sha1.c File Reference

SHA-1 hash. More...

Macros
#define	SHA1HANDSOFF
#define	rol(value, bits)   (((value) << (bits)) | ((value) >> (32 - (bits))))
#define	blk0(i)   (block->l[i] = host_to_be(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);
#define	le_to_be(i)   ((rol((i),24) & 0xFF00FF00) | (rol((i),8) & 0x00FF00FF))

Functions
static uint32_t	host_to_be (uint32_t i)
static void	SHA1_Transform (uint32_t state[5], const uint8_t buffer[64])
void	crypto_SHA1_Init (SHA1_CTX *context)
void	crypto_SHA1_Update (SHA1_CTX *context, const uint8_t *data, const size_t len)
void	crypto_SHA1_Final (SHA1_CTX *context, uint8_t *digest)
void	crypto_SHA1 (const uint8_t *data, size_t len, uint8_t *digest)

Detailed Description

SHA-1 hash.

Macro Definition Documentation

SHA1HANDSOFF

#define SHA1HANDSOFF

rol

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

blk0

#define blk0

(

i

)

(block->l[i] = host_to_be(block->l[i]))

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))

R0

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

R1

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

R2

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

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);

R4

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

le_to_be

#define le_to_be

(

i

)

((rol((i),24) & 0xFF00FF00) | (rol((i),8) & 0x00FF00FF))

Function Documentation

host_to_be()

static uint32_t host_to_be ( uint32_t  i )

static

SHA1_Transform()

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

static

crypto_SHA1_Init()

void crypto_SHA1_Init

(

SHA1_CTX *

context

)

crypto_SHA1_Update()

void crypto_SHA1_Update	(	SHA1_CTX *	context,
		const uint8_t *	data,
		const size_t	len
	)

crypto_SHA1_Final()

void crypto_SHA1_Final	(	SHA1_CTX *	context,
		uint8_t *	digest
	)

crypto_SHA1()

void crypto_SHA1	(	const uint8_t *	data,
		size_t	len,
		uint8_t *	digest
	)