sha1.c File Reference

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

Include dependency graph for sha1.c:

Go to the source code of this file.

Macros
#define	BCOUNT   (ctxt->c.b64[0] / 8)
#define	COUNT   (ctxt->count)
#define	F0(b, c, d)   (((b) & (c)) | ((~(b)) & (d)))
#define	F1(b, c, d)   (((b) ^ (c)) ^ (d))
#define	F2(b, c, d)   (((b) & (c)) | ((b) & (d)) | ((c) & (d)))
#define	F3(b, c, d)   (((b) ^ (c)) ^ (d))
#define	H(n)   (ctxt->h.b32[(n)])
#define	K(t)   _K[(t) / 20]
#define	PUTBYTE(x)
#define	PUTPAD(x)
#define	S(n, x)   (((x) << (n)) | ((x) >> (32 - (n))))
#define	W(n)   (ctxt->m.b32[(n)])

Functions
void	sha1_init (struct sha1_ctxt *ctxt)
void	sha1_loop (struct sha1_ctxt *ctxt, const uint8_t *input0, size_t len)
void	sha1_pad (struct sha1_ctxt *ctxt)
void	sha1_result (struct sha1_ctxt *ctxt, uint8_t *digest0)
static void	sha1_step (struct sha1_ctxt *)

Variables
static uint32_t	_K [] = {0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xca62c1d6}

Macro Definition Documentation

BCOUNT

#define BCOUNT   (ctxt->c.b64[0] / 8)

Definition at line 54 of file sha1.c.

COUNT

#define COUNT   (ctxt->count)

Definition at line 53 of file sha1.c.

F0

#define F0	(		b,
			c,
			d
	)		(((b) & (c)) | ((~(b)) & (d)))

Definition at line 45 of file sha1.c.

F1

#define F1	(		b,
			c,
			d
	)		(((b) ^ (c)) ^ (d))

Definition at line 46 of file sha1.c.

F2

#define F2	(		b,
			c,
			d
	)		(((b) & (c)) | ((b) & (d)) | ((c) & (d)))

Definition at line 47 of file sha1.c.

F3

#define F3	(		b,
			c,
			d
	)		(((b) ^ (c)) ^ (d))

Definition at line 48 of file sha1.c.

H

#define H

(

n

)

(ctxt->h.b32[(n)])

Definition at line 52 of file sha1.c.

K

#define K

(

t

)

_K[(t) / 20]

Definition at line 43 of file sha1.c.

PUTBYTE

#define PUTBYTE

(

x

)

Value:

do { \
        ctxt->m.b8[(COUNT % 64)] = (x);         \
        COUNT++;                                \
        COUNT %= 64;                            \
        ctxt->c.b64[0] += 8;                    \
        if (COUNT % 64 == 0)                    \
                sha1_step(ctxt);                \
} while (0)

Definition at line 57 of file sha1.c.

PUTPAD

#define PUTPAD

(

x

)

Value:

do { \
        ctxt->m.b8[(COUNT % 64)] = (x);         \
        COUNT++;                                \
        COUNT %= 64;                            \
        if (COUNT % 64 == 0)                    \
                sha1_step(ctxt);                \
} while (0)

Definition at line 67 of file sha1.c.

S

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

Definition at line 50 of file sha1.c.

W

#define W

(

n

)

(ctxt->m.b32[(n)])

Definition at line 55 of file sha1.c.

Function Documentation

sha1_init()

void sha1_init

(

struct sha1_ctxt *

ctxt

)

Definition at line 224 of file sha1.c.

sha1_loop()

void sha1_loop	(	struct sha1_ctxt *	ctxt,
		const uint8_t *	input0,
		size_t	len
	)

Definition at line 278 of file sha1.c.

sha1_pad()

void sha1_pad

(

struct sha1_ctxt *

ctxt

)

Definition at line 235 of file sha1.c.

sha1_result()

void sha1_result	(	struct sha1_ctxt *	ctxt,
		uint8_t *	digest0
	)

Definition at line 306 of file sha1.c.

sha1_step()

static void sha1_step ( struct sha1_ctxt *  ctxt )

static

Definition at line 79 of file sha1.c.

Variable Documentation

_K

uint32_t _K[] = {0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xca62c1d6}

static

Definition at line 41 of file sha1.c.