/*
* hmac . h
*
* interface to hmac srtp_auth_type_t
*
* David A . McGrew
* Cisco Systems , Inc .
*
*/
/*
*
* Copyright ( c ) 2001 - 2017 , 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 HMAC_H
#define HMAC_H
#include "auth.h"
#include "sha1.h"
typedef struct {
uint8_t opad[64 ];
srtp_sha1_ctx_t ctx;
srtp_sha1_ctx_t init_ctx;
} srtp_hmac_ctx_t;
#endif /* HMAC_H */
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(vorverarbeitet am 2026-08-25)
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