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 // Changes(fbarchard): Ported to C++ and Google style guide. 19 // Made context first parameter in MD5Final for consistency with Sha1. 20 21 #ifndef TALK_BASE_MD5_H_ 22 #define TALK_BASE_MD5_H_ 23 24 #include "talk/base/basictypes.h" 25 26 // Canonical name for a MD5 context structure, used in many crypto libs. 27 typedef struct MD5Context MD5_CTX; 28 29 struct MD5Context { 30 uint32 buf[4]; 31 uint32 bits[2]; 32 uint32 in[16]; 33 }; 34 35 void MD5Init(MD5Context* context); 36 void MD5Update(MD5Context* context, const uint8* data, size_t len); 37 void MD5Final(MD5Context* context, uint8 digest[16]); 38 void MD5Transform(uint32 buf[4], const uint32 in[16]); 39 40 #endif // TALK_BASE_MD5_H_ 41
