1 /* engines/e_ossltest.c */
3 * Written by Matt Caswell (matt@openssl.org) for the OpenSSL project.
5 /* ====================================================================
6 * Copyright (c) 2015 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
55 * This is the OSSLTEST engine. It provides deliberately crippled digest
56 * implementations for test purposes. It is highly insecure and must NOT be
57 * used for any purpose except testing
63 #include <openssl/engine.h>
64 #include <openssl/sha.h>
65 #include <openssl/md5.h>
66 #include <openssl/rsa.h>
67 #include <openssl/evp.h>
68 #include <openssl/modes.h>
69 #include <openssl/aes.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);
90 static int ossltest_digest_nids[] = {
91 NID_md5, NID_sha1, NID_sha256, NID_sha384, NID_sha512, 0
95 static int digest_md5_init(EVP_MD_CTX *ctx);
96 static int digest_md5_update(EVP_MD_CTX *ctx, const void *data,
98 static int digest_md5_final(EVP_MD_CTX *ctx, unsigned char *md);
100 static const EVP_MD digest_md5 = {
102 NID_md5WithRSAEncryption,
111 sizeof(EVP_MD *) + sizeof(MD5_CTX),
115 static int digest_sha1_init(EVP_MD_CTX *ctx);
116 static int digest_sha1_update(EVP_MD_CTX *ctx, const void *data,
118 static int digest_sha1_final(EVP_MD_CTX *ctx, unsigned char *md);
120 static const EVP_MD digest_sha1 = {
122 NID_sha1WithRSAEncryption,
124 EVP_MD_FLAG_DIGALGID_ABSENT,
131 sizeof(EVP_MD *) + sizeof(SHA_CTX),
135 static int digest_sha256_init(EVP_MD_CTX *ctx);
136 static int digest_sha256_update(EVP_MD_CTX *ctx, const void *data,
138 static int digest_sha256_final(EVP_MD_CTX *ctx, unsigned char *md);
140 static const EVP_MD digest_sha256 = {
142 NID_sha256WithRSAEncryption,
143 SHA256_DIGEST_LENGTH,
144 EVP_MD_FLAG_DIGALGID_ABSENT,
146 digest_sha256_update,
151 sizeof(EVP_MD *) + sizeof(SHA256_CTX),
155 static int digest_sha384_init(EVP_MD_CTX *ctx);
156 static int digest_sha512_init(EVP_MD_CTX *ctx);
157 static int digest_sha512_update(EVP_MD_CTX *ctx, const void *data,
159 static int digest_sha384_final(EVP_MD_CTX *ctx, unsigned char *md);
160 static int digest_sha512_final(EVP_MD_CTX *ctx, unsigned char *md);
162 static const EVP_MD digest_sha384 = {
164 NID_sha384WithRSAEncryption,
165 SHA384_DIGEST_LENGTH,
166 EVP_MD_FLAG_DIGALGID_ABSENT,
168 digest_sha512_update,
173 sizeof(EVP_MD *) + sizeof(SHA512_CTX),
176 static const EVP_MD digest_sha512 = {
178 NID_sha512WithRSAEncryption,
179 SHA512_DIGEST_LENGTH,
180 EVP_MD_FLAG_DIGALGID_ABSENT,
182 digest_sha512_update,
187 sizeof(EVP_MD *) + sizeof(SHA512_CTX),
191 static int ossltest_ciphers(ENGINE *, const EVP_CIPHER **,
194 static int ossltest_cipher_nids[] = {
200 int ossltest_aes128_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
201 const unsigned char *iv, int enc);
202 int ossltest_aes128_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
203 const unsigned char *in, size_t inl);
205 static const EVP_CIPHER ossltest_aes_128_cbc = { \
210 EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CBC_MODE,
211 ossltest_aes128_init_key,
212 ossltest_aes128_cbc_cipher,
214 0, /* We don't know the size of cipher_data at compile time */
219 static int bind_ossltest(ENGINE *e)
221 /* Ensure the ossltest error handling is set up */
222 ERR_load_OSSLTEST_strings();
224 if (!ENGINE_set_id(e, engine_ossltest_id)
225 || !ENGINE_set_name(e, engine_ossltest_name)
226 || !ENGINE_set_digests(e, ossltest_digests)
227 || !ENGINE_set_ciphers(e, ossltest_ciphers)
228 || !ENGINE_set_destroy_function(e, ossltest_destroy)
229 || !ENGINE_set_init_function(e, ossltest_init)
230 || !ENGINE_set_finish_function(e, ossltest_finish)) {
231 OSSLTESTerr(OSSLTEST_F_BIND_OSSLTEST, OSSLTEST_R_INIT_FAILED);
238 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
239 static int bind_helper(ENGINE *e, const char *id)
241 if (id && (strcmp(id, engine_ossltest_id) != 0))
243 if (!bind_ossltest(e))
248 IMPLEMENT_DYNAMIC_CHECK_FN()
249 IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
252 static ENGINE *engine_ossltest(void)
254 ENGINE *ret = ENGINE_new();
257 if (!bind_ossltest(ret)) {
264 void ENGINE_load_ossltest(void)
266 /* Copied from eng_[openssl|dyn].c */
267 ENGINE *toadd = engine_ossltest();
276 static int ossltest_init(ENGINE *e)
282 static int ossltest_finish(ENGINE *e)
288 static int ossltest_destroy(ENGINE *e)
290 ERR_unload_OSSLTEST_strings();
294 static int ossltest_digests(ENGINE *e, const EVP_MD **digest,
295 const int **nids, int nid)
299 /* We are returning a list of supported nids */
300 *nids = ossltest_digest_nids;
301 return (sizeof(ossltest_digest_nids) -
302 1) / sizeof(ossltest_digest_nids[0]);
304 /* We are being asked for a specific digest */
307 *digest = &digest_md5;
310 *digest = &digest_sha1;
313 *digest = &digest_sha256;
316 *digest = &digest_sha384;
319 *digest = &digest_sha512;
329 static int ossltest_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
330 const int **nids, int nid)
334 /* We are returning a list of supported nids */
335 *nids = ossltest_cipher_nids;
336 return (sizeof(ossltest_cipher_nids) - 1)
337 / sizeof(ossltest_cipher_nids[0]);
339 /* We are being asked for a specific cipher */
341 case NID_aes_128_cbc:
342 *cipher = &ossltest_aes_128_cbc;
352 static void fill_known_data(unsigned char *md, unsigned int len)
356 for (i=0; i<len; i++) {
357 md[i] = (unsigned char)(i & 0xff);
362 * MD5 implementation. We go through the motions of doing MD5 by deferring to
363 * the standard implementation. Then we overwrite the result with a will defined
364 * value, so that all "MD5" digests using the test engine always end up with
368 #define data(ctx) ((MD5_CTX *)(ctx)->md_data)
369 static int digest_md5_init(EVP_MD_CTX *ctx)
371 return MD5_Init(data(ctx));
374 static int digest_md5_update(EVP_MD_CTX *ctx, const void *data,
377 return MD5_Update(data(ctx), data, (size_t)count);
380 static int digest_md5_final(EVP_MD_CTX *ctx, unsigned char *md)
383 ret = MD5_Final(md, data(ctx));
386 fill_known_data(md, MD5_DIGEST_LENGTH);
392 * SHA1 implementation.
395 #define data(ctx) ((SHA_CTX *)(ctx)->md_data)
396 static int digest_sha1_init(EVP_MD_CTX *ctx)
398 return SHA1_Init(data(ctx));
401 static int digest_sha1_update(EVP_MD_CTX *ctx, const void *data,
404 return SHA1_Update(data(ctx), data, (size_t)count);
407 static int digest_sha1_final(EVP_MD_CTX *ctx, unsigned char *md)
410 ret = SHA1_Final(md, data(ctx));
413 fill_known_data(md, SHA_DIGEST_LENGTH);
419 * SHA256 implementation.
422 #define data(ctx) ((SHA256_CTX *)(ctx)->md_data)
423 static int digest_sha256_init(EVP_MD_CTX *ctx)
425 return SHA256_Init(data(ctx));
428 static int digest_sha256_update(EVP_MD_CTX *ctx, const void *data,
431 return SHA256_Update(data(ctx), data, (size_t)count);
434 static int digest_sha256_final(EVP_MD_CTX *ctx, unsigned char *md)
437 ret = SHA256_Final(md, data(ctx));
440 fill_known_data(md, SHA256_DIGEST_LENGTH);
446 * SHA384/512 implementation.
449 #define data(ctx) ((SHA512_CTX *)(ctx)->md_data)
450 static int digest_sha384_init(EVP_MD_CTX *ctx)
452 return SHA384_Init(data(ctx));
455 static int digest_sha512_init(EVP_MD_CTX *ctx)
457 return SHA512_Init(data(ctx));
460 static int digest_sha512_update(EVP_MD_CTX *ctx, const void *data,
463 return SHA512_Update(data(ctx), data, (size_t)count);
466 static int digest_sha384_final(EVP_MD_CTX *ctx, unsigned char *md)
469 /* Actually uses SHA512_Final! */
470 ret = SHA512_Final(md, data(ctx));
473 fill_known_data(md, SHA384_DIGEST_LENGTH);
478 static int digest_sha512_final(EVP_MD_CTX *ctx, unsigned char *md)
481 ret = SHA512_Final(md, data(ctx));
484 fill_known_data(md, SHA512_DIGEST_LENGTH);
490 * AES128 Implementation
493 int ossltest_aes128_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
494 const unsigned char *iv, int enc)
496 if (ctx->cipher_data == NULL) {
498 * Normally cipher_data is allocated automatically for an engine but
499 * we don't know the ctx_size as compile time so we have to do it at
502 ctx->cipher_data = OPENSSL_zalloc(EVP_aes_128_cbc()->ctx_size);
503 if (ctx->cipher_data == NULL) {
504 OSSLTESTerr(OSSLTEST_F_OSSLTEST_AES128_INIT_KEY,
505 ERR_R_MALLOC_FAILURE);
509 return EVP_aes_128_cbc()->init(ctx, key, iv, enc);
512 int ossltest_aes128_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
513 const unsigned char *in, size_t inl)
515 unsigned char *tmpbuf;
518 tmpbuf = OPENSSL_malloc(inl);
522 /* Remember what we were asked to encrypt */
523 memcpy(tmpbuf, in, inl);
525 /* Go through the motions of encrypting it */
526 ret = EVP_aes_128_cbc()->do_cipher(ctx, out, in, inl);
528 /* Throw it all away and just use the plaintext as the output */
529 memcpy(out, tmpbuf, inl);
530 OPENSSL_free(tmpbuf);