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 // Changes(hellner): added rtc namespace
21 // Changes(pbos): Reverted types back to uint32(8)_t with _t suffix.
22 
23 #ifndef WEBRTC_BASE_MD5_H_
24 #define WEBRTC_BASE_MD5_H_
25 
26 #include <stdint.h>
27 #include <stdlib.h>
28 
29 namespace rtc {
30 
31 struct MD5Context {
32   uint32_t buf[4];
33   uint32_t bits[2];
34   uint32_t in[16];
35 };
36 
37 void MD5Init(MD5Context* context);
38 void MD5Update(MD5Context* context, const uint8_t* data, size_t len);
39 void MD5Final(MD5Context* context, uint8_t digest[16]);
40 void MD5Transform(uint32_t buf[4], const uint32_t in[16]);
41 
42 }  // namespace rtc
43 
44 #endif  // WEBRTC_BASE_MD5_H_
45