md5.h

   1 /*
   2  * This is an OpenSSL-compatible implementation of the RSA Data Security,
   3  * Inc. MD5 Message-Digest Algorithm.
   4  *
   5  * Written by Solar Designer <solar at openwall.com> in 2001, and placed
   6  * in the public domain.  See md5.c for more information.
   7  */
   8
   9 #ifndef __MD5_H__
  10 #define __MD5_H__
  11
  12 #define MD5_DIGEST_SZ   16
  13 #define MD5_BLOCK_SZ    64
  14
  15 /* Any 32-bit or wider unsigned integer data type will do */
  16 typedef unsigned long MD5_u32plus;
  17
  18 typedef struct {
  19     MD5_u32plus lo, hi;
  20     MD5_u32plus a, b, c, d;
  21     unsigned char buffer[MD5_BLOCK_SZ];
  22     MD5_u32plus block[MD5_DIGEST_SZ];
  23 } MD5_CTX;
  24
  25 extern void MD5_Init(MD5_CTX *ctx);
  26 extern void MD5_Update(MD5_CTX *ctx, void *data, unsigned long size);
  27 extern void MD5_Final(unsigned char *result, MD5_CTX *ctx);
  28
  29 #endif /* __MD5_H__ */