diff options
Diffstat (limited to 'source4/heimdal/lib/hcrypto/evp.c')
| -rw-r--r-- | source4/heimdal/lib/hcrypto/evp.c | 105 |
1 files changed, 71 insertions, 34 deletions
diff --git a/source4/heimdal/lib/hcrypto/evp.c b/source4/heimdal/lib/hcrypto/evp.c index 42b7c6da0b..517ca2a2bc 100644 --- a/source4/heimdal/lib/hcrypto/evp.c +++ b/source4/heimdal/lib/hcrypto/evp.c @@ -1,34 +1,34 @@ /* - * Copyright (c) 2006 - 2007 Kungliga Tekniska Högskolan - * (Royal Institute of Technology, Stockholm, Sweden). - * 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. Neither the name of the Institute nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS 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 INSTITUTE OR 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. + * Copyright (c) 2006 - 2007 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * 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. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS 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 INSTITUTE OR 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. */ #ifdef HAVE_CONFIG_H @@ -72,7 +72,7 @@ RCSID("$Id$"); * example_evp_cipher.c . * * @example example_evp_cipher.c - * + * * This is an example how to use EVP_CipherInit_ex(), * EVP_CipherUpdate() and EVP_CipherFinal_ex(). */ @@ -318,7 +318,7 @@ EVP_DigestFinal_ex(EVP_MD_CTX *ctx, void *hash, unsigned int *size) */ int -EVP_Digest(const void *data, size_t dsize, void *hash, unsigned int *hsize, +EVP_Digest(const void *data, size_t dsize, void *hash, unsigned int *hsize, const EVP_MD *md, ENGINE *engine) { EVP_MD_CTX *ctx; @@ -832,7 +832,7 @@ EVP_CipherUpdate(EVP_CIPHER_CTX *ctx, void *out, int *outlen, void *in, size_t inlen) { int ret, left, blocksize; - + *outlen = 0; /** @@ -1549,7 +1549,7 @@ EVP_get_cipherbyname(const char *name) int EVP_BytesToKey(const EVP_CIPHER *type, - const EVP_MD *md, + const EVP_MD *md, const void *salt, const void *data, size_t datalen, unsigned int count, @@ -1627,6 +1627,43 @@ EVP_BytesToKey(const EVP_CIPHER *type, } /** + * Generate a random key for the specificed EVP_CIPHER. + * + * @param ctx EVP_CIPHER_CTX type to build the key for. + * @param key return key, must be at least EVP_CIPHER_key_length() byte long. + * + * @return 1 for success, 0 for failure. + * + * @ingroup hcrypto_core + */ + +int +EVP_CIPHER_CTX_rand_key(EVP_CIPHER_CTX *ctx, void *key) +{ + if (ctx->cipher->flags & EVP_CIPH_RAND_KEY) + return EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_RAND_KEY, 0, key); + if (RAND_bytes(key, ctx->key_len) != 1) + return 0; + return 1; +} + +/** + * Perform a operation on a ctx + * + * @return 1 for success, 0 for failure. + * + * @ingroup hcrypto_core + */ + +int +EVP_CIPHER_CTX_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *data) +{ + if (ctx->cipher == NULL || ctx->cipher->ctrl == NULL) + return 0; + return (*ctx->cipher->ctrl)(ctx, type, arg, data); +} + +/** * Add all algorithms to the crypto core. * * @ingroup hcrypto_core |