cHashSHA512.cpp File Reference

#include "pch.h"
#include "Hash/cHashSHA512.h"
#include "GrayCore/include/cBits.h"

Namespaces
	GrayLib

Macros
#define	SHR(x, n)   (x >> n)
#define	S0(x)   (cBits::Rotr<UINT64>(x, 1) ^ cBits::Rotr<UINT64>(x, 8) ^ SHR(x, 7))
#define	S1(x)   (cBits::Rotr<UINT64>(x,19) ^ cBits::Rotr<UINT64>(x,61) ^ SHR(x, 6))
#define	S2(x)   (cBits::Rotr<UINT64>(x,28) ^ cBits::Rotr<UINT64>(x,34) ^ cBits::Rotr<UINT64>(x,39))
#define	S3(x)   (cBits::Rotr<UINT64>(x,14) ^ cBits::Rotr<UINT64>(x,18) ^ cBits::Rotr<UINT64>(x,41))
#define	F0(x, y, z)   ((x & y) | (z & (x | y)))
#define	F1(x, y, z)   (z ^ (x & (y ^ z)))
#define	P(a, b, c, d, e, f, g, h, x, K)

Detailed Description

FIPS-180-2 compliant SHA-384/512 implementation The SHA-512 Secure Hash Standard was published by NIST in 2002. http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf

Copyright

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

Macro Definition Documentation

F0

#define F0	(		x,
			y,
			z
	)		((x & y) | (z & (x | y)))

F1

#define F1	(		x,
			y,
			z
	)		(z ^ (x & (y ^ z)))

P

#define P	(		a,
			b,
			c,
			d,
			e,
			f,
			g,
			h,
			x,
			K
	)

Value:

        {                                           \
        UINT64 temp1 = h + S3(e) + F1(e,f,g) + K + x;      \
        UINT64 temp2 = S2(a) + F0(a,b,c);                       \
        d += temp1; h = temp1 + temp2;    i++;      \
        }

S0

#define S0

(

x

)

(cBits::Rotr<UINT64>(x, 1) ^ cBits::Rotr<UINT64>(x, 8) ^ SHR(x, 7))

S1

#define S1

(

x

)

(cBits::Rotr<UINT64>(x,19) ^ cBits::Rotr<UINT64>(x,61) ^ SHR(x, 6))

S2

#define S2

(

x

)

(cBits::Rotr<UINT64>(x,28) ^ cBits::Rotr<UINT64>(x,34) ^ cBits::Rotr<UINT64>(x,39))

S3

#define S3

(

x

)

(cBits::Rotr<UINT64>(x,14) ^ cBits::Rotr<UINT64>(x,18) ^ cBits::Rotr<UINT64>(x,41))

SHR

#define SHR	(		x,
			n
	)		(x >> n)