Coverage Report

Created: 2021-02-21 07:20

/src/botan/build/include/botan/internal/blowfish.h
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/*
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* Blowfish
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* (C) 1999-2011 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_BLOWFISH_H_
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#define BOTAN_BLOWFISH_H_
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#include <botan/block_cipher.h>
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namespace Botan {
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/**
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* Blowfish
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*/
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class BOTAN_TEST_API Blowfish final : public Block_Cipher_Fixed_Params<8, 1, 56>
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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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      /**
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      * Modified EKSBlowfish key schedule, used for bcrypt password hashing
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      */
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      void salted_set_key(const uint8_t key[], size_t key_length,
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                          const uint8_t salt[], size_t salt_length,
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                          const size_t workfactor, bool salt_first = false);
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      void clear() override;
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      std::string name() const override { return "Blowfish"; }
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      BlockCipher* clone() const override { return new Blowfish; }
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   private:
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      void key_schedule(const uint8_t key[], size_t length) override;
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      void key_expansion(const uint8_t key[],
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                         size_t key_length,
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                         const uint8_t salt[],
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                         size_t salt_length);
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      void generate_sbox(secure_vector<uint32_t>& box,
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                         uint32_t& L, uint32_t& R,
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                         const uint8_t salt[],
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                         size_t salt_length,
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                         size_t salt_off) const;
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      secure_vector<uint32_t> m_S, m_P;
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   };
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}
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#endif