forked from Mirrors/freeswitch
b3d890ef25
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@1086 d0543943-73ff-0310-b7d9-9358b9ac24b2
79 lines
2.3 KiB
C
79 lines
2.3 KiB
C
/*
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* hmac.h
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*
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* interface to hmac auth_type_t
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*
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* David A. McGrew
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* Cisco Systems, Inc.
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*
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*/
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/*
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*
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* Copyright (c) 2001-2005, Cisco Systems, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* Neither the name of the Cisco Systems, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef HMAC_H
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#define HMAC_H
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#include "auth.h"
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#include "sha1.h"
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typedef struct {
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uint8_t opad[64];
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sha1_ctx_t ctx;
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sha1_ctx_t init_ctx;
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} hmac_ctx_t;
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err_status_t
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hmac_alloc(auth_t **a, int key_len, int out_len);
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err_status_t
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hmac_dealloc(auth_t *a);
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err_status_t
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hmac_init(hmac_ctx_t *state, const uint8_t *key, int key_len);
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err_status_t
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hmac_start(hmac_ctx_t *state);
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err_status_t
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hmac_update(hmac_ctx_t *state, const uint8_t *message, int msg_octets);
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err_status_t
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hmac_compute(hmac_ctx_t *state, const void *message,
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int msg_octets, int tag_len, uint8_t *result);
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#endif /* HMAC_H */
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