hash.h

   1 /*
   2   chronyd/chronyc - Programs for keeping computer clocks accurate.
   3
   4  **********************************************************************
   5  * Copyright (C) Miroslav Lichvar  2012
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of version 2 of the GNU General Public License as
   9  * published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  19  *
  20  **********************************************************************
  21
  22   =======================================================================
  23
  24   Header file for crypto hashing.
  25
  26   */
  27
  28 #ifndef GOT_HASH_H
  29 #define GOT_HASH_H
  30
  31 /* length of hash values produced by SHA512 */
  32 #define MAX_HASH_LENGTH 64
  33
  34 typedef enum {
  35   HSH_INVALID = 0,
  36   HSH_MD5 = 1,
  37   HSH_SHA1 = 2,
  38   HSH_SHA256 = 3,
  39   HSH_SHA384 = 4,
  40   HSH_SHA512 = 5,
  41   HSH_SHA3_224 = 6,
  42   HSH_SHA3_256 = 7,
  43   HSH_SHA3_384 = 8,
  44   HSH_SHA3_512 = 9,
  45   HSH_TIGER = 10,
  46   HSH_WHIRLPOOL = 11,
  47 } HSH_Algorithm;
  48
  49 extern int HSH_GetHashId(HSH_Algorithm algorithm);
  50
  51 extern unsigned int HSH_Hash(int id,
  52     const unsigned char *in1, unsigned int in1_len,
  53     const unsigned char *in2, unsigned int in2_len,
  54     unsigned char *out, unsigned int out_len);
  55
  56 extern void HSH_Finalise(void);
  57
  58 #endif