113 lines
4.6 KiB
C
113 lines
4.6 KiB
C
|
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* This package is an SSL implementation written
|
||
|
|
* by Eric Young (eay@cryptsoft.com).
|
||
|
|
* The implementation was written so as to conform with Netscapes SSL.
|
||
|
|
*
|
||
|
|
* This library is free for commercial and non-commercial use as long as
|
||
|
|
* the following conditions are aheared to. The following conditions
|
||
|
|
* apply to all code found in this distribution, be it the RC4, RSA,
|
||
|
|
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
|
||
|
|
* included with this distribution is covered by the same copyright terms
|
||
|
|
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
|
||
|
|
*
|
||
|
|
* Copyright remains Eric Young's, and as such any Copyright notices in
|
||
|
|
* the code are not to be removed.
|
||
|
|
* If this package is used in a product, Eric Young should be given attribution
|
||
|
|
* as the author of the parts of the library used.
|
||
|
|
* This can be in the form of a textual message at program startup or
|
||
|
|
* in documentation (online or textual) provided with the package.
|
||
|
|
*
|
||
|
|
* 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 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 acknowledgement:
|
||
|
|
* "This product includes cryptographic software written by
|
||
|
|
* Eric Young (eay@cryptsoft.com)"
|
||
|
|
* The word 'cryptographic' can be left out if the rouines from the library
|
||
|
|
* being used are not cryptographic related :-).
|
||
|
|
* 4. If you include any Windows specific code (or a derivative thereof) from
|
||
|
|
* the apps directory (application code) you must include an acknowledgement:
|
||
|
|
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 AUTHOR 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.
|
||
|
|
*
|
||
|
|
* The licence and distribution terms for any publically available version or
|
||
|
|
* derivative of this code cannot be changed. i.e. this code cannot simply be
|
||
|
|
* copied and put under another distribution licence
|
||
|
|
* [including the GNU Public Licence.] */
|
||
|
|
|
||
|
|
#ifndef OPENSSL_HEADER_DIGEST_INTERNAL_H
|
||
|
|
#define OPENSSL_HEADER_DIGEST_INTERNAL_H
|
||
|
|
|
||
|
|
#include <openssl/base.h>
|
||
|
|
|
||
|
|
#if defined(__cplusplus)
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
struct env_md_st {
|
||
|
|
/* type contains a NID identifing the digest function. (For example,
|
||
|
|
* NID_md5.) */
|
||
|
|
int type;
|
||
|
|
|
||
|
|
/* md_size contains the size, in bytes, of the resulting digest. */
|
||
|
|
unsigned md_size;
|
||
|
|
|
||
|
|
/* flags contains the OR of |EVP_MD_FLAG_*| values. */
|
||
|
|
uint32_t flags;
|
||
|
|
|
||
|
|
/* init initialises the state in |ctx->md_data|. */
|
||
|
|
void (*init)(EVP_MD_CTX *ctx);
|
||
|
|
|
||
|
|
/* update hashes |len| bytes of |data| into the state in |ctx->md_data|. */
|
||
|
|
void (*update)(EVP_MD_CTX *ctx, const void *data, size_t count);
|
||
|
|
|
||
|
|
/* final completes the hash and writes |md_size| bytes of digest to |out|. */
|
||
|
|
void (*final)(EVP_MD_CTX *ctx, uint8_t *out);
|
||
|
|
|
||
|
|
/* block_size contains the hash's native block size. */
|
||
|
|
unsigned block_size;
|
||
|
|
|
||
|
|
/* ctx_size contains the size, in bytes, of the state of the hash function. */
|
||
|
|
unsigned ctx_size;
|
||
|
|
};
|
||
|
|
|
||
|
|
/* evp_md_pctx_ops contains function pointers to allow the |pctx| member of
|
||
|
|
* |EVP_MD_CTX| to be manipulated without breaking layering by calling EVP
|
||
|
|
* functions. */
|
||
|
|
struct evp_md_pctx_ops {
|
||
|
|
/* free is called when an |EVP_MD_CTX| is being freed and the |pctx| also
|
||
|
|
* needs to be freed. */
|
||
|
|
void (*free) (EVP_PKEY_CTX *pctx);
|
||
|
|
|
||
|
|
/* dup is called when an |EVP_MD_CTX| is copied and so the |pctx| also needs
|
||
|
|
* to be copied. */
|
||
|
|
EVP_PKEY_CTX* (*dup) (EVP_PKEY_CTX *pctx);
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
#if defined(__cplusplus)
|
||
|
|
} /* extern C */
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* OPENSSL_HEADER_DIGEST_INTERNAL */
|