Botan  2.7.0
Crypto and TLS for C++11
Namespaces | Macros
gost_28147.cpp File Reference
#include <botan/gost_28147.h>
#include <botan/exceptn.h>
#include <botan/loadstor.h>

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Macros

#define GOST_2ROUND(N1, N2, R1, R2)
 

Macro Definition Documentation

◆ GOST_2ROUND

#define GOST_2ROUND (   N1,
  N2,
  R1,
  R2 
)
Value:
do { \
uint32_t T0 = N1 + m_EK[R1]; \
N2 ^= m_SBOX[get_byte(3, T0)] | \
m_SBOX[get_byte(2, T0)+256] | \
m_SBOX[get_byte(1, T0)+512] | \
m_SBOX[get_byte(0, T0)+768]; \
\
uint32_t T1 = N2 + m_EK[R2]; \
N1 ^= m_SBOX[get_byte(3, T1)] | \
m_SBOX[get_byte(2, T1)+256] | \
m_SBOX[get_byte(1, T1)+512] | \
m_SBOX[get_byte(0, T1)+768]; \
} while(0)
uint8_t get_byte(size_t byte_num, T input)
Definition: loadstor.h:39

Definition at line 95 of file gost_28147.cpp.

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