gost_28147.cpp File Reference

#include <botan/gost_28147.h>
#include <botan/loadstor.h>
#include <botan/rotate.h>

Go to the source code of this file.

Namespaces
namespace	Botan

Macros
#define	GOST_2ROUND(N1, N2, R1, R2)

Macro Definition Documentation

GOST_2ROUND

#define GOST_2ROUND	(		N1,
			N2,
			R1,
			R2 )

Value:

do {                               \
u32bit T0 = N1 + EK[R1];           \
N2 ^= SBOX[get_byte(3, T0)] |      \
      SBOX[get_byte(2, T0)+256] |  \
      SBOX[get_byte(1, T0)+512] |  \
      SBOX[get_byte(0, T0)+768];   \
                                   \
u32bit T1 = N2 + EK[R2];           \
N1 ^= SBOX[get_byte(3, T1)] |      \
      SBOX[get_byte(2, T1)+256] |  \
      SBOX[get_byte(1, T1)+512] |  \
      SBOX[get_byte(0, T1)+768];   \
} while(0)

Definition at line 89 of file gost_28147.cpp.

Referenced by Botan::GOST_28147_89::decrypt_n(), and Botan::GOST_28147_89::encrypt_n().