dlls/rsaenh/sha2.h

   1 /*
   2  * FILE:        sha2.h
   3  * AUTHOR:      Aaron D. Gifford - http://www.aarongifford.com/
   4  *
   5  * Copyright (c) 2000-2001, Aaron D. Gifford
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. Neither the name of the copyright holder nor the names of contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTOR(S) ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTOR(S) BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  */
  32
  33 #ifndef __SHA2_H__
  34 #define __SHA2_H__
  35
  36 #include <basetsd.h>
  37
  38 /*** SHA-256/384/512 Various Length Definitions ***********************/
  39 #define SHA256_BLOCK_LENGTH             64
  40 #define SHA256_DIGEST_LENGTH            32
  41 #define SHA256_DIGEST_STRING_LENGTH     (SHA256_DIGEST_LENGTH * 2 + 1)
  42 #define SHA384_BLOCK_LENGTH             128
  43 #define SHA384_DIGEST_LENGTH            48
  44 #define SHA384_DIGEST_STRING_LENGTH     (SHA384_DIGEST_LENGTH * 2 + 1)
  45 #define SHA512_BLOCK_LENGTH             128
  46 #define SHA512_DIGEST_LENGTH            64
  47 #define SHA512_DIGEST_STRING_LENGTH     (SHA512_DIGEST_LENGTH * 2 + 1)
  48
  49
  50 /*** SHA-256/384/512 Context Structures *******************************/
  51 typedef UINT8  sha2_byte;       /* Exactly 1 byte */
  52 typedef UINT32 sha2_word32;     /* Exactly 4 bytes */
  53 typedef UINT64 sha2_word64;     /* Exactly 8 bytes */
  54
  55 typedef struct _SHA256_CTX {
  56         sha2_word32     state[8];
  57         sha2_word64     bitcount;
  58         sha2_byte       buffer[SHA256_BLOCK_LENGTH];
  59 } SHA256_CTX;
  60 typedef struct _SHA512_CTX {
  61         sha2_word64     state[8];
  62         sha2_word64     bitcount[2];
  63         sha2_byte       buffer[SHA512_BLOCK_LENGTH];
  64 } SHA512_CTX;
  65
  66 typedef SHA512_CTX SHA384_CTX;
  67
  68
  69 /*** SHA-256/384/512 Function Prototypes ******************************/
  70
  71 void SHA256_Init(SHA256_CTX *);
  72 void SHA256_Update(SHA256_CTX*, const sha2_byte*, size_t);
  73 void SHA256_Final(sha2_byte[SHA256_DIGEST_LENGTH], SHA256_CTX*);
  74 char* SHA256_End(SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]);
  75 char* SHA256_Data(const sha2_byte*, size_t, char[SHA256_DIGEST_STRING_LENGTH]);
  76
  77 void SHA384_Init(SHA384_CTX*);
  78 void SHA384_Update(SHA384_CTX*, const sha2_byte*, size_t);
  79 void SHA384_Final(sha2_byte[SHA384_DIGEST_LENGTH], SHA384_CTX*);
  80 char* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]);
  81 char* SHA384_Data(const sha2_byte*, size_t, char[SHA384_DIGEST_STRING_LENGTH]);
  82
  83 void SHA512_Init(SHA512_CTX*);
  84 void SHA512_Update(SHA512_CTX*, const sha2_byte*, size_t);
  85 void SHA512_Final(sha2_byte[SHA512_DIGEST_LENGTH], SHA512_CTX*);
  86 char* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]);
  87 char* SHA512_Data(const sha2_byte*, size_t, char[SHA512_DIGEST_STRING_LENGTH]);
  88
  89 #endif /* __SHA2_H__ */