2 * Written by Matt Caswell (matt@openssl.org) for the OpenSSL project.
4 /* ====================================================================
5 * Copyright (c) 2015 The OpenSSL Project. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
19 * 3. All advertising materials mentioning features or use of this
20 * software must display the following acknowledgment:
21 * "This product includes software developed by the OpenSSL Project
22 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
25 * endorse or promote products derived from this software without
26 * prior written permission. For written permission, please contact
27 * licensing@OpenSSL.org.
29 * 5. Products derived from this software may not be called "OpenSSL"
30 * nor may "OpenSSL" appear in their names without prior written
31 * permission of the OpenSSL Project.
33 * 6. Redistributions of any form whatsoever must retain the following
35 * "This product includes software developed by the OpenSSL Project
36 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
39 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
40 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
41 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
42 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
43 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
44 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
45 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
46 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
47 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
48 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
49 * OF THE POSSIBILITY OF SUCH DAMAGE.
50 * ====================================================================
54 * This is the OSSLTEST engine. It provides deliberately crippled digest
55 * implementations for test purposes. It is highly insecure and must NOT be
56 * used for any purpose except testing
62 #include <openssl/engine.h>
63 #include <openssl/sha.h>
64 #include <openssl/md5.h>
65 #include <openssl/rsa.h>
66 #include <openssl/evp.h>
67 #include <openssl/modes.h>
68 #include <openssl/aes.h>
69 #include <openssl/crypto.h>
71 #define OSSLTEST_LIB_NAME "OSSLTEST"
72 #include "e_ossltest_err.c"
74 /* Engine Id and Name */
75 static const char *engine_ossltest_id = "ossltest";
76 static const char *engine_ossltest_name = "OpenSSL Test engine support";
79 /* Engine Lifetime functions */
80 static int ossltest_destroy(ENGINE *e);
81 static int ossltest_init(ENGINE *e);
82 static int ossltest_finish(ENGINE *e);
83 void ENGINE_load_ossltest(void);
87 static int ossltest_digests(ENGINE *e, const EVP_MD **digest,
88 const int **nids, int nid);
91 static int digest_md5_init(EVP_MD_CTX *ctx);
92 static int digest_md5_update(EVP_MD_CTX *ctx, const void *data,
94 static int digest_md5_final(EVP_MD_CTX *ctx, unsigned char *md);
96 static EVP_MD *_hidden_md5_md = NULL;
97 static const EVP_MD *digest_md5(void)
99 if (_hidden_md5_md == NULL) {
102 if ((md = EVP_MD_meth_new(NID_md5, NID_md5WithRSAEncryption)) == NULL
103 || !EVP_MD_meth_set_result_size(md, MD5_DIGEST_LENGTH)
104 || !EVP_MD_meth_set_input_blocksize(md, MD5_CBLOCK)
105 || !EVP_MD_meth_set_app_datasize(md,
106 sizeof(EVP_MD *) + sizeof(MD5_CTX))
107 || !EVP_MD_meth_set_flags(md, 0)
108 || !EVP_MD_meth_set_init(md, digest_md5_init)
109 || !EVP_MD_meth_set_update(md, digest_md5_update)
110 || !EVP_MD_meth_set_final(md, digest_md5_final)) {
111 EVP_MD_meth_free(md);
116 return _hidden_md5_md;
120 static int digest_sha1_init(EVP_MD_CTX *ctx);
121 static int digest_sha1_update(EVP_MD_CTX *ctx, const void *data,
123 static int digest_sha1_final(EVP_MD_CTX *ctx, unsigned char *md);
125 static EVP_MD *_hidden_sha1_md = NULL;
126 static const EVP_MD *digest_sha1(void)
128 if (_hidden_sha1_md == NULL) {
131 if ((md = EVP_MD_meth_new(NID_sha1, NID_sha1WithRSAEncryption)) == NULL
132 || !EVP_MD_meth_set_result_size(md, SHA_DIGEST_LENGTH)
133 || !EVP_MD_meth_set_input_blocksize(md, SHA_CBLOCK)
134 || !EVP_MD_meth_set_app_datasize(md,
135 sizeof(EVP_MD *) + sizeof(SHA_CTX))
136 || !EVP_MD_meth_set_flags(md, EVP_MD_FLAG_DIGALGID_ABSENT)
137 || !EVP_MD_meth_set_init(md, digest_sha1_init)
138 || !EVP_MD_meth_set_update(md, digest_sha1_update)
139 || !EVP_MD_meth_set_final(md, digest_sha1_final)) {
140 EVP_MD_meth_free(md);
143 _hidden_sha1_md = md;
145 return _hidden_sha1_md;
149 static int digest_sha256_init(EVP_MD_CTX *ctx);
150 static int digest_sha256_update(EVP_MD_CTX *ctx, const void *data,
152 static int digest_sha256_final(EVP_MD_CTX *ctx, unsigned char *md);
154 static EVP_MD *_hidden_sha256_md = NULL;
155 static const EVP_MD *digest_sha256(void)
157 if (_hidden_sha256_md == NULL) {
160 if ((md = EVP_MD_meth_new(NID_sha256, NID_sha256WithRSAEncryption)) == NULL
161 || !EVP_MD_meth_set_result_size(md, SHA256_DIGEST_LENGTH)
162 || !EVP_MD_meth_set_input_blocksize(md, SHA256_CBLOCK)
163 || !EVP_MD_meth_set_app_datasize(md,
164 sizeof(EVP_MD *) + sizeof(SHA256_CTX))
165 || !EVP_MD_meth_set_flags(md, EVP_MD_FLAG_DIGALGID_ABSENT)
166 || !EVP_MD_meth_set_init(md, digest_sha256_init)
167 || !EVP_MD_meth_set_update(md, digest_sha256_update)
168 || !EVP_MD_meth_set_final(md, digest_sha256_final)) {
169 EVP_MD_meth_free(md);
172 _hidden_sha256_md = md;
174 return _hidden_sha256_md;
178 static int digest_sha384_init(EVP_MD_CTX *ctx);
179 static int digest_sha512_init(EVP_MD_CTX *ctx);
180 static int digest_sha512_update(EVP_MD_CTX *ctx, const void *data,
182 static int digest_sha384_final(EVP_MD_CTX *ctx, unsigned char *md);
183 static int digest_sha512_final(EVP_MD_CTX *ctx, unsigned char *md);
185 static EVP_MD *_hidden_sha384_md = NULL;
186 static const EVP_MD *digest_sha384(void)
188 if (_hidden_sha384_md == NULL) {
191 if ((md = EVP_MD_meth_new(NID_sha384, NID_sha384WithRSAEncryption)) == NULL
192 || !EVP_MD_meth_set_result_size(md, SHA384_DIGEST_LENGTH)
193 || !EVP_MD_meth_set_input_blocksize(md, SHA512_CBLOCK)
194 || !EVP_MD_meth_set_app_datasize(md,
195 sizeof(EVP_MD *) + sizeof(SHA512_CTX))
196 || !EVP_MD_meth_set_flags(md, EVP_MD_FLAG_DIGALGID_ABSENT)
197 || !EVP_MD_meth_set_init(md, digest_sha384_init)
198 || !EVP_MD_meth_set_update(md, digest_sha512_update)
199 || !EVP_MD_meth_set_final(md, digest_sha384_final)) {
200 EVP_MD_meth_free(md);
203 _hidden_sha384_md = md;
205 return _hidden_sha384_md;
207 static EVP_MD *_hidden_sha512_md = NULL;
208 static const EVP_MD *digest_sha512(void)
210 if (_hidden_sha512_md == NULL) {
213 if ((md = EVP_MD_meth_new(NID_sha512, NID_sha512WithRSAEncryption)) == NULL
214 || !EVP_MD_meth_set_result_size(md, SHA512_DIGEST_LENGTH)
215 || !EVP_MD_meth_set_input_blocksize(md, SHA512_CBLOCK)
216 || !EVP_MD_meth_set_app_datasize(md,
217 sizeof(EVP_MD *) + sizeof(SHA512_CTX))
218 || !EVP_MD_meth_set_flags(md, EVP_MD_FLAG_DIGALGID_ABSENT)
219 || !EVP_MD_meth_set_init(md, digest_sha512_init)
220 || !EVP_MD_meth_set_update(md, digest_sha512_update)
221 || !EVP_MD_meth_set_final(md, digest_sha512_final)) {
222 EVP_MD_meth_free(md);
225 _hidden_sha512_md = md;
227 return _hidden_sha512_md;
229 static void destroy_digests(void)
231 EVP_MD_meth_free(_hidden_md5_md);
232 _hidden_md5_md = NULL;
233 EVP_MD_meth_free(_hidden_sha1_md);
234 _hidden_sha1_md = NULL;
235 EVP_MD_meth_free(_hidden_sha256_md);
236 _hidden_sha256_md = NULL;
237 EVP_MD_meth_free(_hidden_sha384_md);
238 _hidden_sha384_md = NULL;
239 EVP_MD_meth_free(_hidden_sha512_md);
240 _hidden_sha512_md = NULL;
242 static int ossltest_digest_nids(const int **nids)
244 static int digest_nids[6] = { 0, 0, 0, 0, 0, 0 };
250 if ((md = digest_md5()) != NULL)
251 digest_nids[pos++] = EVP_MD_type(md);
252 if ((md = digest_sha1()) != NULL)
253 digest_nids[pos++] = EVP_MD_type(md);
254 if ((md = digest_sha256()) != NULL)
255 digest_nids[pos++] = EVP_MD_type(md);
256 if ((md = digest_sha384()) != NULL)
257 digest_nids[pos++] = EVP_MD_type(md);
258 if ((md = digest_sha512()) != NULL)
259 digest_nids[pos++] = EVP_MD_type(md);
260 digest_nids[pos] = 0;
268 static int ossltest_ciphers(ENGINE *, const EVP_CIPHER **,
271 static int ossltest_cipher_nids[] = {
277 int ossltest_aes128_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
278 const unsigned char *iv, int enc);
279 int ossltest_aes128_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
280 const unsigned char *in, size_t inl);
282 static EVP_CIPHER *_hidden_aes_128_cbc = NULL;
283 static const EVP_CIPHER *ossltest_aes_128_cbc(void)
285 if (_hidden_aes_128_cbc == NULL
286 && ((_hidden_aes_128_cbc = EVP_CIPHER_meth_new(NID_aes_128_cbc,
288 16 /* key len */)) == NULL
289 || !EVP_CIPHER_meth_set_iv_length(_hidden_aes_128_cbc,16)
290 || !EVP_CIPHER_meth_set_flags(_hidden_aes_128_cbc,
291 EVP_CIPH_FLAG_DEFAULT_ASN1
293 || !EVP_CIPHER_meth_set_init(_hidden_aes_128_cbc,
294 ossltest_aes128_init_key)
295 || !EVP_CIPHER_meth_set_do_cipher(_hidden_aes_128_cbc,
296 ossltest_aes128_cbc_cipher)
297 || !EVP_CIPHER_meth_set_impl_ctx_size(_hidden_aes_128_cbc,
298 EVP_CIPHER_impl_ctx_size(EVP_aes_128_cbc())))) {
299 EVP_CIPHER_meth_free(_hidden_aes_128_cbc);
300 _hidden_aes_128_cbc = NULL;
302 return _hidden_aes_128_cbc;
304 static void destroy_ciphers(void)
306 EVP_CIPHER_meth_free(_hidden_aes_128_cbc);
307 _hidden_aes_128_cbc = NULL;
310 static int bind_ossltest(ENGINE *e)
312 /* Ensure the ossltest error handling is set up */
313 ERR_load_OSSLTEST_strings();
315 if (!ENGINE_set_id(e, engine_ossltest_id)
316 || !ENGINE_set_name(e, engine_ossltest_name)
317 || !ENGINE_set_digests(e, ossltest_digests)
318 || !ENGINE_set_ciphers(e, ossltest_ciphers)
319 || !ENGINE_set_destroy_function(e, ossltest_destroy)
320 || !ENGINE_set_init_function(e, ossltest_init)
321 || !ENGINE_set_finish_function(e, ossltest_finish)) {
322 OSSLTESTerr(OSSLTEST_F_BIND_OSSLTEST, OSSLTEST_R_INIT_FAILED);
329 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
330 static int bind_helper(ENGINE *e, const char *id)
332 if (id && (strcmp(id, engine_ossltest_id) != 0))
334 if (!bind_ossltest(e))
339 IMPLEMENT_DYNAMIC_CHECK_FN()
340 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
343 static ENGINE *engine_ossltest(void)
345 ENGINE *ret = ENGINE_new();
348 if (!bind_ossltest(ret)) {
355 void ENGINE_load_ossltest(void)
357 /* Copied from eng_[openssl|dyn].c */
358 ENGINE *toadd = engine_ossltest();
367 static int ossltest_init(ENGINE *e)
373 static int ossltest_finish(ENGINE *e)
379 static int ossltest_destroy(ENGINE *e)
383 ERR_unload_OSSLTEST_strings();
387 static int ossltest_digests(ENGINE *e, const EVP_MD **digest,
388 const int **nids, int nid)
392 /* We are returning a list of supported nids */
393 return ossltest_digest_nids(nids);
395 /* We are being asked for a specific digest */
398 *digest = digest_md5();
401 *digest = digest_sha1();
404 *digest = digest_sha256();
407 *digest = digest_sha384();
410 *digest = digest_sha512();
420 static int ossltest_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
421 const int **nids, int nid)
425 /* We are returning a list of supported nids */
426 *nids = ossltest_cipher_nids;
427 return (sizeof(ossltest_cipher_nids) - 1)
428 / sizeof(ossltest_cipher_nids[0]);
430 /* We are being asked for a specific cipher */
432 case NID_aes_128_cbc:
433 *cipher = ossltest_aes_128_cbc();
443 static void fill_known_data(unsigned char *md, unsigned int len)
447 for (i=0; i<len; i++) {
448 md[i] = (unsigned char)(i & 0xff);
453 * MD5 implementation. We go through the motions of doing MD5 by deferring to
454 * the standard implementation. Then we overwrite the result with a will defined
455 * value, so that all "MD5" digests using the test engine always end up with
459 #define data(ctx) ((MD5_CTX *)EVP_MD_CTX_md_data(ctx))
460 static int digest_md5_init(EVP_MD_CTX *ctx)
462 return MD5_Init(data(ctx));
465 static int digest_md5_update(EVP_MD_CTX *ctx, const void *data,
468 return MD5_Update(data(ctx), data, (size_t)count);
471 static int digest_md5_final(EVP_MD_CTX *ctx, unsigned char *md)
474 ret = MD5_Final(md, data(ctx));
477 fill_known_data(md, MD5_DIGEST_LENGTH);
483 * SHA1 implementation.
486 #define data(ctx) ((SHA_CTX *)EVP_MD_CTX_md_data(ctx))
487 static int digest_sha1_init(EVP_MD_CTX *ctx)
489 return SHA1_Init(data(ctx));
492 static int digest_sha1_update(EVP_MD_CTX *ctx, const void *data,
495 return SHA1_Update(data(ctx), data, (size_t)count);
498 static int digest_sha1_final(EVP_MD_CTX *ctx, unsigned char *md)
501 ret = SHA1_Final(md, data(ctx));
504 fill_known_data(md, SHA_DIGEST_LENGTH);
510 * SHA256 implementation.
513 #define data(ctx) ((SHA256_CTX *)EVP_MD_CTX_md_data(ctx))
514 static int digest_sha256_init(EVP_MD_CTX *ctx)
516 return SHA256_Init(data(ctx));
519 static int digest_sha256_update(EVP_MD_CTX *ctx, const void *data,
522 return SHA256_Update(data(ctx), data, (size_t)count);
525 static int digest_sha256_final(EVP_MD_CTX *ctx, unsigned char *md)
528 ret = SHA256_Final(md, data(ctx));
531 fill_known_data(md, SHA256_DIGEST_LENGTH);
537 * SHA384/512 implementation.
540 #define data(ctx) ((SHA512_CTX *)EVP_MD_CTX_md_data(ctx))
541 static int digest_sha384_init(EVP_MD_CTX *ctx)
543 return SHA384_Init(data(ctx));
546 static int digest_sha512_init(EVP_MD_CTX *ctx)
548 return SHA512_Init(data(ctx));
551 static int digest_sha512_update(EVP_MD_CTX *ctx, const void *data,
554 return SHA512_Update(data(ctx), data, (size_t)count);
557 static int digest_sha384_final(EVP_MD_CTX *ctx, unsigned char *md)
560 /* Actually uses SHA512_Final! */
561 ret = SHA512_Final(md, data(ctx));
564 fill_known_data(md, SHA384_DIGEST_LENGTH);
569 static int digest_sha512_final(EVP_MD_CTX *ctx, unsigned char *md)
572 ret = SHA512_Final(md, data(ctx));
575 fill_known_data(md, SHA512_DIGEST_LENGTH);
581 * AES128 Implementation
584 int ossltest_aes128_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
585 const unsigned char *iv, int enc)
587 return EVP_CIPHER_meth_get_init(EVP_aes_128_cbc()) (ctx, key, iv, enc);
590 int ossltest_aes128_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
591 const unsigned char *in, size_t inl)
593 unsigned char *tmpbuf;
596 tmpbuf = OPENSSL_malloc(inl);
600 /* Remember what we were asked to encrypt */
601 memcpy(tmpbuf, in, inl);
603 /* Go through the motions of encrypting it */
604 ret = EVP_CIPHER_meth_get_do_cipher(EVP_aes_128_cbc())(ctx, out, in, inl);
606 /* Throw it all away and just use the plaintext as the output */
607 memcpy(out, tmpbuf, inl);
608 OPENSSL_free(tmpbuf);