forked from Mirrors/freeswitch
b3d890ef25
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@1086 d0543943-73ff-0310-b7d9-9358b9ac24b2
109 lines
3.3 KiB
C
109 lines
3.3 KiB
C
/*
|
|
* sha1.h
|
|
*
|
|
* interface to the Secure Hash Algorithm v.1 (SHA-1), specified in
|
|
* FIPS 180-1
|
|
*
|
|
* David A. McGrew
|
|
* Cisco Systems, Inc.
|
|
*/
|
|
|
|
/*
|
|
*
|
|
* Copyright (c) 2001-2005, Cisco Systems, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 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.
|
|
*
|
|
* Neither the name of the Cisco Systems, Inc. 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 COPYRIGHT HOLDERS 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
|
|
* COPYRIGHT HOLDERS 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.
|
|
*
|
|
*/
|
|
|
|
#ifndef SHA1_H
|
|
#define SHA1_H
|
|
|
|
#include "err.h"
|
|
#include "datatypes.h"
|
|
|
|
typedef struct {
|
|
uint32_t H[5]; /* state vector */
|
|
uint32_t M[16]; /* message buffer */
|
|
int octets_in_buffer; /* octets of message in buffer */
|
|
uint32_t num_bits_in_msg; /* total number of bits in message */
|
|
} sha1_ctx_t;
|
|
|
|
/*
|
|
* sha1(&ctx, msg, len, output) hashes the len octets starting at msg
|
|
* into the SHA1 context, then writes the result to the 20 octets at
|
|
* output
|
|
*
|
|
*/
|
|
|
|
void
|
|
sha1(const uint8_t *message, int octets_in_msg, uint32_t output[5]);
|
|
|
|
/*
|
|
* sha1_init(&ctx) initializes the SHA1 context ctx
|
|
*
|
|
* sha1_update(&ctx, msg, len) hashes the len octets starting at msg
|
|
* into the SHA1 context
|
|
*
|
|
* sha1_final(&ctx, output) performs the final processing of the SHA1
|
|
* context and writes the result to the 20 octets at output
|
|
*
|
|
*/
|
|
|
|
void
|
|
sha1_init(sha1_ctx_t *ctx);
|
|
|
|
void
|
|
sha1_update(sha1_ctx_t *ctx, const uint8_t *M, int octets_in_msg);
|
|
|
|
void
|
|
sha1_final(sha1_ctx_t *ctx, uint32_t output[5]);
|
|
|
|
/*
|
|
* The sha1_core function is INTERNAL to SHA-1, but it is declared
|
|
* here because it is also used by the cipher SEAL 3.0 in its key
|
|
* setup algorithm.
|
|
*/
|
|
|
|
/*
|
|
* sha1_core(M, H) computes the core sha1 compression function, where M is
|
|
* the next part of the message and H is the intermediate state {H0,
|
|
* H1, ...}
|
|
*
|
|
* this function does not do any of the padding required in the
|
|
* complete sha1 function
|
|
*/
|
|
|
|
void
|
|
sha1_core(const uint32_t M[16], uint32_t hash_value[5]);
|
|
|
|
#endif /* SHA1_H */
|