Botan
1.11.15
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00001 /* 00002 * SEED 00003 * (C) 1999-2007 Jack Lloyd 00004 * 00005 * Botan is released under the Simplified BSD License (see license.txt) 00006 */ 00007 00008 #ifndef BOTAN_SEED_H__ 00009 #define BOTAN_SEED_H__ 00010 00011 #include <botan/block_cipher.h> 00012 00013 namespace Botan { 00014 00015 /** 00016 * SEED, a Korean block cipher 00017 */ 00018 class BOTAN_DLL SEED : public Block_Cipher_Fixed_Params<16, 16> 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 void clear(); 00025 std::string name() const { return "SEED"; } 00026 BlockCipher* clone() const { return new SEED; } 00027 private: 00028 void key_schedule(const byte[], size_t); 00029 00030 class G_FUNC 00031 { 00032 public: 00033 u32bit operator()(u32bit) const; 00034 private: 00035 static const u32bit S0[256], S1[256], S2[256], S3[256]; 00036 }; 00037 00038 secure_vector<u32bit> K; 00039 }; 00040 00041 } 00042 00043 #endif