src/util/hash/sha.h

   1 /*
   2  * Copyright (C) the libgit2 contributors. All rights reserved.
   3  *
   4  * This file is part of libgit2, distributed under the GNU GPL v2 with
   5  * a Linking Exception. For full terms see the included COPYING file.
   6  */
   7
   8 #ifndef INCLUDE_hash_sha_h__
   9 #define INCLUDE_hash_sha_h__
  10
  11 #include "git2_util.h"
  12
  13 typedef struct git_hash_sha1_ctx git_hash_sha1_ctx;
  14 typedef struct git_hash_sha256_ctx git_hash_sha256_ctx;
  15
  16 #if defined(GIT_SHA1_COMMON_CRYPTO) || defined(GIT_SHA256_COMMON_CRYPTO)
  17 # include "common_crypto.h"
  18 #endif
  19
  20 #if defined(GIT_SHA1_OPENSSL) || defined(GIT_SHA256_OPENSSL)
  21 # include "openssl.h"
  22 #endif
  23
  24 #if defined(GIT_SHA1_WIN32) || defined(GIT_SHA256_WIN32)
  25 # include "win32.h"
  26 #endif
  27
  28 #if defined(GIT_SHA1_MBEDTLS) || defined(GIT_SHA256_MBEDTLS)
  29 # include "mbedtls.h"
  30 #endif
  31
  32 #if defined(GIT_SHA1_COLLISIONDETECT)
  33 # include "collisiondetect.h"
  34 #endif
  35
  36 #if defined(GIT_SHA256_BUILTIN)
  37 # include "builtin.h"
  38 #endif
  39
  40 /*
  41  * SHA1
  42  */
  43
  44 #define GIT_HASH_SHA1_SIZE 20
  45
  46 int git_hash_sha1_global_init(void);
  47
  48 int git_hash_sha1_ctx_init(git_hash_sha1_ctx *ctx);
  49 void git_hash_sha1_ctx_cleanup(git_hash_sha1_ctx *ctx);
  50
  51 int git_hash_sha1_init(git_hash_sha1_ctx *c);
  52 int git_hash_sha1_update(git_hash_sha1_ctx *c, const void *data, size_t len);
  53 int git_hash_sha1_final(unsigned char *out, git_hash_sha1_ctx *c);
  54
  55 /*
  56  * SHA256
  57  */
  58
  59 #define GIT_HASH_SHA256_SIZE 32
  60
  61 int git_hash_sha256_global_init(void);
  62
  63 int git_hash_sha256_ctx_init(git_hash_sha256_ctx *ctx);
  64 void git_hash_sha256_ctx_cleanup(git_hash_sha256_ctx *ctx);
  65
  66 int git_hash_sha256_init(git_hash_sha256_ctx *c);
  67 int git_hash_sha256_update(git_hash_sha256_ctx *c, const void *data, size_t len);
  68 int git_hash_sha256_final(unsigned char *out, git_hash_sha256_ctx *c);
  69
  70 #endif