root/shared/hash.h

/* */

INCLUDED FROM

   1 /*
   2 ** Copyright (c) 2024 Amelia Campbell
   3 **
   4 ** Redistribution and use in source and binary forms, with or without
   5 ** modification, are permitted provided that the following conditions are
   6 ** met: 
   7 **
   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
  13 **     distribution.
  14 **  3. Neither the name of the copyright holder nor the names of its
  15 **     contributors may be used to endorse or promote products derived
  16 **     from this software without specific prior written permission.
  17 **
  18 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  19 ** IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  20 ** TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  21 ** PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  22 ** HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  23 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  24 ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28 ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29 */
  30 
  31 #ifndef DHASH_H
  32 #define DHASH_H
  33 #include <stdio.h>
  34 #include <openssl/evp.h>
  35 #define HASH_ASZ 32 /* sha256 */
  36 #define HASH_TSZ EVP_MAX_MD_SIZE
  37 #define SALT_SZ HASH_ASZ
  38 typedef struct { unsigned char r[HASH_TSZ]; } hash_t;
  39 typedef struct { unsigned char r[SALT_SZ ]; } salt_t;
  40 #ifdef USE_AGENT
  41 extern unsigned char **key_override;
  42 #endif
  43 void sha256(unsigned char *, size_t, hash_t *);
  44 void genkey(unsigned char *, size_t, hash_t *);
  45 void genchk(unsigned char *, size_t,
  46             salt_t *, hash_t *, int);
  47 int hashcmp(hash_t *, hash_t *);
  48 void hashfd(FILE *in, hash_t *md);
  49 #endif

/* */