits,iv_len,fl) \
475 BLOCK_CIPHER_func_cfb(cipher##_##keysize,cprefix,cbits,kstruct,ksched) \
476 BLOCK_CIPHER_def_cfb(cipher##_##keysize,kstruct, \
477 NID_##cipher##_##keysize, keysize/8, iv_len, cbits, \
478 (fl)|EVP_CIPH_FLAG_DEFAULT_ASN1, \
479 cipher##_init_key, NULL, NULL, NULL, NULL)
480
3aeb9348 481
13735cfe
MC		 482# ifndef OPENSSL_NO_EC
483
484#define X25519_KEYLEN 32
485#define X448_KEYLEN 56
486#define ED448_KEYLEN 57
487
488#define MAX_KEYLEN ED448_KEYLEN
489
490typedef struct {
491 unsigned char pubkey[MAX_KEYLEN];
492 unsigned char *privkey;
493} ECX_KEY;
494
495#endif
496
3aeb9348
DSH		 497/*
498 * Type needs to be a bit field Sub-type needs to be for variations on the
499 * method, as in, can it do arbitrary encryption....
500 */
501struct evp_pkey_st {
502 int type;
503 int save_type;
2f545ae4 504 CRYPTO_REF_COUNT references;
3aeb9348
DSH		 505 const EVP_PKEY_ASN1_METHOD *ameth;
506 ENGINE *engine;
d19b01ad 507 ENGINE *pmeth_engine; /* If not NULL public key ENGINE to use */
3aeb9348 508 union {
a4cb54d2 509 void *ptr;
3aeb9348
DSH		 510# ifndef OPENSSL_NO_RSA
511 struct rsa_st *rsa; /* RSA */
512# endif
513# ifndef OPENSSL_NO_DSA
514 struct dsa_st *dsa; /* DSA */
515# endif
516# ifndef OPENSSL_NO_DH
517 struct dh_st *dh; /* DH */
518# endif
519# ifndef OPENSSL_NO_EC
520 struct ec_key_st *ec; /* ECC */
13735cfe 521 ECX_KEY *ecx; /* X25519, X448, Ed25519, Ed448 */
3aeb9348
DSH		 522# endif
523 } pkey;
524 int save_parameters;
525 STACK_OF(X509_ATTRIBUTE) *attributes; /* [ 0 ] */
03273d61 526 CRYPTO_RWLOCK *lock;
3aeb9348 527} /* EVP_PKEY */ ;
7b9f8f7f
MC		 528
529
b3599dbb
MC		 530void openssl_add_all_ciphers_int(void);
531void openssl_add_all_digests_int(void);
0145dd32 532void openssl_add_all_macs_int(void);
d2ba8123 533void openssl_add_all_kdfs_int(void);
b3599dbb 534void evp_cleanup_int(void);
0822e89a 535void evp_app_cleanup_int(void);
9d6fcd42 536
46f4e1be 537/* Pulling defines out of C source files */
9d6fcd42
TS		 538
539#define EVP_RC4_KEY_SIZE 16
540#ifndef TLS1_1_VERSION
541# define TLS1_1_VERSION 0x0302
542#endif
c0804614
MC		 543
544void evp_encode_ctx_set_flags(EVP_ENCODE_CTX *ctx, unsigned int flags);
545
546/* EVP_ENCODE_CTX flags */
3fd59700
MC		 547/* Don't generate new lines when encoding */
548#define EVP_ENCODE_CTX_NO_NEWLINES 1
549/* Use the SRP base64 alphabet instead of the standard one */
550#define EVP_ENCODE_CTX_USE_SRP_ALPHABET 2
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