/usr/include/botan/turing.h is in libbotan1.8-dev 1.8.13-4.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | /*
* Turing
* (C) 1999-2007 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
#ifndef BOTAN_TURING_H__
#define BOTAN_TURING_H__
#include <botan/stream_cipher.h>
namespace Botan {
/*
* Turing
*/
class BOTAN_DLL Turing : public StreamCipher
{
public:
void clear() throw();
std::string name() const { return "Turing"; }
StreamCipher* clone() const { return new Turing; }
Turing() : StreamCipher(4, 32, 4) { position = 0; }
private:
void cipher(const byte[], byte[], u32bit);
void key_schedule(const byte[], u32bit);
void resync(const byte[], u32bit);
void generate();
static u32bit fixedS(u32bit);
static void gen_sbox(MemoryRegion<u32bit>&, u32bit,
const MemoryRegion<u32bit>&);
static const u32bit Q_BOX[256];
static const byte SBOX[256];
SecureBuffer<u32bit, 256> S0, S1, S2, S3;
SecureBuffer<u32bit, 17> R;
SecureVector<u32bit> K;
SecureBuffer<byte, 340> buffer;
u32bit position;
};
}
#endif
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