sha1.cpp File Reference

Compute sha1 hash. More...

#include <cstring>
#include "sha1.hpp"

Include dependency graph for sha1.cpp:

Go to the source code of this file.

Macros
#define	X(a)
	Helper value for SHA1's computing. More...
#define	K1   0x5A827999L
	Helper value for SHA1's computing. More...
#define	K2   0x6ED9EBA1L
	Helper value for SHA1's computing. More...
#define	K3   0x8F1BBCDCL
	Helper value for SHA1's computing. More...
#define	K4   0xCA62C1D6L
	Helper value for SHA1's computing. More...
#define	F1(x, y, z)   ( z ^ ( x & ( y ^ z ) ) )
	Helper value for SHA1's computing. More...
#define	F2(x, y, z)   ( x ^ y ^ z )
	Helper value for SHA1's computing. More...
#define	F3(x, y, z)   ( ( x & y ) | ( z & ( x | y ) ) )
	Helper value for SHA1's computing. More...
#define	F4(x, y, z)   ( x ^ y ^ z )
	Helper value for SHA1's computing. More...
#define	M(i)
	Helper value for SHA1's computing. More...
#define	R(a, b, c, d, e, f, k, m)
	Helper value for SHA1's computing. More...

Detailed Description

Compute sha1 hash.

Definition in file sha1.cpp.

Macro Definition Documentation

F1

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

Helper value for SHA1's computing.

F2

#define F2	(		x,
			y,
			z
	)		( x ^ y ^ z )

Helper value for SHA1's computing.

F3

#define F3	(		x,
			y,
			z
	)		( ( x & y ) | ( z & ( x | y ) ) )

Helper value for SHA1's computing.

F4

#define F4	(		x,
			y,
			z
	)		( x ^ y ^ z )

Helper value for SHA1's computing.

K1

#define K1   0x5A827999L

Helper value for SHA1's computing.

K2

#define K2   0x6ED9EBA1L

Helper value for SHA1's computing.

K3

#define K3   0x8F1BBCDCL

Helper value for SHA1's computing.

K4

#define K4   0xCA62C1D6L

Helper value for SHA1's computing.

M

#define M

(

i

)

Value:

                      ( tm =   x[i & 0x0f] ^ x[(i - 14) & 0x0f] \
                      ^ x[(i - 8) & 0x0f] ^ x[(i - 3) & 0x0f] \
                 , (x[i & 0x0f] = rol(tm, 1)) )

Helper value for SHA1's computing.

R

#define R	(		a,
			b,
			c,
			d,
			e,
			f,
			k,
			m
	)

Value:

                                        do { e += rol(a, 5) \
                                        + f(b, c, d) \
                                        + k \
                                        + m; \
                                   b = rol( b, 30 ); \
                                 } while(0)

Helper value for SHA1's computing.

X

#define X

(

a

)

Value:

                    do { *p++ = h##a >> 24; *p++ = h##a >> 16;   \
                    *p++ = h##a >> 8; *p++ = h##a; } while(0)

Helper value for SHA1's computing.