sha1.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include "i_swap.h"
#include "sha1.h"

Include dependency graph for sha1.c:

Macros
#define	K1   0x5A827999L
#define	K2   0x6ED9EBA1L
#define	K3   0x8F1BBCDCL
#define	K4   0xCA62C1D6L
#define	F1(x, y, z)   ( z ^ ( x & ( y ^ z ) ) )
#define	F2(x, y, z)   ( x ^ y ^ z )
#define	F3(x, y, z)   ( ( x & y ) | ( z & ( x | y ) ) )
#define	F4(x, y, z)   ( x ^ y ^ z )
#define	rol(x, n)   ( ((x) << (n)) | ((x) >> (32-(n))) )
#define	M(i)
#define	R(a, b, c, d, e, f, k, m)
#define	X(a)

Functions
void	SHA1_Init (sha1_context_t *hd)
void	SHA1_Update (sha1_context_t *hd, byte *inbuf, size_t inlen)
void	SHA1_Final (sha1_digest_t digest, sha1_context_t *hd)
void	SHA1_UpdateInt32 (sha1_context_t *context, unsigned int val)
void	SHA1_UpdateString (sha1_context_t *context, char *str)

Macro Definition Documentation

F1

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

F2

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

F3

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

F4

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

K1

#define K1   0x5A827999L

K2

#define K2   0x6ED9EBA1L

K3

#define K3   0x8F1BBCDCL

K4

#define K4   0xCA62C1D6L

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)) )

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)

rol

#define rol	(		x,
			n
	)		( ((x) << (n)) | ((x) >> (32-(n))) )

X

#define X

(

a

)

Value:

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

Function Documentation

SHA1_Final()

void SHA1_Final	(	sha1_digest_t	digest,
		sha1_context_t *	hd
	)

SHA1_Init()

void SHA1_Init

(

sha1_context_t *

hd

)

SHA1_Update()

void SHA1_Update	(	sha1_context_t *	hd,
		byte *	inbuf,
		size_t	inlen
	)

SHA1_UpdateInt32()

void SHA1_UpdateInt32	(	sha1_context_t *	context,
		unsigned int	val
	)

SHA1_UpdateString()

void SHA1_UpdateString	(	sha1_context_t *	context,
		char *	str
	)