Botan 3.3.0
Crypto and TLS for C&
twofish.h
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1/*
2* Twofish
3* (C) 1999-2007 Jack Lloyd
4*
5* Botan is released under the Simplified BSD License (see license.txt)
6*/
7
8#ifndef BOTAN_TWOFISH_H_
9#define BOTAN_TWOFISH_H_
10
11#include <botan/block_cipher.h>
12
13namespace Botan {
14
15/**
16* Twofish, an AES finalist
17*/
18class Twofish final : public Block_Cipher_Fixed_Params<16, 16, 32, 8> {
19 public:
20 void encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override;
21 void decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override;
22
23 void clear() override;
24
25 std::string name() const override { return "Twofish"; }
26
27 std::unique_ptr<BlockCipher> new_object() const override { return std::make_unique<Twofish>(); }
28
29 bool has_keying_material() const override;
30
31 private:
32 void key_schedule(std::span<const uint8_t> key) override;
33
34 static const uint32_t MDS0[256];
35 static const uint32_t MDS1[256];
36 static const uint32_t MDS2[256];
37 static const uint32_t MDS3[256];
38 static const uint8_t Q0[256];
39 static const uint8_t Q1[256];
40 static const uint8_t RS[32];
41 static const uint8_t EXP_TO_POLY[255];
42 static const uint8_t POLY_TO_EXP[255];
43
44 secure_vector<uint32_t> m_SB, m_RK;
45};
46
47} // namespace Botan
48
49#endif
bool has_keying_material() const override
Definition twofish.cpp:186
void clear() override
Definition twofish.cpp:291
void encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override
Definition twofish.cpp:55
void decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override
Definition twofish.cpp:122
std::unique_ptr< BlockCipher > new_object() const override
Definition twofish.h:27
std::string name() const override
Definition twofish.h:25
int(* final)(unsigned char *, CTX *)
std::vector< T, secure_allocator< T > > secure_vector
Definition secmem.h:61