#ifndef __CRYPTOHASH_H
  #define __CRYPTOHASH_H
  
  #define SHA_DIGEST_WORDS 5
  #define SHA_MESSAGE_BYTES (512 /*bits*/ / 8)
  #define SHA_WORKSPACE_WORDS 16
  
  void sha_init(__u32 *buf);
  void sha_transform(__u32 *digest, const char *data, __u32 *W);
  
  #define MD5_DIGEST_WORDS 4
  #define MD5_MESSAGE_BYTES 64
  
  void md5_transform(__u32 *hash, __u32 const *in);
  
  __u32 half_md4_transform(__u32 buf[4], __u32 const in[8]);
  
  #endif