sha1.c File Reference

#include <stdio.h>
#include <string.h>
#include <endian.h>
#include "sha1.h"

Go to the source code of this file.

Defines
#define	rol(value, bits)   (((value) << (bits)) | ((value) >> (32 - (bits))))
#define	blk0(i)   block.l[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
static void	SHA1_Transform (uint32_t state[5], const uint8_t buffer[64])
void	sat_SHA1_Init (SHA1_CTX *context)
void	sat_SHA1_Update (SHA1_CTX *context, const uint8_t *data, const size_t len)
void	sat_SHA1_Final (SHA1_CTX *context, uint8_t digest[SHA1_DIGEST_SIZE])

---

Define Documentation

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

Definition at line 87 of file sha1.c.

#define blk0

(

i

)

block.l[i]

Definition at line 93 of file sha1.c.

#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 98 of file sha1.c.

#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 102 of file sha1.c.

Referenced by SHA1_Transform().

#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 103 of file sha1.c.

Referenced by SHA1_Transform().

#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 104 of file sha1.c.

Referenced by SHA1_Transform().

#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 105 of file sha1.c.

Referenced by SHA1_Transform().

#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 106 of file sha1.c.

Referenced by SHA1_Transform().

---

Function Documentation

static void SHA1_Transform	(	uint32_t	state[5],
		const uint8_t	buffer[64]
	)			[static]

Definition at line 110 of file sha1.c.

References R0, R1, R2, R3, and R4.

Referenced by sat_SHA1_Update().

void sat_SHA1_Init

(

SHA1_CTX *

context

)

Definition at line 163 of file sha1.c.

References SHA1_CTX::count, and SHA1_CTX::state.

Referenced by sat_chksum_create().

void sat_SHA1_Update	(	SHA1_CTX *	context,
		const uint8_t *	data,
		const size_t	len
	)

Definition at line 176 of file sha1.c.

References SHA1_CTX::buffer, SHA1_CTX::count, SHA1_Transform(), and SHA1_CTX::state.

Referenced by sat_chksum_add(), and sat_SHA1_Final().

void sat_SHA1_Final	(	SHA1_CTX *	context,
		uint8_t	digest[SHA1_DIGEST_SIZE]
	)

Definition at line 205 of file sha1.c.

References SHA1_CTX::buffer, SHA1_CTX::count, sat_SHA1_Update(), and SHA1_CTX::state.

Referenced by sat_chksum_get().