1 /* Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All 2 * rights reserved. 3 * 4 * License to copy and use this software is granted provided that it 5 * is identified as the "RSA Data Security, Inc. MD5 Message-Digest 6 * Algorithm" in all material mentioning or referencing this software 7 * or this function. 8 * 9 * License is also granted to make and use derivative works provided 10 * that such works are identified as "derived from the RSA Data 11 * Security, Inc. MD5 Message-Digest Algorithm" in all material 12 * mentioning or referencing the derived work. 13 * 14 * RSA Data Security, Inc. makes no representations concerning either 15 * the merchantability of this software or the suitability of this 16 * software for any particular purpose. It is provided "as is" 17 * without express or implied warranty of any kind. 18 * 19 * These notices must be retained in any copies of any part of this 20 * documentation and/or software. 21 */ 22 23 #ifndef __libpbd_md5_h__ 24 #define __libpbd_md5_h__ 25 26 #include <string.h> 27 #include <stdint.h> 28 29 #include "pbd/libpbd_visibility.h" 30 31 class LIBPBD_API MD5 32 { 33 public: 34 MD5(); 35 36 // an MD5 digest is a 16-byte number (32 hex digits) 37 uint8_t digestRaw[16] ; 38 39 // This version of the digest is actually 40 // a "printf'd" version of the digest. 41 char digestChars[33] ; 42 43 void writeToString (); 44 char* digestFile (char *filename); 45 char* digestMemory (uint8_t const * memchunk, size_t len); 46 char* digestString (char const *string); 47 48 private: 49 struct context_t { 50 uint32_t state[4]; /* state (ABCD) */ 51 uint32_t count[2]; /* number of bits, modulo 2^64 (lsb first) */ 52 uint8_t buffer[64]; /* input buffer */ 53 }; 54 55 context_t context; 56 57 void Init (); 58 void Transform (uint32_t state[4], uint8_t const * block); 59 void Encode (uint8_t *output, uint32_t const *input, size_t len); 60 void Decode (uint32_t *output, uint8_t const * input, size_t len); 61 void Update (uint8_t const *input, size_t inputLen); 62 void Final (); 63 64 }; 65 66 #endif /* __libpbd_md5_h__ */ 67