/usr/include/botan/cast128.h is in libbotan1.8-dev 1.8.13-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | /*
* CAST-128
* (C) 1999-2007 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
#ifndef BOTAN_CAST128_H__
#define BOTAN_CAST128_H__
#include <botan/block_cipher.h>
namespace Botan {
/*
* CAST-128
*/
class BOTAN_DLL CAST_128 : public BlockCipher
{
public:
void clear() throw() { MK.clear(); RK.clear(); }
std::string name() const { return "CAST-128"; }
BlockCipher* clone() const { return new CAST_128; }
CAST_128() : BlockCipher(8, 11, 16) {}
private:
void enc(const byte[], byte[]) const;
void dec(const byte[], byte[]) const;
void key_schedule(const byte[], u32bit);
static void key_schedule(u32bit[16], u32bit[4]);
static const u32bit S5[256];
static const u32bit S6[256];
static const u32bit S7[256];
static const u32bit S8[256];
SecureBuffer<u32bit, 16> MK, RK;
};
extern const u32bit CAST_SBOX1[256];
extern const u32bit CAST_SBOX2[256];
extern const u32bit CAST_SBOX3[256];
extern const u32bit CAST_SBOX4[256];
}
#endif
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