1 /* 2 * This code is derived from (original license follows): 3 * 4 * This is an OpenSSL-compatible implementation of the RSA Data Security, Inc. 5 * MD5 Message-Digest Algorithm (RFC 1321). 6 * 7 * Homepage: 8 * http://openwall.info/wiki/people/solar/software/public-domain-source-code/md5 9 * 10 * Author: 11 * Alexander Peslyak, better known as Solar Designer <solar at openwall.com> 12 * 13 * This software was written by Alexander Peslyak in 2001. No copyright is 14 * claimed, and the software is hereby placed in the public domain. 15 * In case this attempt to disclaim copyright and place the software in the 16 * public domain is deemed null and void, then the software is 17 * Copyright (c) 2001 Alexander Peslyak and it is hereby released to the 18 * general public under the following terms: 19 * 20 * Redistribution and use in source and binary forms, with or without 21 * modification, are permitted. 22 * 23 * There's ABSOLUTELY NO WARRANTY, express or implied. 24 * 25 * See md5.c for more information. 26 */ 27 28 #ifndef LLVM_SYSTEM_MD5_H 29 #define LLVM_SYSTEM_MD5_H 30 31 #include "llvm/ADT/SmallString.h" 32 #include "llvm/Support/DataTypes.h" 33 34 namespace llvm { 35 36 template <typename T> class ArrayRef; 37 38 class MD5 { 39 // Any 32-bit or wider unsigned integer data type will do. 40 typedef uint32_t MD5_u32plus; 41 42 MD5_u32plus a, b, c, d; 43 MD5_u32plus hi, lo; 44 uint8_t buffer[64]; 45 MD5_u32plus block[16]; 46 47 public: 48 typedef uint8_t MD5Result[16]; 49 50 MD5(); 51 52 /// \brief Updates the hash for the byte stream provided. 53 void update(ArrayRef<uint8_t> Data); 54 55 /// \brief Updates the hash for the StringRef provided. 56 void update(StringRef Str); 57 58 /// \brief Finishes off the hash and puts the result in result. 59 void final(MD5Result &result); 60 61 /// \brief Translates the bytes in \p Res to a hex string that is 62 /// deposited into \p Str. The result will be of length 32. 63 static void stringifyResult(MD5Result &Res, SmallString<32> &Str); 64 65 private: 66 const uint8_t *body(ArrayRef<uint8_t> Data); 67 }; 68 69 } 70 71 #endif 72
