1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/ossrv/ssl/libcrypto/src/crypto/evp/evp_lib.c Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,279 @@
1.4 +/* crypto/evp/evp_lib.c */
1.5 +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
1.6 + * All rights reserved.
1.7 + *
1.8 + * This package is an SSL implementation written
1.9 + * by Eric Young (eay@cryptsoft.com).
1.10 + * The implementation was written so as to conform with Netscapes SSL.
1.11 + *
1.12 + * This library is free for commercial and non-commercial use as long as
1.13 + * the following conditions are aheared to. The following conditions
1.14 + * apply to all code found in this distribution, be it the RC4, RSA,
1.15 + * lhash, DES, etc., code; not just the SSL code. The SSL documentation
1.16 + * included with this distribution is covered by the same copyright terms
1.17 + * except that the holder is Tim Hudson (tjh@cryptsoft.com).
1.18 + *
1.19 + * Copyright remains Eric Young's, and as such any Copyright notices in
1.20 + * the code are not to be removed.
1.21 + * If this package is used in a product, Eric Young should be given attribution
1.22 + * as the author of the parts of the library used.
1.23 + * This can be in the form of a textual message at program startup or
1.24 + * in documentation (online or textual) provided with the package.
1.25 + *
1.26 + * Redistribution and use in source and binary forms, with or without
1.27 + * modification, are permitted provided that the following conditions
1.28 + * are met:
1.29 + * 1. Redistributions of source code must retain the copyright
1.30 + * notice, this list of conditions and the following disclaimer.
1.31 + * 2. Redistributions in binary form must reproduce the above copyright
1.32 + * notice, this list of conditions and the following disclaimer in the
1.33 + * documentation and/or other materials provided with the distribution.
1.34 + * 3. All advertising materials mentioning features or use of this software
1.35 + * must display the following acknowledgement:
1.36 + * "This product includes cryptographic software written by
1.37 + * Eric Young (eay@cryptsoft.com)"
1.38 + * The word 'cryptographic' can be left out if the rouines from the library
1.39 + * being used are not cryptographic related :-).
1.40 + * 4. If you include any Windows specific code (or a derivative thereof) from
1.41 + * the apps directory (application code) you must include an acknowledgement:
1.42 + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
1.43 + *
1.44 + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
1.45 + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.46 + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.47 + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
1.48 + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1.49 + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
1.50 + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1.51 + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
1.52 + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
1.53 + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
1.54 + * SUCH DAMAGE.
1.55 + *
1.56 + * The licence and distribution terms for any publically available version or
1.57 + * derivative of this code cannot be changed. i.e. this code cannot simply be
1.58 + * copied and put under another distribution licence
1.59 + * [including the GNU Public Licence.]
1.60 + */
1.61 +
1.62 +#include <stdio.h>
1.63 +#include "cryptlib.h"
1.64 +#include <openssl/evp.h>
1.65 +#include <openssl/objects.h>
1.66 +
1.67 +EXPORT_C int EVP_CIPHER_param_to_asn1(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
1.68 + {
1.69 + int ret;
1.70 +
1.71 + if (c->cipher->set_asn1_parameters != NULL)
1.72 + ret=c->cipher->set_asn1_parameters(c,type);
1.73 + else
1.74 + ret=-1;
1.75 + return(ret);
1.76 + }
1.77 +
1.78 +EXPORT_C int EVP_CIPHER_asn1_to_param(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
1.79 + {
1.80 + int ret;
1.81 +
1.82 + if (c->cipher->get_asn1_parameters != NULL)
1.83 + ret=c->cipher->get_asn1_parameters(c,type);
1.84 + else
1.85 + ret=-1;
1.86 + return(ret);
1.87 + }
1.88 +
1.89 +EXPORT_C int EVP_CIPHER_get_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
1.90 + {
1.91 + int i=0;
1.92 + unsigned int l;
1.93 +
1.94 + if (type != NULL)
1.95 + {
1.96 + l=EVP_CIPHER_CTX_iv_length(c);
1.97 + OPENSSL_assert(l <= sizeof(c->iv));
1.98 + i=ASN1_TYPE_get_octetstring(type,c->oiv,l);
1.99 + if (i != (int)l)
1.100 + return(-1);
1.101 + else if (i > 0)
1.102 + memcpy(c->iv,c->oiv,l);
1.103 + }
1.104 + return(i);
1.105 + }
1.106 +
1.107 +EXPORT_C int EVP_CIPHER_set_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type)
1.108 + {
1.109 + int i=0;
1.110 + unsigned int j;
1.111 +
1.112 + if (type != NULL)
1.113 + {
1.114 + j=EVP_CIPHER_CTX_iv_length(c);
1.115 + OPENSSL_assert(j <= sizeof(c->iv));
1.116 + i=ASN1_TYPE_set_octetstring(type,c->oiv,j);
1.117 + }
1.118 + return(i);
1.119 + }
1.120 +
1.121 +/* Convert the various cipher NIDs and dummies to a proper OID NID */
1.122 +EXPORT_C int EVP_CIPHER_type(const EVP_CIPHER *ctx)
1.123 +{
1.124 + int nid;
1.125 + ASN1_OBJECT *otmp;
1.126 + nid = EVP_CIPHER_nid(ctx);
1.127 +
1.128 + switch(nid) {
1.129 +
1.130 + case NID_rc2_cbc:
1.131 + case NID_rc2_64_cbc:
1.132 + case NID_rc2_40_cbc:
1.133 +
1.134 + return NID_rc2_cbc;
1.135 +
1.136 + case NID_rc4:
1.137 + case NID_rc4_40:
1.138 +
1.139 + return NID_rc4;
1.140 +
1.141 + case NID_aes_128_cfb128:
1.142 + case NID_aes_128_cfb8:
1.143 + case NID_aes_128_cfb1:
1.144 +
1.145 + return NID_aes_128_cfb128;
1.146 +
1.147 + case NID_aes_192_cfb128:
1.148 + case NID_aes_192_cfb8:
1.149 + case NID_aes_192_cfb1:
1.150 +
1.151 + return NID_aes_192_cfb128;
1.152 +
1.153 + case NID_aes_256_cfb128:
1.154 + case NID_aes_256_cfb8:
1.155 + case NID_aes_256_cfb1:
1.156 +
1.157 + return NID_aes_256_cfb128;
1.158 +
1.159 + case NID_des_cfb64:
1.160 + case NID_des_cfb8:
1.161 + case NID_des_cfb1:
1.162 +
1.163 + return NID_des_cfb64;
1.164 +
1.165 + default:
1.166 + /* Check it has an OID and it is valid */
1.167 + otmp = OBJ_nid2obj(nid);
1.168 + if(!otmp || !otmp->data) nid = NID_undef;
1.169 + ASN1_OBJECT_free(otmp);
1.170 + return nid;
1.171 + }
1.172 +}
1.173 +
1.174 +EXPORT_C int EVP_CIPHER_block_size(const EVP_CIPHER *e)
1.175 + {
1.176 + return e->block_size;
1.177 + }
1.178 +
1.179 +EXPORT_C int EVP_CIPHER_CTX_block_size(const EVP_CIPHER_CTX *ctx)
1.180 + {
1.181 + return ctx->cipher->block_size;
1.182 + }
1.183 +
1.184 +EXPORT_C int EVP_Cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl)
1.185 + {
1.186 + return ctx->cipher->do_cipher(ctx,out,in,inl);
1.187 + }
1.188 +
1.189 +EXPORT_C const EVP_CIPHER *EVP_CIPHER_CTX_cipher(const EVP_CIPHER_CTX *ctx)
1.190 + {
1.191 + return ctx->cipher;
1.192 + }
1.193 +
1.194 +EXPORT_C unsigned long EVP_CIPHER_flags(const EVP_CIPHER *cipher)
1.195 + {
1.196 + return cipher->flags;
1.197 + }
1.198 +
1.199 +EXPORT_C unsigned long EVP_CIPHER_CTX_flags(const EVP_CIPHER_CTX *ctx)
1.200 + {
1.201 + return ctx->cipher->flags;
1.202 + }
1.203 +
1.204 +EXPORT_C void *EVP_CIPHER_CTX_get_app_data(const EVP_CIPHER_CTX *ctx)
1.205 + {
1.206 + return ctx->app_data;
1.207 + }
1.208 +
1.209 +EXPORT_C void EVP_CIPHER_CTX_set_app_data(EVP_CIPHER_CTX *ctx, void *data)
1.210 + {
1.211 + ctx->app_data = data;
1.212 + }
1.213 +
1.214 +EXPORT_C int EVP_CIPHER_iv_length(const EVP_CIPHER *cipher)
1.215 + {
1.216 + return cipher->iv_len;
1.217 + }
1.218 +
1.219 +EXPORT_C int EVP_CIPHER_CTX_iv_length(const EVP_CIPHER_CTX *ctx)
1.220 + {
1.221 + return ctx->cipher->iv_len;
1.222 + }
1.223 +
1.224 +EXPORT_C int EVP_CIPHER_key_length(const EVP_CIPHER *cipher)
1.225 + {
1.226 + return cipher->key_len;
1.227 + }
1.228 +
1.229 +EXPORT_C int EVP_CIPHER_CTX_key_length(const EVP_CIPHER_CTX *ctx)
1.230 + {
1.231 + return ctx->key_len;
1.232 + }
1.233 +
1.234 +EXPORT_C int EVP_CIPHER_nid(const EVP_CIPHER *cipher)
1.235 + {
1.236 + return cipher->nid;
1.237 + }
1.238 +
1.239 +EXPORT_C int EVP_CIPHER_CTX_nid(const EVP_CIPHER_CTX *ctx)
1.240 + {
1.241 + return ctx->cipher->nid;
1.242 + }
1.243 +
1.244 +EXPORT_C int EVP_MD_block_size(const EVP_MD *md)
1.245 + {
1.246 + return md->block_size;
1.247 + }
1.248 +
1.249 +EXPORT_C int EVP_MD_type(const EVP_MD *md)
1.250 + {
1.251 + return md->type;
1.252 + }
1.253 +
1.254 +EXPORT_C int EVP_MD_pkey_type(const EVP_MD *md)
1.255 + {
1.256 + return md->pkey_type;
1.257 + }
1.258 +
1.259 +EXPORT_C int EVP_MD_size(const EVP_MD *md)
1.260 + {
1.261 + return md->md_size;
1.262 + }
1.263 +
1.264 +EXPORT_C const EVP_MD * EVP_MD_CTX_md(const EVP_MD_CTX *ctx)
1.265 + {
1.266 + return ctx->digest;
1.267 + }
1.268 +
1.269 +EXPORT_C void EVP_MD_CTX_set_flags(EVP_MD_CTX *ctx, int flags)
1.270 + {
1.271 + ctx->flags |= flags;
1.272 + }
1.273 +
1.274 +EXPORT_C void EVP_MD_CTX_clear_flags(EVP_MD_CTX *ctx, int flags)
1.275 + {
1.276 + ctx->flags &= ~flags;
1.277 + }
1.278 +
1.279 +EXPORT_C int EVP_MD_CTX_test_flags(const EVP_MD_CTX *ctx, int flags)
1.280 + {
1.281 + return (ctx->flags & flags);
1.282 + }