include/openssl/sha.h

   1 /*
   2  * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #ifndef OPENSSL_SHA_H
  11 # define OPENSSL_SHA_H
  12 # pragma once
  13
  14 # include <openssl/macros.h>
  15 # ifndef OPENSSL_NO_DEPRECATED_3_0
  16 #  define HEADER_SHA_H
  17 # endif
  18
  19 # include <openssl/e_os2.h>
  20 # include <stddef.h>
  21
  22 # ifdef  __cplusplus
  23 extern "C" {
  24 # endif
  25
  26 /*-
  27  * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  28  * ! SHA_LONG has to be at least 32 bits wide.                    !
  29  * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  30  */
  31 # define SHA_LONG unsigned int
  32
  33 # define SHA_LBLOCK      16
  34 # define SHA_CBLOCK      (SHA_LBLOCK*4)/* SHA treats input data as a
  35                                         * contiguous array of 32 bit wide
  36                                         * big-endian values. */
  37 # define SHA_LAST_BLOCK  (SHA_CBLOCK-8)
  38 # define SHA_DIGEST_LENGTH 20
  39
  40 typedef struct SHAstate_st {
  41     SHA_LONG h0, h1, h2, h3, h4;
  42     SHA_LONG Nl, Nh;
  43     SHA_LONG data[SHA_LBLOCK];
  44     unsigned int num;
  45 } SHA_CTX;
  46
  47 int SHA1_Init(SHA_CTX *c);
  48 int SHA1_Update(SHA_CTX *c, const void *data, size_t len);
  49 int SHA1_Final(unsigned char *md, SHA_CTX *c);
  50 unsigned char *SHA1(const unsigned char *d, size_t n, unsigned char *md);
  51 void SHA1_Transform(SHA_CTX *c, const unsigned char *data);
  52
  53 # define SHA256_CBLOCK   (SHA_LBLOCK*4)/* SHA-256 treats input data as a
  54                                         * contiguous array of 32 bit wide
  55                                         * big-endian values. */
  56
  57 typedef struct SHA256state_st {
  58     SHA_LONG h[8];
  59     SHA_LONG Nl, Nh;
  60     SHA_LONG data[SHA_LBLOCK];
  61     unsigned int num, md_len;
  62 } SHA256_CTX;
  63
  64 int SHA224_Init(SHA256_CTX *c);
  65 int SHA224_Update(SHA256_CTX *c, const void *data, size_t len);
  66 int SHA224_Final(unsigned char *md, SHA256_CTX *c);
  67 unsigned char *SHA224(const unsigned char *d, size_t n, unsigned char *md);
  68 int SHA256_Init(SHA256_CTX *c);
  69 int SHA256_Update(SHA256_CTX *c, const void *data, size_t len);
  70 int SHA256_Final(unsigned char *md, SHA256_CTX *c);
  71 unsigned char *SHA256(const unsigned char *d, size_t n, unsigned char *md);
  72 void SHA256_Transform(SHA256_CTX *c, const unsigned char *data);
  73
  74 # define SHA224_DIGEST_LENGTH    28
  75 # define SHA256_DIGEST_LENGTH    32
  76 # define SHA384_DIGEST_LENGTH    48
  77 # define SHA512_DIGEST_LENGTH    64
  78
  79 /*
  80  * Unlike 32-bit digest algorithms, SHA-512 *relies* on SHA_LONG64
  81  * being exactly 64-bit wide. See Implementation Notes in sha512.c
  82  * for further details.
  83  */
  84 /*
  85  * SHA-512 treats input data as a
  86  * contiguous array of 64 bit
  87  * wide big-endian values.
  88  */
  89 # define SHA512_CBLOCK   (SHA_LBLOCK*8)
  90 # if (defined(_WIN32) || defined(_WIN64)) && !defined(__MINGW32__)
  91 #  define SHA_LONG64 unsigned __int64
  92 # elif defined(__arch64__)
  93 #  define SHA_LONG64 unsigned long
  94 # else
  95 #  define SHA_LONG64 unsigned long long
  96 # endif
  97
  98 typedef struct SHA512state_st {
  99     SHA_LONG64 h[8];
 100     SHA_LONG64 Nl, Nh;
 101     union {
 102         SHA_LONG64 d[SHA_LBLOCK];
 103         unsigned char p[SHA512_CBLOCK];
 104     } u;
 105     unsigned int num, md_len;
 106 } SHA512_CTX;
 107
 108 int SHA384_Init(SHA512_CTX *c);
 109 int SHA384_Update(SHA512_CTX *c, const void *data, size_t len);
 110 int SHA384_Final(unsigned char *md, SHA512_CTX *c);
 111 unsigned char *SHA384(const unsigned char *d, size_t n, unsigned char *md);
 112 int SHA512_Init(SHA512_CTX *c);
 113 int SHA512_Update(SHA512_CTX *c, const void *data, size_t len);
 114 int SHA512_Final(unsigned char *md, SHA512_CTX *c);
 115 unsigned char *SHA512(const unsigned char *d, size_t n, unsigned char *md);
 116 void SHA512_Transform(SHA512_CTX *c, const unsigned char *data);
 117
 118 # ifdef  __cplusplus
 119 }
 120 # endif
 121
 122 #endif