cCipherAES.cpp File Reference

#include "pch.h"
#include "Cipher/cCipherAES.h"
#include "GrayCore/include/cBits.h"

Namespaces
	GrayLib

Macros
#define	MUL(x, y)   ((x && y) ? pow[(log[x] + log[y]) % 255] : 0)
#define	AES_FROUND(X0, X1, X2, X3, Y0, Y1, Y2, Y3)
#define	AES_RROUND(X0, X1, X2, X3, Y0, Y1, Y2, Y3)

Detailed Description

FIPS-197 compliant AES implementation The AES block cipher was designed by Vincent Rijmen and Joan Daemen. http://csrc.nist.gov/encryption/aes/rijndael/Rijndael.pdf http://csrc.nist.gov/publications/fips/fips197/fips-197.pdf

Copyright

1992 - 2020 Dennis Robinson (http://www.menasoft.com)

Macro Definition Documentation

AES_FROUND

#define AES_FROUND	(		X0,
			X1,
			X2,
			X3,
			Y0,
			Y1,
			Y2,
			Y3
	)

Value:

        {                                               \
        X0 = *pRK++ ^ s_T->m_FT0[ (Y0) & 0xFF ] ^   \
        s_T->m_FT1[ ( Y1 >>  8 ) & 0xFF ] ^   \
        s_T->m_FT2[ ( Y2 >> 16 ) & 0xFF ] ^   \
        s_T->m_FT3[ ( Y3 >> 24 ) & 0xFF ];    \
        \
        X1 = *pRK++ ^ s_T->m_FT0[ (Y1) & 0xFF ] ^   \
        s_T->m_FT1[ ( Y2 >>  8 ) & 0xFF ] ^   \
        s_T->m_FT2[ ( Y3 >> 16 ) & 0xFF ] ^   \
        s_T->m_FT3[ ( Y0 >> 24 ) & 0xFF ];    \
        \
        X2 = *pRK++ ^ s_T->m_FT0[ (Y2) & 0xFF ] ^   \
        s_T->m_FT1[ ( Y3 >>  8 ) & 0xFF ] ^   \
        s_T->m_FT2[ ( Y0 >> 16 ) & 0xFF ] ^   \
        s_T->m_FT3[ ( Y1 >> 24 ) & 0xFF ];    \
        \
        X3 = *pRK++ ^ s_T->m_FT0[ (Y3) & 0xFF ] ^   \
        s_T->m_FT1[ ( Y0 >>  8 ) & 0xFF ] ^   \
        s_T->m_FT2[ ( Y1 >> 16 ) & 0xFF ] ^   \
        s_T->m_FT3[ ( Y2 >> 24 ) & 0xFF ];    \
        }

AES_RROUND

#define AES_RROUND	(		X0,
			X1,
			X2,
			X3,
			Y0,
			Y1,
			Y2,
			Y3
	)

Value:

        {                                               \
        X0 = *pRK++ ^ s_T->m_RT0[ (Y0) & 0xFF ] ^   \
        s_T->m_RT1[ ( Y3 >>  8 ) & 0xFF ] ^   \
        s_T->m_RT2[ ( Y2 >> 16 ) & 0xFF ] ^   \
        s_T->m_RT3[ ( Y1 >> 24 ) & 0xFF ];    \
        \
        X1 = *pRK++ ^ s_T->m_RT0[ (Y1) & 0xFF ] ^   \
        s_T->m_RT1[ ( Y0 >>  8 ) & 0xFF ] ^   \
        s_T->m_RT2[ ( Y3 >> 16 ) & 0xFF ] ^   \
        s_T->m_RT3[ ( Y2 >> 24 ) & 0xFF ];    \
        \
        X2 = *pRK++ ^ s_T->m_RT0[ (Y2) & 0xFF ] ^   \
        s_T->m_RT1[ ( Y1 >>  8 ) & 0xFF ] ^   \
        s_T->m_RT2[ ( Y0 >> 16 ) & 0xFF ] ^   \
        s_T->m_RT3[ ( Y3 >> 24 ) & 0xFF ];    \
        \
        X3 = *pRK++ ^ s_T->m_RT0[ (Y3) & 0xFF ] ^   \
        s_T->m_RT1[ ( Y2 >>  8 ) & 0xFF ] ^   \
        s_T->m_RT2[ ( Y1 >> 16 ) & 0xFF ] ^   \
        s_T->m_RT3[ ( Y0 >> 24 ) & 0xFF ];    \
        }

MUL

#define MUL	(		x,
			y
	)		((x && y) ? pow[(log[x] + log[y]) % 255] : 0)