pkgtools/digest/files/sha2.h

   1 /*
   2  * sha2.h
   3  *
   4  * Version 1.0.0beta1
   5  *
   6  * Written by Aaron D. Gifford <me@aarongifford.com>
   7  *
   8  * Copyright 2000 Aaron D. Gifford.  All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  * 3. Neither the name of the copyright holder nor the names of contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) AND CONTRIBUTOR(S) ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR(S) OR CONTRIBUTOR(S) BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  */
  35
  36 #ifndef __SHA2_H__
  37 #define __SHA2_H__
  38
  39 #ifdef HAVE_INTTYPES_H
  40 #include <inttypes.h>
  41 #endif
  42
  43 #ifdef HAVE_STDINT_H
  44 #include <stdint.h>
  45 #endif
  46
  47 #ifdef HAVE_UNISTD_H
  48 #include <unistd.h>
  49 #endif
  50
  51 #ifdef __cplusplus
  52 extern "C" {
  53 #endif
  54
  55 typedef uint8_t  sha2_byte;    /* Exactly 1 byte */
  56 typedef uint32_t sha2_word32;  /* Exactly 4 bytes */
  57 typedef uint64_t sha2_word64;  /* Exactly 8 bytes */
  58
  59 /*** SHA-256/384/512 Various Length Definitions ***********************/
  60 #define SHA256_BLOCK_LENGTH             64
  61 #define SHA256_DIGEST_LENGTH            32
  62 #define SHA256_DIGEST_STRING_LENGTH     (SHA256_DIGEST_LENGTH * 2 + 1)
  63 #define SHA384_BLOCK_LENGTH             128
  64 #define SHA384_DIGEST_LENGTH            48
  65 #define SHA384_DIGEST_STRING_LENGTH     (SHA384_DIGEST_LENGTH * 2 + 1)
  66 #define SHA512_BLOCK_LENGTH             128
  67 #define SHA512_DIGEST_LENGTH            64
  68 #define SHA512_DIGEST_STRING_LENGTH     (SHA512_DIGEST_LENGTH * 2 + 1)
  69
  70
  71 /*** SHA-256/384/512 Context Structures *******************************/
  72 typedef struct _SHA256_CTX {
  73         uint32_t        state[8];
  74         uint64_t        bitcount;
  75         uint8_t buffer[SHA256_BLOCK_LENGTH];
  76 } SHA256_CTX;
  77 typedef struct _SHA512_CTX {
  78         uint64_t        state[8];
  79         uint64_t        bitcount[2];
  80         uint8_t buffer[SHA512_BLOCK_LENGTH];
  81 } SHA512_CTX;
  82
  83 typedef SHA512_CTX SHA384_CTX;
  84
  85
  86 void SHA256_Init(SHA256_CTX *);
  87 void SHA256_Update(SHA256_CTX*, const uint8_t*, size_t);
  88 void SHA256_Final(uint8_t[SHA256_DIGEST_LENGTH], SHA256_CTX*);
  89 char* SHA256_End(SHA256_CTX*, char[SHA256_DIGEST_STRING_LENGTH]);
  90 char* SHA256_Data(const uint8_t*, size_t, char[SHA256_DIGEST_STRING_LENGTH]);
  91 char *SHA256_File(char *, char *);
  92
  93 void SHA384_Init(SHA384_CTX*);
  94 void SHA384_Update(SHA384_CTX*, const uint8_t*, size_t);
  95 void SHA384_Final(uint8_t[SHA384_DIGEST_LENGTH], SHA384_CTX*);
  96 char* SHA384_End(SHA384_CTX*, char[SHA384_DIGEST_STRING_LENGTH]);
  97 char* SHA384_Data(const uint8_t*, size_t, char[SHA384_DIGEST_STRING_LENGTH]);
  98 char *SHA384_File(char *, char *);
  99
 100 void SHA512_Init(SHA512_CTX*);
 101 void SHA512_Update(SHA512_CTX*, const uint8_t*, size_t);
 102 void SHA512_Final(uint8_t[SHA512_DIGEST_LENGTH], SHA512_CTX*);
 103 char* SHA512_End(SHA512_CTX*, char[SHA512_DIGEST_STRING_LENGTH]);
 104 char* SHA512_Data(const uint8_t*, size_t, char[SHA512_DIGEST_STRING_LENGTH]);
 105 char *SHA512_File(char *, char *);
 106
 107 #ifdef  __cplusplus
 108 }
 109 #endif /* __cplusplus */
 110
 111 #endif /* __SHA2_H__ */
 112