KM_sha1.h

/*
Copyright (c) 2020, John Hurst
All rights reserved.

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 above 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. The name of the author may not be used to endorse or promote products
   derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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,
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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.
*/
  /*! \file    KM_sha1.h
    \version $Id$
    \brief   SHA-1 message digest
  */

#ifndef _KM_SHA1_H_
#define _KM_SHA1_H_

#include <KM_platform.h>

namespace Kumu {
  int const SHA1_DIGEST_LENGTH = 20;

  typedef struct {
    ui32_t state[5];
    ui32_t count[2];
    byte_t buffer[64];
  } SHA1_CTX;

  void SHA1_Init(SHA1_CTX* context);
  void SHA1_Update(SHA1_CTX* context, const byte_t* data, unsigned int len);
  void SHA1_Final(byte_t digest[20], SHA1_CTX* context);
}

#endif // _KM_SHA1_H_

//
// end KM_sha1.h
//