Coverage Report

Created: 2020-06-30 13:58

/src/botan/build/include/botan/twofish.h
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/*
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* Twofish
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* (C) 1999-2007 Jack Lloyd
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*
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* Botan is released under the Simplified BSD License (see license.txt)
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*/
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#ifndef BOTAN_TWOFISH_H_
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#define BOTAN_TWOFISH_H_
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#include <botan/block_cipher.h>
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BOTAN_FUTURE_INTERNAL_HEADER(twofish.h)
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namespace Botan {
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/**
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* Twofish, an AES finalist
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*/
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class BOTAN_PUBLIC_API(2,0) Twofish final : public Block_Cipher_Fixed_Params<16, 16, 32, 8>
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   {
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   public:
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      void encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override;
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      void decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override;
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      void clear() override;
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      std::string name() const override { return "Twofish"; }
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      BlockCipher* clone() const override { return new Twofish; }
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   private:
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      void key_schedule(const uint8_t[], size_t) override;
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      static const uint32_t MDS0[256];
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      static const uint32_t MDS1[256];
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      static const uint32_t MDS2[256];
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      static const uint32_t MDS3[256];
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      static const uint8_t Q0[256];
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      static const uint8_t Q1[256];
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      static const uint8_t RS[32];
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      static const uint8_t EXP_TO_POLY[255];
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      static const uint8_t POLY_TO_EXP[255];
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      secure_vector<uint32_t> m_SB, m_RK;
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   };
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}
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#endif