| Index: libsrtp/crypto/include/sha1.h
|
| ===================================================================
|
| --- libsrtp/crypto/include/sha1.h (revision 0)
|
| +++ libsrtp/crypto/include/sha1.h (revision 0)
|
| @@ -0,0 +1,108 @@
|
| +/*
|
| + * 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) 2001-2006, 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 */
|
|
|
| Property changes on: libsrtp/crypto/include/sha1.h
|
| ___________________________________________________________________
|
| Added: svn:eol-style
|
| + LF
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|