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/*
* Serpent
* (C) 1999-2007 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
#include <botan/serpent.h>
#include <botan/loadstor.h>
#include <botan/rotate.h>
namespace Botan {
namespace {
/*
* Serpent Encryption S-Box 1
*/
inline void SBoxE1(u32bit& B0, u32bit& B1, u32bit& B2, u32bit& B3)
{
u32bit T0 = B0, T1 = B1, T2 = B2, T3 = B3, T4;
T3 ^= T0; T4 = T1; T1 &= T3; T4 ^= T2; T1 ^= T0; T0 |= T3; T0 ^= T4;
T4 ^= T3; T3 ^= T2; T2 |= T1; T2 ^= T4; T4 = ~T4; T4 |= T1; T1 ^= T3;
T1 ^= T4; T3 |= T0; T1 ^= T3; T4 ^= T3;
B0 = T1; B1 = T4; B2 = T2; B3 = T0;
}
/*
* Serpent Encryption S-Box 2
*/
inline void SBoxE2(u32bit& B0, u32bit& B1, u32bit& B2, u32bit& B3)
{
u32bit T0 = B0, T1 = B1, T2 = B2, T3 = B3, T4;
T0 = ~T0; T2 = ~T2; T4 = T0; T0 &= T1; T2 ^= T0; T0 |= T3; T3 ^= T2;
T1 ^= T0; T0 ^= T4; T4 |= T1; T1 ^= T3; T2 |= T0; T2 &= T4; T0 ^= T1;
T1 &= T2; T1 ^= T0; T0 &= T2; T0 ^= T4;
B0 = T2; B1 = T0; B2 = T3; B3 = T1;
}
/*
* Serpent Encryption S-Box 3
*/
inline void SBoxE3(u32bit& B0, u32bit& B1, u32bit& B2, u32bit& B3)
{
u32bit T0 = B0, T1 = B1, T2 = B2, T3 = B3, T4;
T4 = T0; T0 &= T2; T0 ^= T3; T2 ^= T1; T2 ^= T0; T3 |= T4; T3 ^= T1;
T4 ^= T2; T1 = T3; T3 |= T4; T3 ^= T0; T0 &= T1; T4 ^= T0; T1 ^= T3;
T1 ^= T4; T4 = ~T4;
B0 = T2; B1 = T3; B2 = T1; B3 = T4;
}
/*
* Serpent Encryption S-Box 4
*/
inline void SBoxE4(u32bit& B0, u32bit& B1, u32bit& B2, u32bit& B3)
{
u32bit T0 = B0, T1 = B1, T2 = B2, T3 = B3, T4;
T4 = T0; T0 |= T3; T3 ^= T1; T1 &= T4; T4 ^= T2; T2 ^= T3; T3 &= T0;
T4 |= T1; T3 ^= T4; T0 ^= T1; T4 &= T0; T1 ^= T3; T4 ^= T2; T1 |= T0;
T1 ^= T2; T0 ^= T3; T2 = T1; T1 |= T3; T1 ^= T0;
B0 = T1; B1 = T2; B2 = T3; B3 = T4;
}
/*
* Serpent Encryption S-Box 5
*/
inline void SBoxE5(u32bit& B0, u32bit& B1, u32bit& B2, u32bit& B3)
{
u32bit T0 = B0, T1 = B1, T2 = B2, T3 = B3, T4;
T1 ^= T3; T3 = ~T3; T2 ^= T3; T3 ^= T0; T4 = T1; T1 &= T3; T1 ^= T2;
T4 ^= T3; T0 ^= T4; T2 &= T4; T2 ^= T0; T0 &= T1; T3 ^= T0; T4 |= T1;
T4 ^= T0; T0 |= T3; T0 ^= T2; T2 &= T3; T0 = ~T0; T4 ^= T2;
B0 = T1; B1 = T4; B2 = T0; B3 = T3;
}
/*
* Serpent Encryption S-Box 6
*/
inline void SBoxE6(u32bit& B0, u32bit& B1, u32bit& B2, u32bit& B3)
{
u32bit T0 = B0, T1 = B1, T2 = B2, T3 = B3, T4;
T0 ^= T1; T1 ^= T3; T3 = ~T3; T4 = T1; T1 &= T0; T2 ^= T3; T1 ^= T2;
T2 |= T4; T4 ^= T3; T3 &= T1; T3 ^= T0; T4 ^= T1; T4 ^= T2; T2 ^= T0;
T0 &= T3; T2 = ~T2; T0 ^= T4; T4 |= T3; T2 ^= T4;
B0 = T1; B1 = T3; B2 = T0; B3 = T2;
}
/*
* Serpent Encryption S-Box 7
*/
inline void SBoxE7(u32bit& B0, u32bit& B1, u32bit& B2, u32bit& B3)
{
u32bit T0 = B0, T1 = B1, T2 = B2, T3 = B3, T4;
T2 = ~T2; T4 = T3; T3 &= T0; T0 ^= T4; T3 ^= T2; T2 |= T4; T1 ^= T3;
T2 ^= T0; T0 |= T1; T2 ^= T1; T4 ^= T0; T0 |= T3; T0 ^= T2; T4 ^= T3;
T4 ^= T0; T3 = ~T3; T2 &= T4; T2 ^= T3;
B0 = T0; B1 = T1; B2 = T4; B3 = T2;
}
/*
* Serpent Encryption S-Box 8
*/
inline void SBoxE8(u32bit& B0, u32bit& B1, u32bit& B2, u32bit& B3)
{
u32bit T0 = B0, T1 = B1, T2 = B2, T3 = B3, T4;
T4 = T1; T1 |= T2; T1 ^= T3; T4 ^= T2; T2 ^= T1; T3 |= T4; T3 &= T0;
T4 ^= T2; T3 ^= T1; T1 |= T4; T1 ^= T0; T0 |= T4; T0 ^= T2; T1 ^= T4;
T2 ^= T1; T1 &= T0; T1 ^= T4; T2 = ~T2; T2 |= T0; T4 ^= T2;
B0 = T4; B1 = T3; B2 = T1; B3 = T0;
}
/*
* Serpent Decryption S-Box 1
*/
inline void SBoxD1(u32bit& B0, u32bit& B1, u32bit& B2, u32bit& B3)
{
u32bit T0 = B0, T1 = B1, T2 = B2, T3 = B3, T4;
T2 = ~T2; T4 = T1; T1 |= T0; T4 = ~T4; T1 ^= T2; T2 |= T4; T1 ^= T3;
T0 ^= T4; T2 ^= T0; T0 &= T3; T4 ^= T0; T0 |= T1; T0 ^= T2; T3 ^= T4;
T2 ^= T1; T3 ^= T0; T3 ^= T1; T2 &= T3; T4 ^= T2;
B0 = T0; B1 = T4; B2 = T1; B3 = T3;
}
/*
* Serpent Decryption S-Box 2
*/
inline void SBoxD2(u32bit& B0, u32bit& B1, u32bit& B2, u32bit& B3)
{
u32bit T0 = B0, T1 = B1, T2 = B2, T3 = B3, T4;
T4 = T1; T1 ^= T3; T3 &= T1; T4 ^= T2; T3 ^= T0; T0 |= T1; T2 ^= T3;
T0 ^= T4; T0 |= T2; T1 ^= T3; T0 ^= T1; T1 |= T3; T1 ^= T0; T4 = ~T4;
T4 ^= T1; T1 |= T0; T1 ^= T0; T1 |= T4; T3 ^= T1;
B0 = T4; B1 = T0; B2 = T3; B3 = T2;
}
/*
* Serpent Decryption S-Box 3
*/
inline void SBoxD3(u32bit& B0, u32bit& B1, u32bit& B2, u32bit& B3)
{
u32bit T0 = B0, T1 = B1, T2 = B2, T3 = B3, T4;
T2 ^= T3; T3 ^= T0; T4 = T3; T3 &= T2; T3 ^= T1; T1 |= T2; T1 ^= T4;
T4 &= T3; T2 ^= T3; T4 &= T0; T4 ^= T2; T2 &= T1; T2 |= T0; T3 = ~T3;
T2 ^= T3; T0 ^= T3; T0 &= T1; T3 ^= T4; T3 ^= T0;
B0 = T1; B1 = T4; B2 = T2; B3 = T3;
}
/*
* Serpent Decryption S-Box 4
*/
inline void SBoxD4(u32bit& B0, u32bit& B1, u32bit& B2, u32bit& B3)
{
u32bit T0 = B0, T1 = B1, T2 = B2, T3 = B3, T4;
T4 = T2; T2 ^= T1; T0 ^= T2; T4 &= T2; T4 ^= T0; T0 &= T1; T1 ^= T3;
T3 |= T4; T2 ^= T3; T0 ^= T3; T1 ^= T4; T3 &= T2; T3 ^= T1; T1 ^= T0;
T1 |= T2; T0 ^= T3; T1 ^= T4; T0 ^= T1;
B0 = T2; B1 = T1; B2 = T3; B3 = T0;
}
/*
* Serpent Decryption S-Box 5
*/
inline void SBoxD5(u32bit& B0, u32bit& B1, u32bit& B2, u32bit& B3)
{
u32bit T0 = B0, T1 = B1, T2 = B2, T3 = B3, T4;
T4 = T2; T2 &= T3; T2 ^= T1; T1 |= T3; T1 &= T0; T4 ^= T2; T4 ^= T1;
T1 &= T2; T0 = ~T0; T3 ^= T4; T1 ^= T3; T3 &= T0; T3 ^= T2; T0 ^= T1;
T2 &= T0; T3 ^= T0; T2 ^= T4; T2 |= T3; T3 ^= T0; T2 ^= T1;
B0 = T0; B1 = T3; B2 = T2; B3 = T4;
}
/*
* Serpent Decryption S-Box 6
*/
inline void SBoxD6(u32bit& B0, u32bit& B1, u32bit& B2, u32bit& B3)
{
u32bit T0 = B0, T1 = B1, T2 = B2, T3 = B3, T4;
T1 = ~T1; T4 = T3; T2 ^= T1; T3 |= T0; T3 ^= T2; T2 |= T1; T2 &= T0;
T4 ^= T3; T2 ^= T4; T4 |= T0; T4 ^= T1; T1 &= T2; T1 ^= T3; T4 ^= T2;
T3 &= T4; T4 ^= T1; T3 ^= T4; T4 = ~T4; T3 ^= T0;
B0 = T1; B1 = T4; B2 = T3; B3 = T2;
}
/*
* Serpent Decryption S-Box 7
*/
inline void SBoxD7(u32bit& B0, u32bit& B1, u32bit& B2, u32bit& B3)
{
u32bit T0 = B0, T1 = B1, T2 = B2, T3 = B3, T4;
T0 ^= T2; T4 = T2; T2 &= T0; T4 ^= T3; T2 = ~T2; T3 ^= T1; T2 ^= T3;
T4 |= T0; T0 ^= T2; T3 ^= T4; T4 ^= T1; T1 &= T3; T1 ^= T0; T0 ^= T3;
T0 |= T2; T3 ^= T1; T4 ^= T0;
B0 = T1; B1 = T2; B2 = T4; B3 = T3;
}
/*
* Serpent Decryption S-Box 8
*/
inline void SBoxD8(u32bit& B0, u32bit& B1, u32bit& B2, u32bit& B3)
{
u32bit T0 = B0, T1 = B1, T2 = B2, T3 = B3, T4;
T4 = T2; T2 ^= T0; T0 &= T3; T4 |= T3; T2 = ~T2; T3 ^= T1; T1 |= T0;
T0 ^= T2; T2 &= T4; T3 &= T4; T1 ^= T2; T2 ^= T0; T0 |= T2; T4 ^= T1;
T0 ^= T3; T3 ^= T4; T4 |= T0; T3 ^= T2; T4 ^= T2;
B0 = T3; B1 = T0; B2 = T1; B3 = T4;
}
/*
* Serpent's Linear Transformation
*/
inline void transform(u32bit& B0, u32bit& B1, u32bit& B2, u32bit& B3)
{
B0 = rotate_left(B0, 13); B2 = rotate_left(B2, 3);
B1 ^= B0 ^ B2; B3 ^= B2 ^ (B0 << 3);
B1 = rotate_left(B1, 1); B3 = rotate_left(B3, 7);
B0 ^= B1 ^ B3; B2 ^= B3 ^ (B1 << 7);
B0 = rotate_left(B0, 5); B2 = rotate_left(B2, 22);
}
/*
* Serpent's Inverse Linear Transformation
*/
inline void i_transform(u32bit& B0, u32bit& B1, u32bit& B2, u32bit& B3)
{
B2 = rotate_right(B2, 22); B0 = rotate_right(B0, 5);
B2 ^= B3 ^ (B1 << 7); B0 ^= B1 ^ B3;
B3 = rotate_right(B3, 7); B1 = rotate_right(B1, 1);
B3 ^= B2 ^ (B0 << 3); B1 ^= B0 ^ B2;
B2 = rotate_right(B2, 3); B0 = rotate_right(B0, 13);
}
}
/*
* XOR a key block with a data block
*/
#define key_xor(round, B0, B1, B2, B3) \
B0 ^= round_key[4*round ]; \
B1 ^= round_key[4*round+1]; \
B2 ^= round_key[4*round+2]; \
B3 ^= round_key[4*round+3];
/*
* Serpent Encryption
*/
void Serpent::enc(const byte in[], byte out[]) const
{
u32bit B0 = load_le<u32bit>(in, 0);
u32bit B1 = load_le<u32bit>(in, 1);
u32bit B2 = load_le<u32bit>(in, 2);
u32bit B3 = load_le<u32bit>(in, 3);
key_xor( 0,B0,B1,B2,B3); SBoxE1(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor( 1,B0,B1,B2,B3); SBoxE2(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor( 2,B0,B1,B2,B3); SBoxE3(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor( 3,B0,B1,B2,B3); SBoxE4(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor( 4,B0,B1,B2,B3); SBoxE5(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor( 5,B0,B1,B2,B3); SBoxE6(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor( 6,B0,B1,B2,B3); SBoxE7(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor( 7,B0,B1,B2,B3); SBoxE8(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor( 8,B0,B1,B2,B3); SBoxE1(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor( 9,B0,B1,B2,B3); SBoxE2(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor(10,B0,B1,B2,B3); SBoxE3(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor(11,B0,B1,B2,B3); SBoxE4(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor(12,B0,B1,B2,B3); SBoxE5(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor(13,B0,B1,B2,B3); SBoxE6(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor(14,B0,B1,B2,B3); SBoxE7(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor(15,B0,B1,B2,B3); SBoxE8(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor(16,B0,B1,B2,B3); SBoxE1(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor(17,B0,B1,B2,B3); SBoxE2(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor(18,B0,B1,B2,B3); SBoxE3(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor(19,B0,B1,B2,B3); SBoxE4(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor(20,B0,B1,B2,B3); SBoxE5(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor(21,B0,B1,B2,B3); SBoxE6(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor(22,B0,B1,B2,B3); SBoxE7(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor(23,B0,B1,B2,B3); SBoxE8(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor(24,B0,B1,B2,B3); SBoxE1(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor(25,B0,B1,B2,B3); SBoxE2(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor(26,B0,B1,B2,B3); SBoxE3(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor(27,B0,B1,B2,B3); SBoxE4(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor(28,B0,B1,B2,B3); SBoxE5(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor(29,B0,B1,B2,B3); SBoxE6(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor(30,B0,B1,B2,B3); SBoxE7(B0,B1,B2,B3); transform(B0,B1,B2,B3);
key_xor(31,B0,B1,B2,B3); SBoxE8(B0,B1,B2,B3); key_xor(32,B0,B1,B2,B3);
store_le(out, B0, B1, B2, B3);
}
/*
* Serpent Decryption
*/
void Serpent::dec(const byte in[], byte out[]) const
{
u32bit B0 = load_le<u32bit>(in, 0);
u32bit B1 = load_le<u32bit>(in, 1);
u32bit B2 = load_le<u32bit>(in, 2);
u32bit B3 = load_le<u32bit>(in, 3);
key_xor(32,B0,B1,B2,B3); SBoxD8(B0,B1,B2,B3); key_xor(31,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD7(B0,B1,B2,B3); key_xor(30,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD6(B0,B1,B2,B3); key_xor(29,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD5(B0,B1,B2,B3); key_xor(28,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD4(B0,B1,B2,B3); key_xor(27,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD3(B0,B1,B2,B3); key_xor(26,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD2(B0,B1,B2,B3); key_xor(25,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD1(B0,B1,B2,B3); key_xor(24,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD8(B0,B1,B2,B3); key_xor(23,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD7(B0,B1,B2,B3); key_xor(22,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD6(B0,B1,B2,B3); key_xor(21,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD5(B0,B1,B2,B3); key_xor(20,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD4(B0,B1,B2,B3); key_xor(19,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD3(B0,B1,B2,B3); key_xor(18,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD2(B0,B1,B2,B3); key_xor(17,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD1(B0,B1,B2,B3); key_xor(16,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD8(B0,B1,B2,B3); key_xor(15,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD7(B0,B1,B2,B3); key_xor(14,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD6(B0,B1,B2,B3); key_xor(13,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD5(B0,B1,B2,B3); key_xor(12,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD4(B0,B1,B2,B3); key_xor(11,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD3(B0,B1,B2,B3); key_xor(10,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD2(B0,B1,B2,B3); key_xor( 9,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD1(B0,B1,B2,B3); key_xor( 8,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD8(B0,B1,B2,B3); key_xor( 7,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD7(B0,B1,B2,B3); key_xor( 6,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD6(B0,B1,B2,B3); key_xor( 5,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD5(B0,B1,B2,B3); key_xor( 4,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD4(B0,B1,B2,B3); key_xor( 3,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD3(B0,B1,B2,B3); key_xor( 2,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD2(B0,B1,B2,B3); key_xor( 1,B0,B1,B2,B3);
i_transform(B0,B1,B2,B3); SBoxD1(B0,B1,B2,B3); key_xor( 0,B0,B1,B2,B3);
store_le(out, B0, B1, B2, B3);
}
/*
* Serpent Key Schedule
*/
void Serpent::key_schedule(const byte key[], u32bit length)
{
const u32bit PHI = 0x9E3779B9;
SecureBuffer<u32bit, 140> W;
for(u32bit j = 0; j != length / 4; ++j)
W[j] = load_le<u32bit>(key, j);
W[length / 4] |= u32bit(1) << ((length%4)*8);
for(u32bit j = 8; j != 140; ++j)
W[j] = rotate_left(W[j-8] ^ W[j-5] ^ W[j-3] ^ W[j-1] ^ PHI ^ (j-8), 11);
SBoxE4(W[ 8],W[ 9],W[ 10],W[ 11]); SBoxE3(W[ 12],W[ 13],W[ 14],W[ 15]);
SBoxE2(W[ 16],W[ 17],W[ 18],W[ 19]); SBoxE1(W[ 20],W[ 21],W[ 22],W[ 23]);
SBoxE8(W[ 24],W[ 25],W[ 26],W[ 27]); SBoxE7(W[ 28],W[ 29],W[ 30],W[ 31]);
SBoxE6(W[ 32],W[ 33],W[ 34],W[ 35]); SBoxE5(W[ 36],W[ 37],W[ 38],W[ 39]);
SBoxE4(W[ 40],W[ 41],W[ 42],W[ 43]); SBoxE3(W[ 44],W[ 45],W[ 46],W[ 47]);
SBoxE2(W[ 48],W[ 49],W[ 50],W[ 51]); SBoxE1(W[ 52],W[ 53],W[ 54],W[ 55]);
SBoxE8(W[ 56],W[ 57],W[ 58],W[ 59]); SBoxE7(W[ 60],W[ 61],W[ 62],W[ 63]);
SBoxE6(W[ 64],W[ 65],W[ 66],W[ 67]); SBoxE5(W[ 68],W[ 69],W[ 70],W[ 71]);
SBoxE4(W[ 72],W[ 73],W[ 74],W[ 75]); SBoxE3(W[ 76],W[ 77],W[ 78],W[ 79]);
SBoxE2(W[ 80],W[ 81],W[ 82],W[ 83]); SBoxE1(W[ 84],W[ 85],W[ 86],W[ 87]);
SBoxE8(W[ 88],W[ 89],W[ 90],W[ 91]); SBoxE7(W[ 92],W[ 93],W[ 94],W[ 95]);
SBoxE6(W[ 96],W[ 97],W[ 98],W[ 99]); SBoxE5(W[100],W[101],W[102],W[103]);
SBoxE4(W[104],W[105],W[106],W[107]); SBoxE3(W[108],W[109],W[110],W[111]);
SBoxE2(W[112],W[113],W[114],W[115]); SBoxE1(W[116],W[117],W[118],W[119]);
SBoxE8(W[120],W[121],W[122],W[123]); SBoxE7(W[124],W[125],W[126],W[127]);
SBoxE6(W[128],W[129],W[130],W[131]); SBoxE5(W[132],W[133],W[134],W[135]);
SBoxE4(W[136],W[137],W[138],W[139]);
round_key.copy(W + 8, 132);
}
}
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