00001 // -*- c++ -*- 00002 // 00003 // $Id: key.h 2283 2009-04-10 19:25:16Z rafi $ 00004 // 00005 // YAPET -- Yet Another Password Encryption Tool 00006 // Copyright (C) 2008 Rafael Ostertag 00007 // 00008 // This program is free software: you can redistribute it and/or modify 00009 // it under the terms of the GNU General Public License as published by 00010 // the Free Software Foundation, either version 3 of the License, or 00011 // (at your option) any later version. 00012 // 00013 // This program is distributed in the hope that it will be useful, 00014 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00015 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00016 // GNU General Public License for more details. 00017 // 00018 // You should have received a copy of the GNU General Public License 00019 // along with this program. If not, see <http://www.gnu.org/licenses/>. 00020 // 00021 00022 #ifndef _KEY_H 00023 #define _KEY_H 00024 00025 #ifdef HAVE_CONFIG_H 00026 # include <config.h> 00027 #endif 00028 00029 #ifdef HAVE_INTTYPES_H 00030 # include <inttypes.h> 00031 #endif 00032 00033 #include <openssl/evp.h> 00034 00035 #include "yapetexception.h" 00036 00043 namespace YAPET { 00063 class Key { 00064 private: 00065 enum { 00069 KEYLENGTH = 56, 00073 MD5_LEN = 16, 00074 00078 SHA1_LEN = 20, 00082 RIPEMD160_LEN = 20, 00086 IVECLENGTH = 8 00087 }; 00088 00094 uint8_t key[KEYLENGTH]; 00101 uint8_t IVec[IVECLENGTH]; 00102 00104 void cleanup(); 00105 00106 public: 00108 Key(const char* password) throw(YAPETException); 00109 Key(const Key& k); 00110 ~Key(); 00111 00125 inline const uint8_t* getKey(int& key_len) const { 00126 key_len = KEYLENGTH; 00127 return key; 00128 } 00129 00140 inline const uint8_t* getKey() const { return key; } 00141 00156 inline const uint8_t* getIVec(int& ivec_len) const { 00157 ivec_len = IVECLENGTH; 00158 return IVec; 00159 } 00160 00172 inline const uint8_t* getIVec() const { return IVec; } 00173 00181 inline uint32_t size() const { return KEYLENGTH; } 00182 00191 inline uint32_t ivec_size() const { return IVECLENGTH; } 00192 00206 inline const uint8_t* operator()(int& key_len) const { return getKey(key_len); } 00207 00218 inline const uint8_t* operator()() const { return key; } 00219 00225 inline operator uint8_t*() { return key; } 00226 00232 inline operator const uint8_t*() const { return key; } 00233 00234 const Key& operator=(const Key& k); 00236 bool operator==(const Key& k) const; 00238 bool operator!=(const Key& k) const { return !operator==(k); } 00239 }; 00240 00241 } 00242 00243 #endif // _KEY_H