Botan  1.11.15
src/lib/block/noekeon/noekeon.h
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00001 /*
00002 * Noekeon
00003 * (C) 1999-2008 Jack Lloyd
00004 *
00005 * Botan is released under the Simplified BSD License (see license.txt)
00006 */
00007 
00008 #ifndef BOTAN_NOEKEON_H__
00009 #define BOTAN_NOEKEON_H__
00010 
00011 #include <botan/block_cipher.h>
00012 
00013 namespace Botan {
00014 
00015 /**
00016 * Noekeon
00017 */
00018 class BOTAN_DLL Noekeon : 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 "Noekeon"; }
00026       BlockCipher* clone() const { return new Noekeon; }
00027    protected:
00028       /**
00029       * The Noekeon round constants
00030       */
00031       static const byte RC[17];
00032 
00033       /**
00034       * @return const reference to encryption subkeys
00035       */
00036       const secure_vector<u32bit>& get_EK() const { return EK; }
00037 
00038       /**
00039       * @return const reference to decryption subkeys
00040       */
00041       const secure_vector<u32bit>& get_DK() const { return DK; }
00042 
00043    private:
00044       void key_schedule(const byte[], size_t);
00045       secure_vector<u32bit> EK, DK;
00046    };
00047 
00048 }
00049 
00050 #endif