Coverage Report

Created: 2020-05-23 13:54

/src/botan/build/include/botan/serpent.h
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/*
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* Serpent
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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_SERPENT_H_
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#define BOTAN_SERPENT_H_
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#include <botan/block_cipher.h>
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BOTAN_FUTURE_INTERNAL_HEADER(serpent.h)
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namespace Botan {
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/**
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* Serpent is the most conservative of the AES finalists
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* https://www.cl.cam.ac.uk/~rja14/serpent.html
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*/
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class BOTAN_PUBLIC_API(2,0) Serpent 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 provider() const override;
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      std::string name() const override { return "Serpent"; }
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      BlockCipher* clone() const override { return new Serpent; }
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      size_t parallelism() const override { return 4; }
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   private:
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#if defined(BOTAN_HAS_SERPENT_SIMD)
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      void simd_encrypt_4(const uint8_t in[64], uint8_t out[64]) const;
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      void simd_decrypt_4(const uint8_t in[64], uint8_t out[64]) const;
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#endif
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#if defined(BOTAN_HAS_SERPENT_AVX2)
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      void avx2_encrypt_8(const uint8_t in[64], uint8_t out[64]) const;
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      void avx2_decrypt_8(const uint8_t in[64], uint8_t out[64]) const;
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#endif
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      void key_schedule(const uint8_t key[], size_t length) override;
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      secure_vector<uint32_t> m_round_key;
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   };
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}
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#endif