Botan
1.11.15
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00001 /* 00002 * RC2 00003 * (C) 1999-2007 Jack Lloyd 00004 * 00005 * Botan is released under the Simplified BSD License (see license.txt) 00006 */ 00007 00008 #ifndef BOTAN_RC2_H__ 00009 #define BOTAN_RC2_H__ 00010 00011 #include <botan/block_cipher.h> 00012 00013 namespace Botan { 00014 00015 /** 00016 * RC2 00017 */ 00018 class BOTAN_DLL RC2 : public Block_Cipher_Fixed_Params<8, 1, 32> 00019 { 00020 public: 00021 void encrypt_n(const byte in[], byte out[], size_t blocks) const; 00022 void decrypt_n(const byte in[], byte out[], size_t blocks) const; 00023 00024 /** 00025 * Return the code of the effective key bits 00026 * @param bits key length 00027 * @return EKB code 00028 */ 00029 static byte EKB_code(size_t bits); 00030 00031 void clear(); 00032 std::string name() const { return "RC2"; } 00033 BlockCipher* clone() const { return new RC2; } 00034 private: 00035 void key_schedule(const byte[], size_t); 00036 00037 secure_vector<u16bit> K; 00038 }; 00039 00040 } 00041 00042 #endif