1 /* 2 * This is the header file for the MD5 message-digest algorithm. 3 * The algorithm is due to Ron Rivest. This code was 4 * written by Colin Plumb in 1993, no copyright is claimed. 5 * This code is in the public domain; do with it what you wish. 6 * 7 * Equivalent code is available from RSA Data Security, Inc. 8 * This code has been tested against that, and is equivalent, 9 * except that you don't need to include two pages of legalese 10 * with every copy. 11 * 12 * To compute the message digest of a chunk of bytes, declare an 13 * MD5Context structure, pass it to MD5Init, call MD5Update as 14 * needed on buffers full of bytes, and then call MD5Final, which 15 * will fill a supplied 16-byte array with the digest. 16 * 17 * Changed so as no longer to depend on Colin Plumb's `usual.h' 18 * header definitions; now uses stuff from dpkg's config.h 19 * - Ian Jackson <ijackson@nyx.cs.du.edu>. 20 * Still in the public domain. 21 * 22 * md5_buffer added by Steven Fuller 23 * Still in the public domain. 24 */ 25 26 #ifndef MD5_H 27 #define MD5_H 28 29 #ifdef __cplusplus 30 extern "C" { 31 #endif 32 33 typedef unsigned int UWORD32; 34 35 #define md5byte unsigned char 36 37 struct MD5Context { 38 UWORD32 buf[4]; 39 UWORD32 bytes[2]; 40 UWORD32 in[16]; 41 }; 42 43 void MD5Init(struct MD5Context *context); 44 void MD5Update(struct MD5Context *context, md5byte const *buf, unsigned len); 45 void MD5Final(unsigned char digest[16], struct MD5Context *context); 46 void MD5Transform(UWORD32 buf[4], UWORD32 const in[16]); 47 48 /* md5_buffer frontend added for AvP */ 49 void md5_buffer(char const *buffer, unsigned int len, char *digest); 50 51 #ifdef __cplusplus 52 }; 53 #endif 54 55 #endif /* !MD5_H */ 56