SHA1.h

/*
 * Copyright (c) 2019 Arduino SA. All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining 
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be 
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#ifndef SHA1_H
#define SHA1_H

#include <bearssl/bearssl_hash.h>

#include "SHA.h"

#define SHA1_BLOCK_SIZE 64
#define SHA1_DIGEST_SIZE 20

class SHA1Class: public SHAClass {

public:
  SHA1Class();
  virtual ~SHA1Class();

protected:
  virtual int begin();
  virtual int update(const uint8_t *buffer, size_t size);
  virtual int end(uint8_t *digest);

private:
  br_sha1_context _ctx;
};

extern SHA1Class BearSHA1;

#endif