diff options
Diffstat (limited to 'src/lib/libcrypto/evp/evp_lib.c')
| -rw-r--r-- | src/lib/libcrypto/evp/evp_lib.c | 279 |
1 files changed, 279 insertions, 0 deletions
diff --git a/src/lib/libcrypto/evp/evp_lib.c b/src/lib/libcrypto/evp/evp_lib.c new file mode 100644 index 0000000000..edb28ef38e --- /dev/null +++ b/src/lib/libcrypto/evp/evp_lib.c | |||
| @@ -0,0 +1,279 @@ | |||
| 1 | /* crypto/evp/evp_lib.c */ | ||
| 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | ||
| 3 | * All rights reserved. | ||
| 4 | * | ||
| 5 | * This package is an SSL implementation written | ||
| 6 | * by Eric Young (eay@cryptsoft.com). | ||
| 7 | * The implementation was written so as to conform with Netscapes SSL. | ||
| 8 | * | ||
| 9 | * This library is free for commercial and non-commercial use as long as | ||
| 10 | * the following conditions are aheared to. The following conditions | ||
| 11 | * apply to all code found in this distribution, be it the RC4, RSA, | ||
| 12 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | ||
| 13 | * included with this distribution is covered by the same copyright terms | ||
| 14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | ||
| 15 | * | ||
| 16 | * Copyright remains Eric Young's, and as such any Copyright notices in | ||
| 17 | * the code are not to be removed. | ||
| 18 | * If this package is used in a product, Eric Young should be given attribution | ||
| 19 | * as the author of the parts of the library used. | ||
| 20 | * This can be in the form of a textual message at program startup or | ||
| 21 | * in documentation (online or textual) provided with the package. | ||
| 22 | * | ||
| 23 | * Redistribution and use in source and binary forms, with or without | ||
| 24 | * modification, are permitted provided that the following conditions | ||
| 25 | * are met: | ||
| 26 | * 1. Redistributions of source code must retain the copyright | ||
| 27 | * notice, this list of conditions and the following disclaimer. | ||
| 28 | * 2. Redistributions in binary form must reproduce the above copyright | ||
| 29 | * notice, this list of conditions and the following disclaimer in the | ||
| 30 | * documentation and/or other materials provided with the distribution. | ||
| 31 | * 3. All advertising materials mentioning features or use of this software | ||
| 32 | * must display the following acknowledgement: | ||
| 33 | * "This product includes cryptographic software written by | ||
| 34 | * Eric Young (eay@cryptsoft.com)" | ||
| 35 | * The word 'cryptographic' can be left out if the rouines from the library | ||
| 36 | * being used are not cryptographic related :-). | ||
| 37 | * 4. If you include any Windows specific code (or a derivative thereof) from | ||
| 38 | * the apps directory (application code) you must include an acknowledgement: | ||
| 39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | ||
| 40 | * | ||
| 41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | ||
| 42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| 43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
| 44 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | ||
| 45 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
| 46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
| 47 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| 48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
| 49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
| 50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
| 51 | * SUCH DAMAGE. | ||
| 52 | * | ||
| 53 | * The licence and distribution terms for any publically available version or | ||
| 54 | * derivative of this code cannot be changed. i.e. this code cannot simply be | ||
| 55 | * copied and put under another distribution licence | ||
| 56 | * [including the GNU Public Licence.] | ||
| 57 | */ | ||
| 58 | |||
| 59 | #include <stdio.h> | ||
| 60 | #include "cryptlib.h" | ||
| 61 | #include <openssl/evp.h> | ||
| 62 | #include <openssl/objects.h> | ||
| 63 | |||
| 64 | int EVP_CIPHER_param_to_asn1(EVP_CIPHER_CTX *c, ASN1_TYPE *type) | ||
| 65 | { | ||
| 66 | int ret; | ||
| 67 | |||
| 68 | if (c->cipher->set_asn1_parameters != NULL) | ||
| 69 | ret=c->cipher->set_asn1_parameters(c,type); | ||
| 70 | else | ||
| 71 | ret=-1; | ||
| 72 | return(ret); | ||
| 73 | } | ||
| 74 | |||
| 75 | int EVP_CIPHER_asn1_to_param(EVP_CIPHER_CTX *c, ASN1_TYPE *type) | ||
| 76 | { | ||
| 77 | int ret; | ||
| 78 | |||
| 79 | if (c->cipher->get_asn1_parameters != NULL) | ||
| 80 | ret=c->cipher->get_asn1_parameters(c,type); | ||
| 81 | else | ||
| 82 | ret=-1; | ||
| 83 | return(ret); | ||
| 84 | } | ||
| 85 | |||
| 86 | int EVP_CIPHER_get_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type) | ||
| 87 | { | ||
| 88 | int i=0; | ||
| 89 | unsigned int l; | ||
| 90 | |||
| 91 | if (type != NULL) | ||
| 92 | { | ||
| 93 | l=EVP_CIPHER_CTX_iv_length(c); | ||
| 94 | OPENSSL_assert(l <= sizeof(c->iv)); | ||
| 95 | i=ASN1_TYPE_get_octetstring(type,c->oiv,l); | ||
| 96 | if (i != (int)l) | ||
| 97 | return(-1); | ||
| 98 | else if (i > 0) | ||
| 99 | memcpy(c->iv,c->oiv,l); | ||
| 100 | } | ||
| 101 | return(i); | ||
| 102 | } | ||
| 103 | |||
| 104 | int EVP_CIPHER_set_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type) | ||
| 105 | { | ||
| 106 | int i=0; | ||
| 107 | unsigned int j; | ||
| 108 | |||
| 109 | if (type != NULL) | ||
| 110 | { | ||
| 111 | j=EVP_CIPHER_CTX_iv_length(c); | ||
| 112 | OPENSSL_assert(j <= sizeof(c->iv)); | ||
| 113 | i=ASN1_TYPE_set_octetstring(type,c->oiv,j); | ||
| 114 | } | ||
| 115 | return(i); | ||
| 116 | } | ||
| 117 | |||
| 118 | /* Convert the various cipher NIDs and dummies to a proper OID NID */ | ||
| 119 | int EVP_CIPHER_type(const EVP_CIPHER *ctx) | ||
| 120 | { | ||
| 121 | int nid; | ||
| 122 | ASN1_OBJECT *otmp; | ||
| 123 | nid = EVP_CIPHER_nid(ctx); | ||
| 124 | |||
| 125 | switch(nid) { | ||
| 126 | |||
| 127 | case NID_rc2_cbc: | ||
| 128 | case NID_rc2_64_cbc: | ||
| 129 | case NID_rc2_40_cbc: | ||
| 130 | |||
| 131 | return NID_rc2_cbc; | ||
| 132 | |||
| 133 | case NID_rc4: | ||
| 134 | case NID_rc4_40: | ||
| 135 | |||
| 136 | return NID_rc4; | ||
| 137 | |||
| 138 | case NID_aes_128_cfb128: | ||
| 139 | case NID_aes_128_cfb8: | ||
| 140 | case NID_aes_128_cfb1: | ||
| 141 | |||
| 142 | return NID_aes_128_cfb128; | ||
| 143 | |||
| 144 | case NID_aes_192_cfb128: | ||
| 145 | case NID_aes_192_cfb8: | ||
| 146 | case NID_aes_192_cfb1: | ||
| 147 | |||
| 148 | return NID_aes_192_cfb128; | ||
| 149 | |||
| 150 | case NID_aes_256_cfb128: | ||
| 151 | case NID_aes_256_cfb8: | ||
| 152 | case NID_aes_256_cfb1: | ||
| 153 | |||
| 154 | return NID_aes_256_cfb128; | ||
| 155 | |||
| 156 | case NID_des_cfb64: | ||
| 157 | case NID_des_cfb8: | ||
| 158 | case NID_des_cfb1: | ||
| 159 | |||
| 160 | return NID_des_cfb64; | ||
| 161 | |||
| 162 | default: | ||
| 163 | /* Check it has an OID and it is valid */ | ||
| 164 | otmp = OBJ_nid2obj(nid); | ||
| 165 | if(!otmp || !otmp->data) nid = NID_undef; | ||
| 166 | ASN1_OBJECT_free(otmp); | ||
| 167 | return nid; | ||
| 168 | } | ||
| 169 | } | ||
| 170 | |||
| 171 | int EVP_CIPHER_block_size(const EVP_CIPHER *e) | ||
| 172 | { | ||
| 173 | return e->block_size; | ||
| 174 | } | ||
| 175 | |||
| 176 | int EVP_CIPHER_CTX_block_size(const EVP_CIPHER_CTX *ctx) | ||
| 177 | { | ||
| 178 | return ctx->cipher->block_size; | ||
| 179 | } | ||
| 180 | |||
| 181 | int EVP_Cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) | ||
| 182 | { | ||
| 183 | return ctx->cipher->do_cipher(ctx,out,in,inl); | ||
| 184 | } | ||
| 185 | |||
| 186 | const EVP_CIPHER *EVP_CIPHER_CTX_cipher(const EVP_CIPHER_CTX *ctx) | ||
| 187 | { | ||
| 188 | return ctx->cipher; | ||
| 189 | } | ||
| 190 | |||
| 191 | unsigned long EVP_CIPHER_flags(const EVP_CIPHER *cipher) | ||
| 192 | { | ||
| 193 | return cipher->flags; | ||
| 194 | } | ||
| 195 | |||
| 196 | unsigned long EVP_CIPHER_CTX_flags(const EVP_CIPHER_CTX *ctx) | ||
| 197 | { | ||
| 198 | return ctx->cipher->flags; | ||
| 199 | } | ||
| 200 | |||
| 201 | void *EVP_CIPHER_CTX_get_app_data(const EVP_CIPHER_CTX *ctx) | ||
| 202 | { | ||
| 203 | return ctx->app_data; | ||
| 204 | } | ||
| 205 | |||
| 206 | void EVP_CIPHER_CTX_set_app_data(EVP_CIPHER_CTX *ctx, void *data) | ||
| 207 | { | ||
| 208 | ctx->app_data = data; | ||
| 209 | } | ||
| 210 | |||
| 211 | int EVP_CIPHER_iv_length(const EVP_CIPHER *cipher) | ||
| 212 | { | ||
| 213 | return cipher->iv_len; | ||
| 214 | } | ||
| 215 | |||
| 216 | int EVP_CIPHER_CTX_iv_length(const EVP_CIPHER_CTX *ctx) | ||
| 217 | { | ||
| 218 | return ctx->cipher->iv_len; | ||
| 219 | } | ||
| 220 | |||
| 221 | int EVP_CIPHER_key_length(const EVP_CIPHER *cipher) | ||
| 222 | { | ||
| 223 | return cipher->key_len; | ||
| 224 | } | ||
| 225 | |||
| 226 | int EVP_CIPHER_CTX_key_length(const EVP_CIPHER_CTX *ctx) | ||
| 227 | { | ||
| 228 | return ctx->key_len; | ||
| 229 | } | ||
| 230 | |||
| 231 | int EVP_CIPHER_nid(const EVP_CIPHER *cipher) | ||
| 232 | { | ||
| 233 | return cipher->nid; | ||
| 234 | } | ||
| 235 | |||
| 236 | int EVP_CIPHER_CTX_nid(const EVP_CIPHER_CTX *ctx) | ||
| 237 | { | ||
| 238 | return ctx->cipher->nid; | ||
| 239 | } | ||
| 240 | |||
| 241 | int EVP_MD_block_size(const EVP_MD *md) | ||
| 242 | { | ||
| 243 | return md->block_size; | ||
| 244 | } | ||
| 245 | |||
| 246 | int EVP_MD_type(const EVP_MD *md) | ||
| 247 | { | ||
| 248 | return md->type; | ||
| 249 | } | ||
| 250 | |||
| 251 | int EVP_MD_pkey_type(const EVP_MD *md) | ||
| 252 | { | ||
| 253 | return md->pkey_type; | ||
| 254 | } | ||
| 255 | |||
| 256 | int EVP_MD_size(const EVP_MD *md) | ||
| 257 | { | ||
| 258 | return md->md_size; | ||
| 259 | } | ||
| 260 | |||
| 261 | const EVP_MD * EVP_MD_CTX_md(const EVP_MD_CTX *ctx) | ||
| 262 | { | ||
| 263 | return ctx->digest; | ||
| 264 | } | ||
| 265 | |||
| 266 | void EVP_MD_CTX_set_flags(EVP_MD_CTX *ctx, int flags) | ||
| 267 | { | ||
| 268 | ctx->flags |= flags; | ||
| 269 | } | ||
| 270 | |||
| 271 | void EVP_MD_CTX_clear_flags(EVP_MD_CTX *ctx, int flags) | ||
| 272 | { | ||
| 273 | ctx->flags &= ~flags; | ||
| 274 | } | ||
| 275 | |||
| 276 | int EVP_MD_CTX_test_flags(const EVP_MD_CTX *ctx, int flags) | ||
| 277 | { | ||
| 278 | return (ctx->flags & flags); | ||
| 279 | } | ||
