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fix some code with obvious wrong coding style
[thirdparty/openssl.git] / engines / e_ossltest.c
CommitLineData
2d5d70b1 1/*
38fc02a7 2 * Copyright 2015-2021 The OpenSSL Project Authors. All Rights Reserved.
2d5d70b1 3 *
ab3fa1c0 4 * Licensed under the Apache License 2.0 (the "License"). You may not use
440e5d80
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
2d5d70b1
MC		 8 */
9
10/*
11 * This is the OSSLTEST engine. It provides deliberately crippled digest
12 * implementations for test purposes. It is highly insecure and must NOT be
13 * used for any purpose except testing
14 */
15
cf8e8cba
P		 16/* We need to use some engine deprecated APIs */
17#define OPENSSL_SUPPRESS_DEPRECATED
18
85d843c8
P		 19/*
20 * SHA low level APIs are deprecated for public use, but still ok for
21 * internal use. Note, that due to symbols not being exported, only the
22 * #defines and type definitions can be accessed, function calls are not
23 * available. The digest lengths, block sizes and sizeof(CTX) are used herein
24 * for several different digests.
25 */
26#include "internal/deprecated.h"
27
2d5d70b1
MC		 28#include <stdio.h>
29#include <string.h>
30
31#include <openssl/engine.h>
32#include <openssl/sha.h>
33#include <openssl/md5.h>
34#include <openssl/rsa.h>
35#include <openssl/evp.h>
36#include <openssl/modes.h>
37#include <openssl/aes.h>
c57c32a8 38#include <openssl/rand.h>
7b9f8f7f 39#include <openssl/crypto.h>
0a3b330c 40#include <openssl/pem.h>
64da15c4 41#include <crypto/evp.h>
2d5d70b1 42
2d5d70b1
MC		 43#include "e_ossltest_err.c"
44
0a3b330c
RL		 45#ifdef _WIN32
46# define strncasecmp _strnicmp
47#endif
48
2d5d70b1
MC		 49/* Engine Id and Name */
50static const char *engine_ossltest_id = "ossltest";
51static const char *engine_ossltest_name = "OpenSSL Test engine support";
52
53
54/* Engine Lifetime functions */
55static int ossltest_destroy(ENGINE *e);
56static int ossltest_init(ENGINE *e);
57static int ossltest_finish(ENGINE *e);
58void ENGINE_load_ossltest(void);
59
60
61/* Set up digests */
62static int ossltest_digests(ENGINE *e, const EVP_MD **digest,
63 const int **nids, int nid);
c57c32a8 64static const RAND_METHOD *ossltest_rand_method(void);
2d5d70b1 65
2d5d70b1
MC		 66/* MD5 */
67static int digest_md5_init(EVP_MD_CTX *ctx);
68static int digest_md5_update(EVP_MD_CTX *ctx, const void *data,
16a9542a 69 size_t count);
2d5d70b1
MC		 70static int digest_md5_final(EVP_MD_CTX *ctx, unsigned char *md);
71
cddcea8c
RL		 72static EVP_MD *_hidden_md5_md = NULL;
73static const EVP_MD *digest_md5(void)
74{
75 if (_hidden_md5_md == NULL) {
76 EVP_MD *md;
77
78 if ((md = EVP_MD_meth_new(NID_md5, NID_md5WithRSAEncryption)) == NULL
79 || !EVP_MD_meth_set_result_size(md, MD5_DIGEST_LENGTH)
80 || !EVP_MD_meth_set_input_blocksize(md, MD5_CBLOCK)
81 || !EVP_MD_meth_set_app_datasize(md,
82 sizeof(EVP_MD *) + sizeof(MD5_CTX))
83 || !EVP_MD_meth_set_flags(md, 0)
84 || !EVP_MD_meth_set_init(md, digest_md5_init)
85 || !EVP_MD_meth_set_update(md, digest_md5_update)
86 || !EVP_MD_meth_set_final(md, digest_md5_final)) {
87 EVP_MD_meth_free(md);
88 md = NULL;
89 }
90 _hidden_md5_md = md;
91 }
92 return _hidden_md5_md;
93}
2d5d70b1
MC		 94
95/* SHA1 */
96static int digest_sha1_init(EVP_MD_CTX *ctx);
97static int digest_sha1_update(EVP_MD_CTX *ctx, const void *data,
16a9542a 98 size_t count);
2d5d70b1
MC		 99static int digest_sha1_final(EVP_MD_CTX *ctx, unsigned char *md);
100
cddcea8c
RL		 101static EVP_MD *_hidden_sha1_md = NULL;
102static const EVP_MD *digest_sha1(void)
103{
104 if (_hidden_sha1_md == NULL) {
105 EVP_MD *md;
106
107 if ((md = EVP_MD_meth_new(NID_sha1, NID_sha1WithRSAEncryption)) == NULL
108 || !EVP_MD_meth_set_result_size(md, SHA_DIGEST_LENGTH)
109 || !EVP_MD_meth_set_input_blocksize(md, SHA_CBLOCK)
110 || !EVP_MD_meth_set_app_datasize(md,
111 sizeof(EVP_MD *) + sizeof(SHA_CTX))
112 || !EVP_MD_meth_set_flags(md, EVP_MD_FLAG_DIGALGID_ABSENT)
113 || !EVP_MD_meth_set_init(md, digest_sha1_init)
114 || !EVP_MD_meth_set_update(md, digest_sha1_update)
115 || !EVP_MD_meth_set_final(md, digest_sha1_final)) {
116 EVP_MD_meth_free(md);
117 md = NULL;
118 }
119 _hidden_sha1_md = md;
120 }
121 return _hidden_sha1_md;
122}
2d5d70b1
MC		 123
124/* SHA256 */
125static int digest_sha256_init(EVP_MD_CTX *ctx);
126static int digest_sha256_update(EVP_MD_CTX *ctx, const void *data,
16a9542a 127 size_t count);
2d5d70b1
MC		 128static int digest_sha256_final(EVP_MD_CTX *ctx, unsigned char *md);
129
cddcea8c
RL		 130static EVP_MD *_hidden_sha256_md = NULL;
131static const EVP_MD *digest_sha256(void)
132{
133 if (_hidden_sha256_md == NULL) {
134 EVP_MD *md;
135
136 if ((md = EVP_MD_meth_new(NID_sha256, NID_sha256WithRSAEncryption)) == NULL
137 || !EVP_MD_meth_set_result_size(md, SHA256_DIGEST_LENGTH)
138 || !EVP_MD_meth_set_input_blocksize(md, SHA256_CBLOCK)
139 || !EVP_MD_meth_set_app_datasize(md,
140 sizeof(EVP_MD *) + sizeof(SHA256_CTX))
141 || !EVP_MD_meth_set_flags(md, EVP_MD_FLAG_DIGALGID_ABSENT)
142 || !EVP_MD_meth_set_init(md, digest_sha256_init)
143 || !EVP_MD_meth_set_update(md, digest_sha256_update)
144 || !EVP_MD_meth_set_final(md, digest_sha256_final)) {
145 EVP_MD_meth_free(md);
146 md = NULL;
147 }
148 _hidden_sha256_md = md;
149 }
150 return _hidden_sha256_md;
151}
2d5d70b1
MC		 152
153/* SHA384/SHA512 */
154static int digest_sha384_init(EVP_MD_CTX *ctx);
85d843c8
P		 155static int digest_sha384_update(EVP_MD_CTX *ctx, const void *data,
156 size_t count);
157static int digest_sha384_final(EVP_MD_CTX *ctx, unsigned char *md);
158
2d5d70b1
MC		 159static int digest_sha512_init(EVP_MD_CTX *ctx);
160static int digest_sha512_update(EVP_MD_CTX *ctx, const void *data,
16a9542a 161 size_t count);
2d5d70b1
MC		 162static int digest_sha512_final(EVP_MD_CTX *ctx, unsigned char *md);
163
cddcea8c
RL		 164static EVP_MD *_hidden_sha384_md = NULL;
165static const EVP_MD *digest_sha384(void)
166{
167 if (_hidden_sha384_md == NULL) {
168 EVP_MD *md;
169
170 if ((md = EVP_MD_meth_new(NID_sha384, NID_sha384WithRSAEncryption)) == NULL
171 || !EVP_MD_meth_set_result_size(md, SHA384_DIGEST_LENGTH)
172 || !EVP_MD_meth_set_input_blocksize(md, SHA512_CBLOCK)
173 || !EVP_MD_meth_set_app_datasize(md,
174 sizeof(EVP_MD *) + sizeof(SHA512_CTX))
175 || !EVP_MD_meth_set_flags(md, EVP_MD_FLAG_DIGALGID_ABSENT)
176 || !EVP_MD_meth_set_init(md, digest_sha384_init)
85d843c8 177 || !EVP_MD_meth_set_update(md, digest_sha384_update)
cddcea8c
RL		 178 || !EVP_MD_meth_set_final(md, digest_sha384_final)) {
179 EVP_MD_meth_free(md);
180 md = NULL;
181 }
182 _hidden_sha384_md = md;
183 }
184 return _hidden_sha384_md;
185}
186static EVP_MD *_hidden_sha512_md = NULL;
187static const EVP_MD *digest_sha512(void)
188{
189 if (_hidden_sha512_md == NULL) {
190 EVP_MD *md;
191
192 if ((md = EVP_MD_meth_new(NID_sha512, NID_sha512WithRSAEncryption)) == NULL
193 || !EVP_MD_meth_set_result_size(md, SHA512_DIGEST_LENGTH)
194 || !EVP_MD_meth_set_input_blocksize(md, SHA512_CBLOCK)
195 || !EVP_MD_meth_set_app_datasize(md,
196 sizeof(EVP_MD *) + sizeof(SHA512_CTX))
197 || !EVP_MD_meth_set_flags(md, EVP_MD_FLAG_DIGALGID_ABSENT)
198 || !EVP_MD_meth_set_init(md, digest_sha512_init)
199 || !EVP_MD_meth_set_update(md, digest_sha512_update)
200 || !EVP_MD_meth_set_final(md, digest_sha512_final)) {
201 EVP_MD_meth_free(md);
202 md = NULL;
203 }
204 _hidden_sha512_md = md;
205 }
206 return _hidden_sha512_md;
207}
208static void destroy_digests(void)
209{
210 EVP_MD_meth_free(_hidden_md5_md);
211 _hidden_md5_md = NULL;
212 EVP_MD_meth_free(_hidden_sha1_md);
213 _hidden_sha1_md = NULL;
214 EVP_MD_meth_free(_hidden_sha256_md);
215 _hidden_sha256_md = NULL;
216 EVP_MD_meth_free(_hidden_sha384_md);
217 _hidden_sha384_md = NULL;
218 EVP_MD_meth_free(_hidden_sha512_md);
219 _hidden_sha512_md = NULL;
220}
221static int ossltest_digest_nids(const int **nids)
222{
223 static int digest_nids[6] = { 0, 0, 0, 0, 0, 0 };
224 static int pos = 0;
225 static int init = 0;
226
227 if (!init) {
228 const EVP_MD *md;
229 if ((md = digest_md5()) != NULL)
ed576acd 230 digest_nids[pos++] = EVP_MD_get_type(md);
cddcea8c 231 if ((md = digest_sha1()) != NULL)
ed576acd 232 digest_nids[pos++] = EVP_MD_get_type(md);
cddcea8c 233 if ((md = digest_sha256()) != NULL)
ed576acd 234 digest_nids[pos++] = EVP_MD_get_type(md);
cddcea8c 235 if ((md = digest_sha384()) != NULL)
ed576acd 236 digest_nids[pos++] = EVP_MD_get_type(md);
cddcea8c 237 if ((md = digest_sha512()) != NULL)
ed576acd 238 digest_nids[pos++] = EVP_MD_get_type(md);
cddcea8c
RL		 239 digest_nids[pos] = 0;
240 init = 1;
241 }
242 *nids = digest_nids;
243 return pos;
244}
2d5d70b1
MC		 245
246/* Setup ciphers */
247static int ossltest_ciphers(ENGINE *, const EVP_CIPHER **,
248 const int **, int);
249
250static int ossltest_cipher_nids[] = {
64da15c4
BE		 251 NID_aes_128_cbc, NID_aes_128_gcm,
252 NID_aes_128_cbc_hmac_sha1, 0
2d5d70b1
MC		 253};
254
255/* AES128 */
256
64da15c4
BE		 257static int ossltest_aes128_init_key(EVP_CIPHER_CTX *ctx,
258 const unsigned char *key,
259 const unsigned char *iv, int enc);
260static int ossltest_aes128_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
261 const unsigned char *in, size_t inl);
262static int ossltest_aes128_gcm_init_key(EVP_CIPHER_CTX *ctx,
263 const unsigned char *key,
264 const unsigned char *iv, int enc);
265static int ossltest_aes128_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
266 const unsigned char *in, size_t inl);
aad22ba2
MC		 267static int ossltest_aes128_gcm_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg,
268 void *ptr);
64da15c4
BE		 269static int ossltest_aes128_cbc_hmac_sha1_init_key(EVP_CIPHER_CTX *ctx,
270 const unsigned char *key,
271 const unsigned char *iv,
272 int enc);
273static int ossltest_aes128_cbc_hmac_sha1_cipher(EVP_CIPHER_CTX *ctx,
274 unsigned char *out,
275 const unsigned char *in,
276 size_t inl);
277static int ossltest_aes128_cbc_hmac_sha1_ctrl(EVP_CIPHER_CTX *ctx, int type,
278 int arg, void *ptr);
279
280typedef struct {
281 size_t payload_length; /* AAD length in decrypt case */
282 unsigned int tls_ver;
283} EVP_AES_HMAC_SHA1;
2d5d70b1 284
39e8d0ce
RL		 285static EVP_CIPHER *_hidden_aes_128_cbc = NULL;
286static const EVP_CIPHER *ossltest_aes_128_cbc(void)
287{
288 if (_hidden_aes_128_cbc == NULL
289 && ((_hidden_aes_128_cbc = EVP_CIPHER_meth_new(NID_aes_128_cbc,
290 16 /* block size */,
291 16 /* key len */)) == NULL
292 || !EVP_CIPHER_meth_set_iv_length(_hidden_aes_128_cbc,16)
293 || !EVP_CIPHER_meth_set_flags(_hidden_aes_128_cbc,
294 EVP_CIPH_FLAG_DEFAULT_ASN1
295 | EVP_CIPH_CBC_MODE)
296 || !EVP_CIPHER_meth_set_init(_hidden_aes_128_cbc,
297 ossltest_aes128_init_key)
298 || !EVP_CIPHER_meth_set_do_cipher(_hidden_aes_128_cbc,
299 ossltest_aes128_cbc_cipher)
300 || !EVP_CIPHER_meth_set_impl_ctx_size(_hidden_aes_128_cbc,
ed576acd 301 EVP_CIPHER_impl_ctx_size(EVP_aes_128_cbc())))) {
39e8d0ce
RL		 302 EVP_CIPHER_meth_free(_hidden_aes_128_cbc);
303 _hidden_aes_128_cbc = NULL;
304 }
305 return _hidden_aes_128_cbc;
306}
64da15c4 307
aad22ba2 308static EVP_CIPHER *_hidden_aes_128_gcm = NULL;
ca0b75ad 309
aad22ba2
MC		 310#define AES_GCM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
311 | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
312 | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
313 | EVP_CIPH_CUSTOM_COPY |EVP_CIPH_FLAG_AEAD_CIPHER \
314 | EVP_CIPH_GCM_MODE)
ca0b75ad 315
aad22ba2
MC		 316static const EVP_CIPHER *ossltest_aes_128_gcm(void)
317{
318 if (_hidden_aes_128_gcm == NULL
319 && ((_hidden_aes_128_gcm = EVP_CIPHER_meth_new(NID_aes_128_gcm,
320 1 /* block size */,
321 16 /* key len */)) == NULL
322 || !EVP_CIPHER_meth_set_iv_length(_hidden_aes_128_gcm,12)
323 || !EVP_CIPHER_meth_set_flags(_hidden_aes_128_gcm, AES_GCM_FLAGS)
324 || !EVP_CIPHER_meth_set_init(_hidden_aes_128_gcm,
325 ossltest_aes128_gcm_init_key)
326 || !EVP_CIPHER_meth_set_do_cipher(_hidden_aes_128_gcm,
327 ossltest_aes128_gcm_cipher)
328 || !EVP_CIPHER_meth_set_ctrl(_hidden_aes_128_gcm,
329 ossltest_aes128_gcm_ctrl)
330 || !EVP_CIPHER_meth_set_impl_ctx_size(_hidden_aes_128_gcm,
ed576acd 331 EVP_CIPHER_impl_ctx_size(EVP_aes_128_gcm())))) {
aad22ba2
MC		 332 EVP_CIPHER_meth_free(_hidden_aes_128_gcm);
333 _hidden_aes_128_gcm = NULL;
334 }
335 return _hidden_aes_128_gcm;
336}
337
64da15c4
BE		 338static EVP_CIPHER *_hidden_aes_128_cbc_hmac_sha1 = NULL;
339
340static const EVP_CIPHER *ossltest_aes_128_cbc_hmac_sha1(void)
341{
342 if (_hidden_aes_128_cbc_hmac_sha1 == NULL
343 && ((_hidden_aes_128_cbc_hmac_sha1
344 = EVP_CIPHER_meth_new(NID_aes_128_cbc_hmac_sha1,
345 16 /* block size */,
346 16 /* key len */)) == NULL
347 || !EVP_CIPHER_meth_set_iv_length(_hidden_aes_128_cbc_hmac_sha1,16)
348 || !EVP_CIPHER_meth_set_flags(_hidden_aes_128_cbc_hmac_sha1,
349 EVP_CIPH_CBC_MODE | EVP_CIPH_FLAG_DEFAULT_ASN1 |
350 EVP_CIPH_FLAG_AEAD_CIPHER)
351 || !EVP_CIPHER_meth_set_init(_hidden_aes_128_cbc_hmac_sha1,
352 ossltest_aes128_cbc_hmac_sha1_init_key)
353 || !EVP_CIPHER_meth_set_do_cipher(_hidden_aes_128_cbc_hmac_sha1,
354 ossltest_aes128_cbc_hmac_sha1_cipher)
355 || !EVP_CIPHER_meth_set_ctrl(_hidden_aes_128_cbc_hmac_sha1,
356 ossltest_aes128_cbc_hmac_sha1_ctrl)
357 || !EVP_CIPHER_meth_set_set_asn1_params(_hidden_aes_128_cbc_hmac_sha1,
358 EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_set_asn1_iv)
359 || !EVP_CIPHER_meth_set_get_asn1_params(_hidden_aes_128_cbc_hmac_sha1,
360 EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_get_asn1_iv)
361 || !EVP_CIPHER_meth_set_impl_ctx_size(_hidden_aes_128_cbc_hmac_sha1,
362 sizeof(EVP_AES_HMAC_SHA1)))) {
363 EVP_CIPHER_meth_free(_hidden_aes_128_cbc_hmac_sha1);
364 _hidden_aes_128_cbc_hmac_sha1 = NULL;
365 }
366 return _hidden_aes_128_cbc_hmac_sha1;
367}
368
39e8d0ce
RL		 369static void destroy_ciphers(void)
370{
371 EVP_CIPHER_meth_free(_hidden_aes_128_cbc);
aad22ba2 372 EVP_CIPHER_meth_free(_hidden_aes_128_gcm);
64da15c4 373 EVP_CIPHER_meth_free(_hidden_aes_128_cbc_hmac_sha1);
39e8d0ce 374 _hidden_aes_128_cbc = NULL;
64da15c4
BE		 375 _hidden_aes_128_gcm = NULL;
376 _hidden_aes_128_cbc_hmac_sha1 = NULL;
39e8d0ce 377}
2d5d70b1 378
0a3b330c
RL		 379/* Key loading */
380static EVP_PKEY *load_key(ENGINE *eng, const char *key_id, int pub,
381 UI_METHOD *ui_method, void *ui_data)
382{
383 BIO *in;
384 EVP_PKEY *key;
385
386 if (strncasecmp(key_id, "ot:", 3) != 0)
387 return NULL;
388 key_id += 3;
389
390 fprintf(stderr, "[ossltest]Loading %s key %s\n",
391 pub ? "Public" : "Private", key_id);
392 in = BIO_new_file(key_id, "r");
393 if (!in)
394 return NULL;
395 if (pub)
396 key = PEM_read_bio_PUBKEY(in, NULL, 0, NULL);
397 else
398 key = PEM_read_bio_PrivateKey(in, NULL, 0, NULL);
399 BIO_free(in);
400 return key;
401}
402
403static EVP_PKEY *ossltest_load_privkey(ENGINE *eng, const char *key_id,
404 UI_METHOD *ui_method, void *ui_data)
405{
406 return load_key(eng, key_id, 0, ui_method, ui_data);
407}
408
409static EVP_PKEY *ossltest_load_pubkey(ENGINE *eng, const char *key_id,
410 UI_METHOD *ui_method, void *ui_data)
411{
412 return load_key(eng, key_id, 1, ui_method, ui_data);
413}
414
415
2d5d70b1
MC		 416static int bind_ossltest(ENGINE *e)
417{
418 /* Ensure the ossltest error handling is set up */
419 ERR_load_OSSLTEST_strings();
420
421 if (!ENGINE_set_id(e, engine_ossltest_id)
422 || !ENGINE_set_name(e, engine_ossltest_name)
423 || !ENGINE_set_digests(e, ossltest_digests)
424 || !ENGINE_set_ciphers(e, ossltest_ciphers)
c57c32a8 425 || !ENGINE_set_RAND(e, ossltest_rand_method())
2d5d70b1 426 || !ENGINE_set_destroy_function(e, ossltest_destroy)
0a3b330c
RL		 427 || !ENGINE_set_load_privkey_function(e, ossltest_load_privkey)
428 || !ENGINE_set_load_pubkey_function(e, ossltest_load_pubkey)
2d5d70b1
MC		 429 || !ENGINE_set_init_function(e, ossltest_init)
430 || !ENGINE_set_finish_function(e, ossltest_finish)) {
431 OSSLTESTerr(OSSLTEST_F_BIND_OSSLTEST, OSSLTEST_R_INIT_FAILED);
432 return 0;
433 }
434
435 return 1;
436}
437
c0cbb4c1 438#ifndef OPENSSL_NO_DYNAMIC_ENGINE
2d5d70b1
MC		 439static int bind_helper(ENGINE *e, const char *id)
440{
441 if (id && (strcmp(id, engine_ossltest_id) != 0))
442 return 0;
443 if (!bind_ossltest(e))
444 return 0;
445 return 1;
446}
447
448IMPLEMENT_DYNAMIC_CHECK_FN()
449 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
c0cbb4c1
RL		 450#endif
451
2d5d70b1
MC		 452static ENGINE *engine_ossltest(void)
453{
454 ENGINE *ret = ENGINE_new();
55646005 455 if (ret == NULL)
2d5d70b1
MC		 456 return NULL;
457 if (!bind_ossltest(ret)) {
458 ENGINE_free(ret);
459 return NULL;
460 }
461 return ret;
462}
463
464void ENGINE_load_ossltest(void)
465{
466 /* Copied from eng_[openssl|dyn].c */
467 ENGINE *toadd = engine_ossltest();
468 if (!toadd)
469 return;
470 ENGINE_add(toadd);
471 ENGINE_free(toadd);
472 ERR_clear_error();
473}
2d5d70b1
MC		 474
475
476static int ossltest_init(ENGINE *e)
477{
478 return 1;
479}
480
481
482static int ossltest_finish(ENGINE *e)
483{
484 return 1;
485}
486
487
488static int ossltest_destroy(ENGINE *e)
489{
cddcea8c 490 destroy_digests();
39e8d0ce 491 destroy_ciphers();
2d5d70b1
MC		 492 ERR_unload_OSSLTEST_strings();
493 return 1;
494}
495
496static int ossltest_digests(ENGINE *e, const EVP_MD **digest,
497 const int **nids, int nid)
498{
499 int ok = 1;
500 if (!digest) {
501 /* We are returning a list of supported nids */
cddcea8c 502 return ossltest_digest_nids(nids);
2d5d70b1
MC		 503 }
504 /* We are being asked for a specific digest */
505 switch (nid) {
506 case NID_md5:
cddcea8c 507 *digest = digest_md5();
2d5d70b1
MC		 508 break;
509 case NID_sha1:
cddcea8c 510 *digest = digest_sha1();
2d5d70b1
MC		 511 break;
512 case NID_sha256:
cddcea8c 513 *digest = digest_sha256();
2d5d70b1
MC		 514 break;
515 case NID_sha384:
cddcea8c 516 *digest = digest_sha384();
2d5d70b1
MC		 517 break;
518 case NID_sha512:
cddcea8c 519 *digest = digest_sha512();
2d5d70b1
MC		 520 break;
521 default:
522 ok = 0;
523 *digest = NULL;
524 break;
525 }
526 return ok;
527}
528
529static int ossltest_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
530 const int **nids, int nid)
531{
532 int ok = 1;
533 if (!cipher) {
534 /* We are returning a list of supported nids */
535 *nids = ossltest_cipher_nids;
536 return (sizeof(ossltest_cipher_nids) - 1)
537 / sizeof(ossltest_cipher_nids[0]);
538 }
539 /* We are being asked for a specific cipher */
540 switch (nid) {
541 case NID_aes_128_cbc:
39e8d0ce 542 *cipher = ossltest_aes_128_cbc();
2d5d70b1 543 break;
aad22ba2
MC		 544 case NID_aes_128_gcm:
545 *cipher = ossltest_aes_128_gcm();
546 break;
64da15c4
BE		 547 case NID_aes_128_cbc_hmac_sha1:
548 *cipher = ossltest_aes_128_cbc_hmac_sha1();
549 break;
2d5d70b1
MC		 550 default:
551 ok = 0;
552 *cipher = NULL;
553 break;
554 }
555 return ok;
556}
557
558static void fill_known_data(unsigned char *md, unsigned int len)
559{
560 unsigned int i;
561
562 for (i=0; i<len; i++) {
563 md[i] = (unsigned char)(i & 0xff);
564 }
565}
566
567/*
568 * MD5 implementation. We go through the motions of doing MD5 by deferring to
569 * the standard implementation. Then we overwrite the result with a will defined
570 * value, so that all "MD5" digests using the test engine always end up with
571 * the same value.
572 */
2d5d70b1
MC		 573static int digest_md5_init(EVP_MD_CTX *ctx)
574{
85d843c8 575 return EVP_MD_meth_get_init(EVP_md5())(ctx);
2d5d70b1
MC		 576}
577
578static int digest_md5_update(EVP_MD_CTX *ctx, const void *data,
16a9542a 579 size_t count)
2d5d70b1 580{
85d843c8 581 return EVP_MD_meth_get_update(EVP_md5())(ctx, data, count);
2d5d70b1
MC		 582}
583
584static int digest_md5_final(EVP_MD_CTX *ctx, unsigned char *md)
585{
85d843c8 586 int ret = EVP_MD_meth_get_final(EVP_md5())(ctx, md);
2d5d70b1
MC		 587
588 if (ret > 0) {
589 fill_known_data(md, MD5_DIGEST_LENGTH);
590 }
591 return ret;
592}
593
594/*
595 * SHA1 implementation.
596 */
2d5d70b1
MC		 597static int digest_sha1_init(EVP_MD_CTX *ctx)
598{
85d843c8 599 return EVP_MD_meth_get_init(EVP_sha1())(ctx);
2d5d70b1
MC		 600}
601
602static int digest_sha1_update(EVP_MD_CTX *ctx, const void *data,
16a9542a 603 size_t count)
2d5d70b1 604{
85d843c8 605 return EVP_MD_meth_get_update(EVP_sha1())(ctx, data, count);
2d5d70b1
MC		 606}
607
608static int digest_sha1_final(EVP_MD_CTX *ctx, unsigned char *md)
609{
85d843c8 610 int ret = EVP_MD_meth_get_final(EVP_sha1())(ctx, md);
2d5d70b1
MC		 611
612 if (ret > 0) {
613 fill_known_data(md, SHA_DIGEST_LENGTH);
614 }
615 return ret;
616}
617
618/*
619 * SHA256 implementation.
620 */
2d5d70b1
MC		 621static int digest_sha256_init(EVP_MD_CTX *ctx)
622{
85d843c8 623 return EVP_MD_meth_get_init(EVP_sha256())(ctx);
2d5d70b1
MC		 624}
625
626static int digest_sha256_update(EVP_MD_CTX *ctx, const void *data,
16a9542a 627 size_t count)
2d5d70b1 628{
85d843c8 629 return EVP_MD_meth_get_update(EVP_sha256())(ctx, data, count);
2d5d70b1
MC		 630}
631
632static int digest_sha256_final(EVP_MD_CTX *ctx, unsigned char *md)
633{
85d843c8 634 int ret = EVP_MD_meth_get_final(EVP_sha256())(ctx, md);
2d5d70b1
MC		 635
636 if (ret > 0) {
637 fill_known_data(md, SHA256_DIGEST_LENGTH);
638 }
639 return ret;
640}
641
642/*
85d843c8 643 * SHA384 implementation.
2d5d70b1 644 */
2d5d70b1
MC		 645static int digest_sha384_init(EVP_MD_CTX *ctx)
646{
85d843c8 647 return EVP_MD_meth_get_init(EVP_sha384())(ctx);
2d5d70b1
MC		 648}
649
85d843c8 650static int digest_sha384_update(EVP_MD_CTX *ctx, const void *data,
16a9542a 651 size_t count)
2d5d70b1 652{
85d843c8 653 return EVP_MD_meth_get_update(EVP_sha384())(ctx, data, count);
2d5d70b1
MC		 654}
655
656static int digest_sha384_final(EVP_MD_CTX *ctx, unsigned char *md)
657{
85d843c8 658 int ret = EVP_MD_meth_get_final(EVP_sha384())(ctx, md);
2d5d70b1
MC		 659
660 if (ret > 0) {
661 fill_known_data(md, SHA384_DIGEST_LENGTH);
662 }
663 return ret;
664}
665
85d843c8
P		 666/*
667 * SHA512 implementation.
668 */
669static int digest_sha512_init(EVP_MD_CTX *ctx)
670{
671 return EVP_MD_meth_get_init(EVP_sha512())(ctx);
672}
673
674static int digest_sha512_update(EVP_MD_CTX *ctx, const void *data,
675 size_t count)
676{
677 return EVP_MD_meth_get_update(EVP_sha512())(ctx, data, count);
678}
679
2d5d70b1
MC		 680static int digest_sha512_final(EVP_MD_CTX *ctx, unsigned char *md)
681{
85d843c8 682 int ret = EVP_MD_meth_get_final(EVP_sha512())(ctx, md);
2d5d70b1
MC		 683
684 if (ret > 0) {
685 fill_known_data(md, SHA512_DIGEST_LENGTH);
686 }
687 return ret;
688}
689
690/*
691 * AES128 Implementation
692 */
693
64da15c4
BE		 694static int ossltest_aes128_init_key(EVP_CIPHER_CTX *ctx,
695 const unsigned char *key,
696 const unsigned char *iv, int enc)
2d5d70b1 697{
39e8d0ce 698 return EVP_CIPHER_meth_get_init(EVP_aes_128_cbc()) (ctx, key, iv, enc);
2d5d70b1
MC		 699}
700
64da15c4
BE		 701static int ossltest_aes128_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
702 const unsigned char *in, size_t inl)
2d5d70b1
MC		 703{
704 unsigned char *tmpbuf;
705 int ret;
706
707 tmpbuf = OPENSSL_malloc(inl);
04e3bb04
MC		 708
709 /* OPENSSL_malloc will return NULL if inl == 0 */
710 if (tmpbuf == NULL && inl > 0)
2d5d70b1
MC		 711 return -1;
712
713 /* Remember what we were asked to encrypt */
04e3bb04
MC		 714 if (tmpbuf != NULL)
715 memcpy(tmpbuf, in, inl);
2d5d70b1
MC		 716
717 /* Go through the motions of encrypting it */
39e8d0ce 718 ret = EVP_CIPHER_meth_get_do_cipher(EVP_aes_128_cbc())(ctx, out, in, inl);
2d5d70b1
MC		 719
720 /* Throw it all away and just use the plaintext as the output */
04e3bb04
MC		 721 if (tmpbuf != NULL)
722 memcpy(out, tmpbuf, inl);
2d5d70b1
MC		 723 OPENSSL_free(tmpbuf);
724
725 return ret;
726}
aad22ba2 727
64da15c4
BE		 728static int ossltest_aes128_gcm_init_key(EVP_CIPHER_CTX *ctx,
729 const unsigned char *key,
730 const unsigned char *iv, int enc)
aad22ba2
MC		 731{
732 return EVP_CIPHER_meth_get_init(EVP_aes_128_gcm()) (ctx, key, iv, enc);
733}
734
64da15c4
BE		 735static int ossltest_aes128_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
736 const unsigned char *in, size_t inl)
aad22ba2 737{
bebc0c7d 738 unsigned char *tmpbuf = OPENSSL_malloc(inl);
aad22ba2 739
6606d600 740 /* OPENSSL_malloc will return NULL if inl == 0 */
bebc0c7d 741 if (tmpbuf == NULL && inl > 0)
aad22ba2
MC		 742 return -1;
743
744 /* Remember what we were asked to encrypt */
04e3bb04
MC		 745 if (tmpbuf != NULL)
746 memcpy(tmpbuf, in, inl);
aad22ba2
MC		 747
748 /* Go through the motions of encrypting it */
749 EVP_CIPHER_meth_get_do_cipher(EVP_aes_128_gcm())(ctx, out, in, inl);
750
6606d600 751 /* Throw it all away and just use the plaintext as the output */
3295d242 752 if (tmpbuf != NULL && out != NULL)
04e3bb04 753 memcpy(out, tmpbuf, inl);
aad22ba2
MC		 754 OPENSSL_free(tmpbuf);
755
bebc0c7d 756 return inl;
aad22ba2
MC		 757}
758
759static int ossltest_aes128_gcm_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg,
760 void *ptr)
761{
aad22ba2 762 /* Pass the ctrl down */
6606d600 763 int ret = EVP_CIPHER_meth_get_ctrl(EVP_aes_128_gcm())(ctx, type, arg, ptr);
bebc0c7d
MC		 764
765 if (ret <= 0)
766 return ret;
767
1287dabd 768 switch (type) {
bebc0c7d
MC		 769 case EVP_CTRL_AEAD_GET_TAG:
770 /* Always give the same tag */
771 memset(ptr, 0, EVP_GCM_TLS_TAG_LEN);
772 break;
773
774 default:
775 break;
776 }
777
778 return 1;
aad22ba2 779}
c57c32a8 780
64da15c4
BE		 781#define NO_PAYLOAD_LENGTH ((size_t)-1)
782# define data(ctx) ((EVP_AES_HMAC_SHA1 *)EVP_CIPHER_CTX_get_cipher_data(ctx))
783
784static int ossltest_aes128_cbc_hmac_sha1_init_key(EVP_CIPHER_CTX *ctx,
785 const unsigned char *inkey,
786 const unsigned char *iv,
787 int enc)
788{
789 EVP_AES_HMAC_SHA1 *key = data(ctx);
790 key->payload_length = NO_PAYLOAD_LENGTH;
791 return 1;
792}
793
794static int ossltest_aes128_cbc_hmac_sha1_cipher(EVP_CIPHER_CTX *ctx,
795 unsigned char *out,
796 const unsigned char *in,
797 size_t len)
798{
799 EVP_AES_HMAC_SHA1 *key = data(ctx);
800 unsigned int l;
801 size_t plen = key->payload_length;
802
803 key->payload_length = NO_PAYLOAD_LENGTH;
804
805 if (len % AES_BLOCK_SIZE)
806 return 0;
807
808 if (EVP_CIPHER_CTX_is_encrypting(ctx)) {
809 if (plen == NO_PAYLOAD_LENGTH)
810 plen = len;
811 else if (len !=
812 ((plen + SHA_DIGEST_LENGTH +
813 AES_BLOCK_SIZE) & -AES_BLOCK_SIZE))
814 return 0;
815
816 memmove(out, in, plen);
817
818 if (plen != len) { /* "TLS" mode of operation */
819 /* calculate HMAC and append it to payload */
820 fill_known_data(out + plen, SHA_DIGEST_LENGTH);
821
822 /* pad the payload|hmac */
823 plen += SHA_DIGEST_LENGTH;
824 for (l = len - plen - 1; plen < len; plen++)
825 out[plen] = l;
826 }
827 } else {
828 /* decrypt HMAC|padding at once */
829 memmove(out, in, len);
830
831 if (plen != NO_PAYLOAD_LENGTH) { /* "TLS" mode of operation */
832 unsigned int maxpad, pad;
833
834 if (key->tls_ver >= TLS1_1_VERSION) {
835 if (len < (AES_BLOCK_SIZE + SHA_DIGEST_LENGTH + 1))
836 return 0;
837
838 /* omit explicit iv */
839 in += AES_BLOCK_SIZE;
840 out += AES_BLOCK_SIZE;
841 len -= AES_BLOCK_SIZE;
842 } else if (len < (SHA_DIGEST_LENGTH + 1))
843 return 0;
844
845 /* figure out payload length */
846 pad = out[len - 1];
847 maxpad = len - (SHA_DIGEST_LENGTH + 1);
848 if (pad > maxpad)
849 return 0;
850 for (plen = len - pad - 1; plen < len; plen++)
851 if (out[plen] != pad)
852 return 0;
853 }
854 }
855
856 return 1;
857}
858
859static int ossltest_aes128_cbc_hmac_sha1_ctrl(EVP_CIPHER_CTX *ctx, int type,
860 int arg, void *ptr)
861{
862 EVP_AES_HMAC_SHA1 *key = data(ctx);
863
864 switch (type) {
865 case EVP_CTRL_AEAD_SET_MAC_KEY:
866 return 1;
867
868 case EVP_CTRL_AEAD_TLS1_AAD:
869 {
870 unsigned char *p = ptr;
871 unsigned int len;
872
873 if (arg != EVP_AEAD_TLS1_AAD_LEN)
874 return -1;
875
876 len = p[arg - 2] << 8 | p[arg - 1];
877 key->tls_ver = p[arg - 4] << 8 | p[arg - 3];
878
879 if (EVP_CIPHER_CTX_is_encrypting(ctx)) {
880 key->payload_length = len;
881 if (key->tls_ver >= TLS1_1_VERSION) {
882 if (len < AES_BLOCK_SIZE)
883 return 0;
884 len -= AES_BLOCK_SIZE;
885 p[arg - 2] = len >> 8;
886 p[arg - 1] = len;
887 }
888
889 return (int)(((len + SHA_DIGEST_LENGTH +
890 AES_BLOCK_SIZE) & -AES_BLOCK_SIZE)
891 - len);
892 } else {
893 key->payload_length = arg;
894
895 return SHA_DIGEST_LENGTH;
896 }
897 }
898 default:
899 return -1;
900 }
901}
902
c57c32a8
DSH		 903static int ossltest_rand_bytes(unsigned char *buf, int num)
904{
905 unsigned char val = 1;
906
907 while (--num >= 0)
908 *buf++ = val++;
909 return 1;
910}
911
912static int ossltest_rand_status(void)
913{
914 return 1;
915}
916
917static const RAND_METHOD *ossltest_rand_method(void)
918{
919
920 static RAND_METHOD osslt_rand_meth = {
921 NULL,
922 ossltest_rand_bytes,
923 NULL,
924 NULL,
925 ossltest_rand_bytes,
926 ossltest_rand_status
927 };
928
929 return &osslt_rand_meth;
930}
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