sha256.c File Reference

#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include "decls.h"
#include "sha256.h"

Go to the source code of this file.

Macros
#define	AARU_LOCAL   static
#define	ROTR32(x, n)
#define	Ch(x, y, z)
#define	Maj(x, y, z)
#define	SIGMA0(x)
#define	SIGMA1(x)
#define	sigma0(x)
#define	sigma1(x)

Functions
static void	sha256_transform (uint32_t state[8], const uint8_t block[64])
void	aaruf_sha256_init (sha256_ctx *ctx)
void	aaruf_sha256_update (sha256_ctx *ctx, const void *data_ptr, unsigned long len)
void	aaruf_sha256_final (sha256_ctx *ctx, unsigned char *out)
void	aaruf_sha256_buffer (const void *data, unsigned long size, unsigned char *result)

Variables
static const uint32_t	K [64]

Macro Definition Documentation

AARU_LOCAL

#define AARU_LOCAL   static

Definition at line 15 of file sha256.c.

Ch

#define Ch	(		x,
			y,
			z )

Value:

(((x) & (y)) ^ (~(x) & (z)))

Definition at line 24 of file sha256.c.

Referenced by sha256_transform().

Maj

#define Maj	(		x,
			y,
			z )

Value:

(((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z)))

Definition at line 25 of file sha256.c.

Referenced by sha256_transform().

ROTR32

#define ROTR32	(		x,
			n )

Value:

(((x) >> (n)) | ((x) << (32 - (n))))

Definition at line 21 of file sha256.c.

SIGMA0

#define SIGMA0

(

x

)

Value:

(ROTR32((x), 2) ^ ROTR32((x), 13) ^ ROTR32((x), 22))

Definition at line 26 of file sha256.c.

Referenced by sha256_transform().

sigma0

#define sigma0

(

x

)

Value:

(ROTR32((x), 7) ^ ROTR32((x), 18) ^ ((x) >> 3))

Definition at line 28 of file sha256.c.

Referenced by sha256_transform().

SIGMA1

#define SIGMA1

(

x

)

Value:

(ROTR32((x), 6) ^ ROTR32((x), 11) ^ ROTR32((x), 25))

Definition at line 27 of file sha256.c.

Referenced by sha256_transform().

sigma1

#define sigma1

(

x

)

Value:

(ROTR32((x), 17) ^ ROTR32((x), 19) ^ ((x) >> 10))

Definition at line 29 of file sha256.c.

Referenced by sha256_transform().

Function Documentation

aaruf_sha256_buffer()

void aaruf_sha256_buffer	(	const void *	data,
		unsigned long	size,
		unsigned char *	result )

Definition at line 141 of file sha256.c.

References AARU_CALL, AARU_EXPORT, aaruf_sha256_final(), aaruf_sha256_init(), and aaruf_sha256_update().

aaruf_sha256_final()

void aaruf_sha256_final	(	sha256_ctx *	ctx,
		unsigned char *	out )

Definition at line 115 of file sha256.c.

References AARU_CALL, AARU_EXPORT, aaruf_sha256_update(), sha256_ctx::bitcount, sha256_ctx::buffer, and sha256_ctx::state.

Referenced by aaruf_sha256_buffer(), and write_checksum_block().

aaruf_sha256_init()

void aaruf_sha256_init

(

sha256_ctx *

ctx

)

Definition at line 76 of file sha256.c.

References AARU_CALL, AARU_EXPORT, sha256_ctx::bitcount, sha256_ctx::buffer, and sha256_ctx::state.

Referenced by aaruf_create(), and aaruf_sha256_buffer().

aaruf_sha256_update()

void aaruf_sha256_update	(	sha256_ctx *	ctx,
		const void *	data_ptr,
		unsigned long	len )

Definition at line 90 of file sha256.c.

References AARU_CALL, AARU_EXPORT, sha256_ctx::bitcount, sha256_ctx::buffer, sha256_transform(), and sha256_ctx::state.

Referenced by aaruf_sha256_buffer(), aaruf_sha256_final(), aaruf_write_sector(), and aaruf_write_sector_long().

sha256_transform()

void sha256_transform ( uint32_t state[8], const uint8_t block[64] )

static

Definition at line 41 of file sha256.c.

References AARU_LOCAL, Ch, K, Maj, SIGMA0, sigma0, SIGMA1, and sigma1.

Referenced by aaruf_sha256_update().

Variable Documentation

K

const uint32_t K[64]

static

Initial value:

= {
    0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
    0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
    0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
    0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
    0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
    0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
    0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
    0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2}

Definition at line 31 of file sha256.c.

Referenced by sha256_transform().