/* * Skipjack * (C) 1999-2007 Jack Lloyd * * Distributed under the terms of the Botan license */ #ifndef BOTAN_SKIPJACK_H__ #define BOTAN_SKIPJACK_H__ #include <botan/block_cipher.h> namespace Botan { /** * Skipjack, a NSA designed cipher used in Fortezza */ class BOTAN_DLL Skipjack : public BlockCipher { public: void encrypt_n(const byte in[], byte out[], u32bit blocks) const; void decrypt_n(const byte in[], byte out[], u32bit blocks) const; void clear(); std::string name() const { return "Skipjack"; } BlockCipher* clone() const { return new Skipjack; } Skipjack() : BlockCipher(8, 10), FTAB(2560) {} private: void key_schedule(const byte[], u32bit); SecureVector<byte> FTAB; }; } #endif