openssl/crypto/evp/evp_locl.h
Dr. Stephen Henson 1358835050 Change the EVP_somecipher() and EVP_somedigest()
functions to return constant EVP_MD and EVP_CIPHER
pointers.

Update docs.
2001-03-09 02:51:02 +00:00

169 lines
6.2 KiB
C

/* evp_locl.h */
/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
* project 2000.
*/
/* ====================================================================
* Copyright (c) 1999 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 product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
/* Macros to code block cipher wrappers */
/* Wrapper functions for each cipher mode */
#define BLOCK_CIPHER_ecb_loop() \
unsigned int i; \
if(inl < 8) return 1;\
inl -= 8; \
for(i=0; i <= inl; i+=8) \
#define BLOCK_CIPHER_func_ecb(cname, cprefix, kname) \
static int cname##_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) \
{\
BLOCK_CIPHER_ecb_loop() \
cprefix##_ecb_encrypt(in + i, out + i, &ctx->c.kname, ctx->encrypt);\
return 1;\
}
#define BLOCK_CIPHER_func_ofb(cname, cprefix, kname) \
static int cname##_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) \
{\
cprefix##_ofb64_encrypt(in, out, (long)inl, &ctx->c.kname, ctx->iv, &ctx->num);\
return 1;\
}
#define BLOCK_CIPHER_func_cbc(cname, cprefix, kname) \
static int cname##_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) \
{\
cprefix##_cbc_encrypt(in, out, (long)inl, &ctx->c.kname, ctx->iv, ctx->encrypt);\
return 1;\
}
#define BLOCK_CIPHER_func_cfb(cname, cprefix, kname) \
static int cname##_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, const unsigned char *in, unsigned int inl) \
{\
cprefix##_cfb64_encrypt(in, out, (long)inl, &ctx->c.kname, ctx->iv, &ctx->num, ctx->encrypt);\
return 1;\
}
#define BLOCK_CIPHER_all_funcs(cname, cprefix, kname) \
BLOCK_CIPHER_func_cbc(cname, cprefix, kname) \
BLOCK_CIPHER_func_cfb(cname, cprefix, kname) \
BLOCK_CIPHER_func_ecb(cname, cprefix, kname) \
BLOCK_CIPHER_func_ofb(cname, cprefix, kname)
#define BLOCK_CIPHER_defs(cname, kstruct, \
nid, block_size, key_len, iv_len, flags,\
init_key, cleanup, set_asn1, get_asn1, ctrl)\
static const EVP_CIPHER cname##_cbc = {\
nid##_cbc, block_size, key_len, iv_len, \
flags | EVP_CIPH_CBC_MODE,\
init_key,\
cname##_cbc_cipher,\
cleanup,\
sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
set_asn1, get_asn1,\
ctrl, \
NULL \
};\
const EVP_CIPHER *EVP_##cname##_cbc(void) { return &cname##_cbc; }\
static const EVP_CIPHER cname##_cfb = {\
nid##_cfb64, 1, key_len, iv_len, \
flags | EVP_CIPH_CFB_MODE,\
init_key,\
cname##_cfb_cipher,\
cleanup,\
sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
set_asn1, get_asn1,\
ctrl,\
NULL \
};\
const EVP_CIPHER *EVP_##cname##_cfb(void) { return &cname##_cfb; }\
static const EVP_CIPHER cname##_ofb = {\
nid##_ofb64, 1, key_len, iv_len, \
flags | EVP_CIPH_OFB_MODE,\
init_key,\
cname##_ofb_cipher,\
cleanup,\
sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
set_asn1, get_asn1,\
ctrl,\
NULL \
};\
const EVP_CIPHER *EVP_##cname##_ofb(void) { return &cname##_ofb; }\
static const EVP_CIPHER cname##_ecb = {\
nid##_ecb, block_size, key_len, iv_len, \
flags | EVP_CIPH_ECB_MODE,\
init_key,\
cname##_ecb_cipher,\
cleanup,\
sizeof(EVP_CIPHER_CTX)-sizeof((((EVP_CIPHER_CTX *)NULL)->c))+\
sizeof((((EVP_CIPHER_CTX *)NULL)->c.kstruct)),\
set_asn1, get_asn1,\
ctrl,\
NULL \
};\
const EVP_CIPHER *EVP_##cname##_ecb(void) { return &cname##_ecb; }
#define IMPLEMENT_BLOCK_CIPHER(cname, kname, cprefix, kstruct, \
nid, block_size, key_len, iv_len, flags, \
init_key, cleanup, set_asn1, get_asn1, ctrl) \
BLOCK_CIPHER_all_funcs(cname, cprefix, kname) \
BLOCK_CIPHER_defs(cname, kstruct, nid, block_size, key_len, iv_len, flags,\
init_key, cleanup, set_asn1, get_asn1, ctrl)