sha1.c File Reference

#include <string.h>
#include "sha1.h"
#include "byte.h"

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Macros
#define	rol(value, bits)   (((value) << (bits)) | ((value) >> (32 - (bits))))
#define	blk0(i)
#define	blk(i)
#define	R0(v, w, x, y, z, i)   z+=((w&(x^y))^y)+blk0(i)+0x5A827999+rol(v,5);w=rol(w,30);
#define	R1(v, w, x, y, z, i)   z+=((w&(x^y))^y)+blk(i)+0x5A827999+rol(v,5);w=rol(w,30);
#define	R2(v, w, x, y, z, i)   z+=(w^x^y)+blk(i)+0x6ED9EBA1+rol(v,5);w=rol(w,30);
#define	R3(v, w, x, y, z, i)   z+=(((w|x)&y)|(w&x))+blk(i)+0x8F1BBCDC+rol(v,5);w=rol(w,30);
#define	R4(v, w, x, y, z, i)   z+=(w^x^y)+blk(i)+0xCA62C1D6+rol(v,5);w=rol(w,30);

Functions
void	sha1_transform (uint32_t state[5], const uint8_t buffer[SHA1_BLOCKSIZE])
void	sha1_init (sha1_ctx *context)
void	sha1_update (sha1_ctx *context, const uint8_t *data, uint32_t len)
void	sha1_final (uint8_t digest[SHA1_DIGESTSIZE], sha1_ctx *context)
void	sha1_hash (char *hash, const char *str, uint32_t len)

Macro Definition Documentation

blk

#define blk

(

i

)

Value:

    (block->l[i&15] = rol(block->l[(i+13)&15]^block->l[(i+8)&15] \
    ^block->l[(i+2)&15]^block->l[i&15],1))

Definition at line 35 of file sha1.c.

blk0

#define blk0

(

i

)

Value:

    (block->l[i] = (rol(block->l[i],24) & 0xFF00FF00) \
    | (rol(block->l[i],8) & 0x00FF00FF))

Definition at line 30 of file sha1.c.

R0

#define R0	(		v,
			w,
			x,
			y,
			z,
			i
	)		z+=((w&(x^y))^y)+blk0(i)+0x5A827999+rol(v,5);w=rol(w,30);

Definition at line 39 of file sha1.c.

R1

#define R1	(		v,
			w,
			x,
			y,
			z,
			i
	)		z+=((w&(x^y))^y)+blk(i)+0x5A827999+rol(v,5);w=rol(w,30);

Definition at line 40 of file sha1.c.

R2

#define R2	(		v,
			w,
			x,
			y,
			z,
			i
	)		z+=(w^x^y)+blk(i)+0x6ED9EBA1+rol(v,5);w=rol(w,30);

Definition at line 41 of file sha1.c.

R3

#define R3	(		v,
			w,
			x,
			y,
			z,
			i
	)		z+=(((w|x)&y)|(w&x))+blk(i)+0x8F1BBCDC+rol(v,5);w=rol(w,30);

Definition at line 42 of file sha1.c.

R4

#define R4	(		v,
			w,
			x,
			y,
			z,
			i
	)		z+=(w^x^y)+blk(i)+0xCA62C1D6+rol(v,5);w=rol(w,30);

Definition at line 43 of file sha1.c.

rol

#define rol	(		value,
			bits
	)		(((value) << (bits)) | ((value) >> (32 - (bits))))

Definition at line 24 of file sha1.c.

Function Documentation

sha1_final()

void sha1_final	(	uint8_t	digest[SHA1_DIGESTSIZE],
		sha1_ctx *	context
	)

Definition at line 146 of file sha1.c.

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sha1_hash()

void sha1_hash	(	char *	hash,
		const char *	str,
		uint32_t	len
	)

Definition at line 177 of file sha1.c.

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sha1_init()

void sha1_init

(

sha1_ctx *

context

)

Definition at line 111 of file sha1.c.

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sha1_transform()

void sha1_transform	(	uint32_t	state[5],
		const uint8_t	buffer[SHA1_BLOCKSIZE]
	)

Definition at line 47 of file sha1.c.

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sha1_update()

void sha1_update	(	sha1_ctx *	context,
		const uint8_t *	data,
		uint32_t	len
	)

Definition at line 124 of file sha1.c.

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