Botan 2.19.1
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
14
15namespace Botan {
16
17/**
18* Twofish, an AES finalist
19*/
20class BOTAN_PUBLIC_API(2,0) Twofish final : public Block_Cipher_Fixed_Params<16, 16, 32, 8>
21 {
22 public:
23 void encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override;
24 void decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const override;
25
26 void clear() override;
27 std::string name() const override { return "Twofish"; }
28 BlockCipher* clone() const override { return new Twofish; }
29 private:
30 void key_schedule(const uint8_t[], size_t) override;
31
32 static const uint32_t MDS0[256];
33 static const uint32_t MDS1[256];
34 static const uint32_t MDS2[256];
35 static const uint32_t MDS3[256];
36 static const uint8_t Q0[256];
37 static const uint8_t Q1[256];
38 static const uint8_t RS[32];
39 static const uint8_t EXP_TO_POLY[255];
40 static const uint8_t POLY_TO_EXP[255];
41
42 secure_vector<uint32_t> m_SB, m_RK;
43 };
44
45}
46
47#endif
virtual void decrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const =0
virtual void encrypt_n(const uint8_t in[], uint8_t out[], size_t blocks) const =0
virtual void clear()=0
BlockCipher * clone() const override
Definition: twofish.h:28
std::string name() const override
Definition: twofish.h:27
int(* final)(unsigned char *, CTX *)
#define BOTAN_PUBLIC_API(maj, min)
Definition: compiler.h:31
#define BOTAN_FUTURE_INTERNAL_HEADER(hdr)
Definition: compiler.h:136
Definition: alg_id.cpp:13
std::vector< T, secure_allocator< T > > secure_vector
Definition: secmem.h:65