wrbuf_sha1.c File Reference

Implements SHA1 creation over WRBUF. More...

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <yaz/wrbuf.h>
#include <stdint.h>

Go to the source code of this file.

Data Structures
struct	SHA1_CTX

Macros
#define	SHA1HANDSOFF
#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
static void	SHA1Transform (uint32_t state[5], const unsigned char buffer[64])
static void	SHA1Init (SHA1_CTX *context)
static void	SHA1Update (SHA1_CTX *context, const unsigned char *data, uint32_t len)
static void	SHA1Final (unsigned char digest[20], SHA1_CTX *context)
int	wrbuf_sha1_write (WRBUF b, const char *cp, size_t sz, int hexit)
	writes SHA1 text to WRBUF
int	wrbuf_sha1_puts (WRBUF b, const char *cp, int hexit)
	writes SHA1 text to WRBUF

Detailed Description

Implements SHA1 creation over WRBUF.

Definition in file wrbuf_sha1.c.

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 54 of file wrbuf_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 51 of file wrbuf_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 58 of file wrbuf_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 59 of file wrbuf_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 60 of file wrbuf_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 61 of file wrbuf_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 62 of file wrbuf_sha1.c.

rol

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

Definition at line 44 of file wrbuf_sha1.c.

SHA1HANDSOFF

#define SHA1HANDSOFF

Definition at line 29 of file wrbuf_sha1.c.

Function Documentation

SHA1Final()

static void SHA1Final ( unsigned char  digest[20], SHA1_CTX *  context  )

static

Definition at line 167 of file wrbuf_sha1.c.

References SHA1_CTX::count, SHA1Update(), and SHA1_CTX::state.

Referenced by wrbuf_sha1_write().

SHA1Init()

static void SHA1Init ( SHA1_CTX *  context )

static

Definition at line 128 of file wrbuf_sha1.c.

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

Referenced by wrbuf_sha1_write().

SHA1Transform()

static void SHA1Transform ( uint32_t  state[5], const unsigned char  buffer[64]  )

static

Definition at line 67 of file wrbuf_sha1.c.

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

Referenced by SHA1Update().

SHA1Update()

static void SHA1Update ( SHA1_CTX *  context, const unsigned char *  data, uint32_t  len  )

static

Definition at line 142 of file wrbuf_sha1.c.

References SHA1_CTX::buffer, SHA1_CTX::count, SHA1Transform(), and SHA1_CTX::state.

Referenced by SHA1Final(), and wrbuf_sha1_write().

wrbuf_sha1_puts()

int wrbuf_sha1_puts	(	WRBUF	b,
		const char *	cp,
		int	hexit
	)

writes SHA1 text to WRBUF

Parameters

b	result
cp	C-string
hexit	1=hex mode; 0=binary

Returns

0 if successful

-1 on error

Definition at line 214 of file wrbuf_sha1.c.

References wrbuf_sha1_write().

Referenced by wrbuf_vary_puts(), and ZOOM_memcached_resultset().

wrbuf_sha1_write()

int wrbuf_sha1_write	(	WRBUF	b,
		const char *	cp,
		size_t	sz,
		int	hexit
	)

writes SHA1 text to WRBUF

Parameters

b	result
cp	char buffer
sz	size of char buffer
hexit	1=hex mode; 0=binary

Returns

0 if successful

-1 on error

Definition at line 194 of file wrbuf_sha1.c.

References SHA1Final(), SHA1Init(), SHA1Update(), wrbuf_printf(), and wrbuf_write().

Referenced by wrbuf_sha1_puts(), and ZOOM_memcached_add().