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Diffstat (limited to 'engines/e_ossltest.c')
| -rw-r--r-- | engines/e_ossltest.c | 542 |
1 files changed, 542 insertions, 0 deletions
diff --git a/engines/e_ossltest.c b/engines/e_ossltest.c new file mode 100644 index 0000000000..689e5321ca --- /dev/null +++ b/engines/e_ossltest.c @@ -0,0 +1,542 @@ +/* engines/e_ossltest.c */ +/* + * Written by Matt Caswell (matt@openssl.org) for the OpenSSL project. + */ +/* ==================================================================== + * Copyright (c) 2015 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * licensing@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + */ + +/* + * This is the OSSLTEST engine. It provides deliberately crippled digest + * implementations for test purposes. It is highly insecure and must NOT be + * used for any purpose except testing + */ + +#include <stdio.h> +#include <string.h> + +#include <openssl/engine.h> +#include <openssl/sha.h> +#include <openssl/md5.h> +#include <openssl/rsa.h> +#include <openssl/evp.h> +#include <openssl/modes.h> +#include <openssl/aes.h> + +#define OSSLTEST_LIB_NAME "OSSLTEST" +#include "e_ossltest_err.c" + +/* Engine Id and Name */ +static const char *engine_ossltest_id = "ossltest"; +static const char *engine_ossltest_name = "OpenSSL Test engine support"; + + +/* Engine Lifetime functions */ +static int ossltest_destroy(ENGINE *e); +static int ossltest_init(ENGINE *e); +static int ossltest_finish(ENGINE *e); +void ENGINE_load_ossltest(void); + + +/* Set up digests */ +static int ossltest_digests(ENGINE *e, const EVP_MD **digest, + const int **nids, int nid); + +static int ossltest_digest_nids[] = { + NID_md5, NID_sha1, NID_sha256, NID_sha384, NID_sha512, 0 +}; + +/* MD5 */ +static int digest_md5_init(EVP_MD_CTX *ctx); +static int digest_md5_update(EVP_MD_CTX *ctx, const void *data, + unsigned long count); +static int digest_md5_final(EVP_MD_CTX *ctx, unsigned char *md); + +static const EVP_MD digest_md5 = { + NID_md5, + NID_md5WithRSAEncryption, + MD5_DIGEST_LENGTH, + 0, + digest_md5_init, + digest_md5_update, + digest_md5_final, + NULL, + NULL, + EVP_PKEY_RSA_method, + MD5_CBLOCK, + sizeof(EVP_MD *) + sizeof(MD5_CTX), +}; + +/* SHA1 */ +static int digest_sha1_init(EVP_MD_CTX *ctx); +static int digest_sha1_update(EVP_MD_CTX *ctx, const void *data, + unsigned long count); +static int digest_sha1_final(EVP_MD_CTX *ctx, unsigned char *md); + +static const EVP_MD digest_sha1 = { + NID_sha1, + NID_sha1WithRSAEncryption, + SHA_DIGEST_LENGTH, + EVP_MD_FLAG_PKEY_METHOD_SIGNATURE | EVP_MD_FLAG_DIGALGID_ABSENT, + digest_sha1_init, + digest_sha1_update, + digest_sha1_final, + NULL, + NULL, + EVP_PKEY_NULL_method, + SHA_CBLOCK, + sizeof(EVP_MD *) + sizeof(SHA_CTX), +}; + +/* SHA256 */ +static int digest_sha256_init(EVP_MD_CTX *ctx); +static int digest_sha256_update(EVP_MD_CTX *ctx, const void *data, + unsigned long count); +static int digest_sha256_final(EVP_MD_CTX *ctx, unsigned char *md); + +static const EVP_MD digest_sha256 = { + NID_sha256, + NID_sha256WithRSAEncryption, + SHA256_DIGEST_LENGTH, + EVP_MD_FLAG_PKEY_METHOD_SIGNATURE | EVP_MD_FLAG_DIGALGID_ABSENT, + digest_sha256_init, + digest_sha256_update, + digest_sha256_final, + NULL, + NULL, + EVP_PKEY_NULL_method, + SHA256_CBLOCK, + sizeof(EVP_MD *) + sizeof(SHA256_CTX), +}; + +/* SHA384/SHA512 */ +static int digest_sha384_init(EVP_MD_CTX *ctx); +static int digest_sha512_init(EVP_MD_CTX *ctx); +static int digest_sha512_update(EVP_MD_CTX *ctx, const void *data, + unsigned long count); +static int digest_sha384_final(EVP_MD_CTX *ctx, unsigned char *md); +static int digest_sha512_final(EVP_MD_CTX *ctx, unsigned char *md); + +static const EVP_MD digest_sha384 = { + NID_sha384, + NID_sha384WithRSAEncryption, + SHA384_DIGEST_LENGTH, + EVP_MD_FLAG_PKEY_METHOD_SIGNATURE | EVP_MD_FLAG_DIGALGID_ABSENT, + digest_sha384_init, + digest_sha512_update, + digest_sha384_final, + NULL, + NULL, + EVP_PKEY_NULL_method, + SHA512_CBLOCK, + sizeof(EVP_MD *) + sizeof(SHA512_CTX), +}; + +static const EVP_MD digest_sha512 = { + NID_sha512, + NID_sha512WithRSAEncryption, + SHA512_DIGEST_LENGTH, + EVP_MD_FLAG_PKEY_METHOD_SIGNATURE | EVP_MD_FLAG_DIGALGID_ABSENT, + digest_sha512_init, + digest_sha512_update, + digest_sha512_final, + NULL, + NULL, + EVP_PKEY_NULL_method, + SHA512_CBLOCK, + sizeof(EVP_MD *) + sizeof(SHA512_CTX), +}; + +/* Setup ciphers */ +static int ossltest_ciphers(ENGINE *, const EVP_CIPHER **, + const int **, int); + +static int ossltest_cipher_nids[] = { + NID_aes_128_cbc, 0 +}; + +/* AES128 */ + +int ossltest_aes128_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, + const unsigned char *iv, int enc); +int ossltest_aes128_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t inl); + +/* + * Copy of the definition in crypto/evp/e_aes.c. Only used for the "sizeof" + * below + */ +typedef struct { + union { + double align; + AES_KEY ks; + } ks; + block128_f block; + union { + cbc128_f cbc; + ctr128_f ctr; + } stream; +} EVP_AES_KEY; + + +static const EVP_CIPHER ossltest_aes_128_cbc = { \ + NID_aes_128_cbc, + 16, /* block size */ + 16, /* key len */ + 16, /* iv len */ + EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CBC_MODE, + ossltest_aes128_init_key, + ossltest_aes128_cbc_cipher, + NULL, + sizeof(EVP_AES_KEY), + NULL,NULL,NULL,NULL +}; + + +static int bind_ossltest(ENGINE *e) +{ + /* Ensure the ossltest error handling is set up */ + ERR_load_OSSLTEST_strings(); + + if (!ENGINE_set_id(e, engine_ossltest_id) + || !ENGINE_set_name(e, engine_ossltest_name) + || !ENGINE_set_digests(e, ossltest_digests) + || !ENGINE_set_ciphers(e, ossltest_ciphers) + || !ENGINE_set_destroy_function(e, ossltest_destroy) + || !ENGINE_set_init_function(e, ossltest_init) + || !ENGINE_set_finish_function(e, ossltest_finish)) { + OSSLTESTerr(OSSLTEST_F_BIND_OSSLTEST, OSSLTEST_R_INIT_FAILED); + return 0; + } + + return 1; +} + +#ifdef ENGINE_DYNAMIC_SUPPORT +static int bind_helper(ENGINE *e, const char *id) +{ + if (id && (strcmp(id, engine_ossltest_id) != 0)) + return 0; + if (!bind_ossltest(e)) + return 0; + return 1; +} + +IMPLEMENT_DYNAMIC_CHECK_FN() + IMPLEMENT_DYNAMIC_BIND_FN(bind_helper) +#else +static ENGINE *engine_ossltest(void) +{ + ENGINE *ret = ENGINE_new(); + if (!ret) + return NULL; + if (!bind_ossltest(ret)) { + ENGINE_free(ret); + return NULL; + } + return ret; +} + +void ENGINE_load_ossltest(void) +{ + /* Copied from eng_[openssl|dyn].c */ + ENGINE *toadd = engine_ossltest(); + if (!toadd) + return; + ENGINE_add(toadd); + ENGINE_free(toadd); + ERR_clear_error(); +} +#endif + + +static int ossltest_init(ENGINE *e) +{ + return 1; +} + + +static int ossltest_finish(ENGINE *e) +{ + return 1; +} + + +static int ossltest_destroy(ENGINE *e) +{ + ERR_unload_OSSLTEST_strings(); + return 1; +} + +static int ossltest_digests(ENGINE *e, const EVP_MD **digest, + const int **nids, int nid) +{ + int ok = 1; + if (!digest) { + /* We are returning a list of supported nids */ + *nids = ossltest_digest_nids; + return (sizeof(ossltest_digest_nids) - + 1) / sizeof(ossltest_digest_nids[0]); + } + /* We are being asked for a specific digest */ + switch (nid) { + case NID_md5: + *digest = &digest_md5; + break; + case NID_sha1: + *digest = &digest_sha1; + break; + case NID_sha256: + *digest = &digest_sha256; + break; + case NID_sha384: + *digest = &digest_sha384; + break; + case NID_sha512: + *digest = &digest_sha512; + break; + default: + ok = 0; + *digest = NULL; + break; + } + return ok; +} + +static int ossltest_ciphers(ENGINE *e, const EVP_CIPHER **cipher, + const int **nids, int nid) +{ + int ok = 1; + if (!cipher) { + /* We are returning a list of supported nids */ + *nids = ossltest_cipher_nids; + return (sizeof(ossltest_cipher_nids) - 1) + / sizeof(ossltest_cipher_nids[0]); + } + /* We are being asked for a specific cipher */ + switch (nid) { + case NID_aes_128_cbc: + *cipher = &ossltest_aes_128_cbc; + break; + default: + ok = 0; + *cipher = NULL; + break; + } + return ok; +} + +static void fill_known_data(unsigned char *md, unsigned int len) +{ + unsigned int i; + + for (i=0; i<len; i++) { + md[i] = (unsigned char)(i & 0xff); + } +} + +/* + * MD5 implementation. We go through the motions of doing MD5 by deferring to + * the standard implementation. Then we overwrite the result with a will defined + * value, so that all "MD5" digests using the test engine always end up with + * the same value. + */ +#undef data +#define data(ctx) ((MD5_CTX *)(ctx)->md_data) +static int digest_md5_init(EVP_MD_CTX *ctx) +{ + return MD5_Init(data(ctx)); +} + +static int digest_md5_update(EVP_MD_CTX *ctx, const void *data, + unsigned long count) +{ + return MD5_Update(data(ctx), data, (size_t)count); +} + +static int digest_md5_final(EVP_MD_CTX *ctx, unsigned char *md) +{ + int ret; + ret = MD5_Final(md, data(ctx)); + + if (ret > 0) { + fill_known_data(md, MD5_DIGEST_LENGTH); + } + return ret; +} + +/* + * SHA1 implementation. + */ +#undef data +#define data(ctx) ((SHA_CTX *)(ctx)->md_data) +static int digest_sha1_init(EVP_MD_CTX *ctx) +{ + return SHA1_Init(data(ctx)); +} + +static int digest_sha1_update(EVP_MD_CTX *ctx, const void *data, + unsigned long count) +{ + return SHA1_Update(data(ctx), data, (size_t)count); +} + +static int digest_sha1_final(EVP_MD_CTX *ctx, unsigned char *md) +{ + int ret; + ret = SHA1_Final(md, data(ctx)); + + if (ret > 0) { + fill_known_data(md, SHA_DIGEST_LENGTH); + } + return ret; +} + +/* + * SHA256 implementation. + */ +#undef data +#define data(ctx) ((SHA256_CTX *)(ctx)->md_data) +static int digest_sha256_init(EVP_MD_CTX *ctx) +{ + return SHA256_Init(data(ctx)); +} + +static int digest_sha256_update(EVP_MD_CTX *ctx, const void *data, + unsigned long count) +{ + return SHA256_Update(data(ctx), data, (size_t)count); +} + +static int digest_sha256_final(EVP_MD_CTX *ctx, unsigned char *md) +{ + int ret; + ret = SHA256_Final(md, data(ctx)); + + if (ret > 0) { + fill_known_data(md, SHA256_DIGEST_LENGTH); + } + return ret; +} + +/* + * SHA384/512 implementation. + */ +#undef data +#define data(ctx) ((SHA512_CTX *)(ctx)->md_data) +static int digest_sha384_init(EVP_MD_CTX *ctx) +{ + return SHA384_Init(data(ctx)); +} + +static int digest_sha512_init(EVP_MD_CTX *ctx) +{ + return SHA512_Init(data(ctx)); +} + +static int digest_sha512_update(EVP_MD_CTX *ctx, const void *data, + unsigned long count) +{ + return SHA512_Update(data(ctx), data, (size_t)count); +} + +static int digest_sha384_final(EVP_MD_CTX *ctx, unsigned char *md) +{ + int ret; + /* Actually uses SHA512_Final! */ + ret = SHA512_Final(md, data(ctx)); + + if (ret > 0) { + fill_known_data(md, SHA384_DIGEST_LENGTH); + } + return ret; +} + +static int digest_sha512_final(EVP_MD_CTX *ctx, unsigned char *md) +{ + int ret; + ret = SHA512_Final(md, data(ctx)); + + if (ret > 0) { + fill_known_data(md, SHA512_DIGEST_LENGTH); + } + return ret; +} + +/* + * AES128 Implementation + */ + +int ossltest_aes128_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, + const unsigned char *iv, int enc) +{ + return EVP_aes_128_cbc()->init(ctx, key, iv, enc); +} + +int ossltest_aes128_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t inl) +{ + unsigned char *tmpbuf; + int ret; + + tmpbuf = OPENSSL_malloc(inl); + if (tmpbuf == NULL) + return -1; + + /* Remember what we were asked to encrypt */ + memcpy(tmpbuf, in, inl); + + /* Go through the motions of encrypting it */ + ret = EVP_aes_128_cbc()->do_cipher(ctx, out, in, inl); + + /* Throw it all away and just use the plaintext as the output */ + memcpy(out, tmpbuf, inl); + OPENSSL_free(tmpbuf); + + return ret; +} |