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 * To compute the message digest of a chunk of bytes, declare an 12 * MD5Context structure, pass it to MD5Init, call MD5Update as 13 * needed on buffers full of bytes, and then call MD5Final, which 14 * will fill a supplied 16-byte array with the digest. 15 * 16 */ 17 18 #ifndef TALK_BASE_MD5_H__ 19 #define TALK_BASE_MD5_H__ 20 21 #ifdef __cplusplus 22 extern "C" { 23 #endif 24 25 typedef long unsigned int uint32; 26 typedef struct MD5Context MD5_CTX; 27 28 #define md5byte unsigned char 29 30 struct MD5Context { 31 uint32 buf[4]; 32 uint32 bits[2]; 33 uint32 in[16]; 34 }; 35 36 void MD5Init(struct MD5Context *context); 37 void MD5Update(struct MD5Context *context, md5byte const *buf, unsigned len); 38 void MD5Final(unsigned char digest[16], struct MD5Context *context); 39 void MD5Transform(uint32 buf[4], uint32 const in[16]); 40 41 #ifdef __cplusplus 42 }; 43 #endif 44 45 #endif // TALK_BASE_MD5_H__ 46