kc3-lang/libmd/include/sha2.h

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• Hash : 4c5931f5
  Author :
  Date : 2023-04-06T20:37:41
  

  Sync SHA2 changes from OpenBSD This adds support for SHA224 and SHA512-256.

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• include/sha2.h

• /*	$OpenBSD: sha2.h,v 1.10 2016/09/03 17:00:29 tedu Exp $	*/
  
  /*
   * FILE:	sha2.h
   * AUTHOR:	Aaron D. Gifford <me@aarongifford.com>
   * 
   * Copyright (c) 2000-2001, Aaron D. Gifford
   * 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. Neither the name of the copyright holder nor the names of contributors
   *    may be used to endorse or promote products derived from this software
   *    without specific prior written permission.
   * 
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTOR(S) ``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 OR CONTRIBUTOR(S) 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.
   *
   * $From: sha2.h,v 1.1 2001/11/08 00:02:01 adg Exp adg $
   */
  
  #ifndef _SHA2_H
  #define _SHA2_H
  
  #include <sys/types.h>
  
  #include <stdint.h>
  
  /*** SHA-224/256/384/512 Various Length Definitions ***********************/
  #define SHA224_BLOCK_LENGTH		64
  #define SHA224_DIGEST_LENGTH		28
  #define SHA224_DIGEST_STRING_LENGTH	(SHA224_DIGEST_LENGTH * 2 + 1)
  #define SHA256_BLOCK_LENGTH		64
  #define SHA256_DIGEST_LENGTH		32
  #define SHA256_DIGEST_STRING_LENGTH	(SHA256_DIGEST_LENGTH * 2 + 1)
  #define SHA384_BLOCK_LENGTH		128
  #define SHA384_DIGEST_LENGTH		48
  #define SHA384_DIGEST_STRING_LENGTH	(SHA384_DIGEST_LENGTH * 2 + 1)
  #define SHA512_BLOCK_LENGTH		128
  #define SHA512_DIGEST_LENGTH		64
  #define SHA512_DIGEST_STRING_LENGTH	(SHA512_DIGEST_LENGTH * 2 + 1)
  #define SHA512_256_BLOCK_LENGTH		128
  #define SHA512_256_DIGEST_LENGTH	32
  #define SHA512_256_DIGEST_STRING_LENGTH	(SHA512_256_DIGEST_LENGTH * 2 + 1)
  
  
  /*** SHA-224/256/384/512 Context Structure *******************************/
  typedef struct _SHA2_CTX {
  	union {
  		uint32_t	st32[8];
  		uint64_t	st64[8];
  	} state;
  	uint64_t	bitcount[2];
  	uint8_t		buffer[SHA512_BLOCK_LENGTH];
  } SHA2_CTX;
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  void SHA224Init(SHA2_CTX *);
  void SHA224Transform(uint32_t state[8], const uint8_t [SHA224_BLOCK_LENGTH]);
  void SHA224Update(SHA2_CTX *, const uint8_t *, size_t);
  void SHA224Pad(SHA2_CTX *);
  void SHA224Final(uint8_t [SHA224_DIGEST_LENGTH], SHA2_CTX *);
  char *SHA224End(SHA2_CTX *, char *);
  char *SHA224File(const char *, char *);
  char *SHA224FileChunk(const char *, char *, off_t, off_t);
  char *SHA224Data(const uint8_t *, size_t, char *);
  
  void SHA256Init(SHA2_CTX *);
  void SHA256Transform(uint32_t state[8], const uint8_t [SHA256_BLOCK_LENGTH]);
  void SHA256Update(SHA2_CTX *, const uint8_t *, size_t);
  void SHA256Pad(SHA2_CTX *);
  void SHA256Final(uint8_t [SHA256_DIGEST_LENGTH], SHA2_CTX *);
  char *SHA256End(SHA2_CTX *, char *);
  char *SHA256File(const char *, char *);
  char *SHA256FileChunk(const char *, char *, off_t, off_t);
  char *SHA256Data(const uint8_t *, size_t, char *);
  
  void SHA384Init(SHA2_CTX *);
  void SHA384Transform(uint64_t state[8], const uint8_t [SHA384_BLOCK_LENGTH]);
  void SHA384Update(SHA2_CTX *, const uint8_t *, size_t);
  void SHA384Pad(SHA2_CTX *);
  void SHA384Final(uint8_t [SHA384_DIGEST_LENGTH], SHA2_CTX *);
  char *SHA384End(SHA2_CTX *, char *);
  char *SHA384File(const char *, char *);
  char *SHA384FileChunk(const char *, char *, off_t, off_t);
  char *SHA384Data(const uint8_t *, size_t, char *);
  
  void SHA512Init(SHA2_CTX *);
  void SHA512Transform(uint64_t state[8], const uint8_t [SHA512_BLOCK_LENGTH]);
  void SHA512Update(SHA2_CTX *, const uint8_t *, size_t);
  void SHA512Pad(SHA2_CTX *);
  void SHA512Final(uint8_t [SHA512_DIGEST_LENGTH], SHA2_CTX *);
  char *SHA512End(SHA2_CTX *, char *);
  char *SHA512File(const char *, char *);
  char *SHA512FileChunk(const char *, char *, off_t, off_t);
  char *SHA512Data(const uint8_t *, size_t, char *);
  
  void SHA512_256Init(SHA2_CTX *);
  void SHA512_256Transform(uint64_t state[8], const uint8_t [SHA512_256_BLOCK_LENGTH]);
  void SHA512_256Update(SHA2_CTX *, const uint8_t *, size_t);
  void SHA512_256Pad(SHA2_CTX *);
  void SHA512_256Final(uint8_t [SHA512_256_DIGEST_LENGTH], SHA2_CTX *);
  char *SHA512_256End(SHA2_CTX *, char *);
  char *SHA512_256File(const char *, char *);
  char *SHA512_256FileChunk(const char *, char *, off_t, off_t);
  char *SHA512_256Data(const uint8_t *, size_t, char *);
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* _SHA2_H */
  

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