sys/crypto/sha2/sha256.h

   1 /*-
   2  * Copyright 2005 Colin Percival
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  */
  26
  27 #ifndef _SHA256_H_
  28 #define _SHA256_H_
  29
  30 #ifndef _KERNEL
  31 #include <sys/types.h>
  32 #endif
  33
  34 #define SHA256_BLOCK_LENGTH             64
  35 #define SHA256_DIGEST_LENGTH            32
  36 #define SHA256_DIGEST_STRING_LENGTH     (SHA256_DIGEST_LENGTH * 2 + 1)
  37
  38 typedef struct SHA256Context {
  39         uint32_t state[8];
  40         uint64_t count;
  41         uint8_t buf[SHA256_BLOCK_LENGTH];
  42 } SHA256_CTX;
  43
  44 __BEGIN_DECLS
  45
  46 /* Ensure libmd symbols do not clash with libcrypto */
  47
  48 #ifndef SHA256_Init
  49 #define SHA256_Init             _libmd_SHA256_Init
  50 #endif
  51 #ifndef SHA256_Update
  52 #define SHA256_Update           _libmd_SHA256_Update
  53 #endif
  54 #ifndef SHA256_Final
  55 #define SHA256_Final            _libmd_SHA256_Final
  56 #endif
  57 #ifndef SHA256_End
  58 #define SHA256_End              _libmd_SHA256_End
  59 #endif
  60 #ifndef SHA256_Fd
  61 #define SHA256_Fd               _libmd_SHA256_Fd
  62 #endif
  63 #ifndef SHA256_FdChunk
  64 #define SHA256_FdChunk          _libmd_SHA256_FdChunk
  65 #endif
  66 #ifndef SHA256_File
  67 #define SHA256_File             _libmd_SHA256_File
  68 #endif
  69 #ifndef SHA256_FileChunk
  70 #define SHA256_FileChunk        _libmd_SHA256_FileChunk
  71 #endif
  72 #ifndef SHA256_Data
  73 #define SHA256_Data             _libmd_SHA256_Data
  74 #endif
  75 #ifndef SHA256_Transform
  76 #define SHA256_Transform                _libmd_SHA256_Transform
  77 #endif
  78
  79 void    SHA256_Init(SHA256_CTX *);
  80 void    SHA256_Update(SHA256_CTX *, const void *, size_t);
  81 void    SHA256_Final(unsigned char [__min_size(SHA256_DIGEST_LENGTH)],
  82     SHA256_CTX *);
  83 #ifndef _KERNEL
  84 char   *SHA256_End(SHA256_CTX *, char *);
  85 char   *SHA256_Data(const void *, unsigned int, char *);
  86 char   *SHA256_Fd(int, char *);
  87 char   *SHA256_FdChunk(int, char *, off_t, off_t);
  88 char   *SHA256_File(const char *, char *);
  89 char   *SHA256_FileChunk(const char *, char *, off_t, off_t);
  90 #endif
  91 __END_DECLS
  92
  93 #endif /* !_SHA256_H_ */