sha256.c File Reference

#include <openssl/opensslconf.h>
#include <stdlib.h>
#include <string.h>
#include <openssl/crypto.h>
#include <openssl/sha.h>
#include <openssl/opensslv.h>
#include "md32_common.h"

Go to the source code of this file.

Macros
#define	DATA_ORDER_IS_BIG_ENDIAN
#define	HASH_LONG   SHA_LONG
#define	HASH_CTX   SHA256_CTX
#define	HASH_CBLOCK   SHA_CBLOCK
#define	HASH_MAKE_STRING(c, s)
#define	HASH_UPDATE   SHA256_Update
#define	HASH_TRANSFORM   SHA256_Transform
#define	HASH_FINAL   SHA256_Final
#define	HASH_BLOCK_DATA_ORDER   sha256_block_data_order
#define	Sigma0(x)   (ROTATE((x),30) ^ ROTATE((x),19) ^ ROTATE((x),10))
#define	Sigma1(x)   (ROTATE((x),26) ^ ROTATE((x),21) ^ ROTATE((x),7))
#define	sigma0(x)   (ROTATE((x),25) ^ ROTATE((x),14) ^ ((x)>>3))
#define	sigma1(x)   (ROTATE((x),15) ^ ROTATE((x),13) ^ ((x)>>10))
#define	Ch(x, y, z)   (((x) & (y)) ^ ((~(x)) & (z)))
#define	Maj(x, y, z)   (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z)))
#define	ROUND_00_15(i, a, b, c, d, e, f, g, h)
#define	ROUND_16_63(i, a, b, c, d, e, f, g, h, X)

Functions
	fips_md_init_ctx (SHA224, SHA256)
	fips_md_init (SHA256)
unsigned char *	SHA224 (const unsigned char *d, size_t n, unsigned char *md)
unsigned char *	SHA256 (const unsigned char *d, size_t n, unsigned char *md)
int	SHA224_Update (SHA256_CTX *c, const void *data, size_t len)
int	SHA224_Final (unsigned char *md, SHA256_CTX *c)

Variables
const char	SHA256_version [] ="SHA-256" OPENSSL_VERSION_PTEXT

Macro Definition Documentation

#define Ch	(		x,
			y,
			z
	)		(((x) & (y)) ^ ((~(x)) & (z)))

Definition at line 146 of file sha256.c.

#define DATA_ORDER_IS_BIG_ENDIAN

Definition at line 72 of file sha256.c.

#define HASH_BLOCK_DATA_ORDER   sha256_block_data_order

Definition at line 109 of file sha256.c.

#define HASH_CBLOCK   SHA_CBLOCK

Definition at line 76 of file sha256.c.

#define HASH_CTX   SHA256_CTX

Definition at line 75 of file sha256.c.

#define HASH_FINAL   SHA256_Final

Definition at line 108 of file sha256.c.

#define HASH_LONG   SHA_LONG

Definition at line 74 of file sha256.c.

#define HASH_MAKE_STRING	(		c,
			s
	)

Value:

do {    \
    unsigned long ll;       \
    unsigned int  nn;       \
    switch ((c)->md_len)        \
    {   case SHA224_DIGEST_LENGTH:  \
        for (nn=0;nn<SHA224_DIGEST_LENGTH/4;nn++)   \
        {   ll=(c)->h[nn]; HOST_l2c(ll,(s));   }    \
        break;          \
        case SHA256_DIGEST_LENGTH:  \
        for (nn=0;nn<SHA256_DIGEST_LENGTH/4;nn++)   \
        {   ll=(c)->h[nn]; HOST_l2c(ll,(s));   }    \
        break;          \
        default:            \
        if ((c)->md_len > SHA256_DIGEST_LENGTH) \
            return 0;               \
        for (nn=0;nn<(c)->md_len/4;nn++)        \
        {   ll=(c)->h[nn]; HOST_l2c(ll,(s));   }    \
        break;          \
    }               \
    } while (0)

Definition at line 85 of file sha256.c.

#define HASH_TRANSFORM   SHA256_Transform

Definition at line 107 of file sha256.c.

#define HASH_UPDATE   SHA256_Update

Definition at line 106 of file sha256.c.

#define Maj	(		x,
			y,
			z
	)		(((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z)))

Definition at line 147 of file sha256.c.

#define ROUND_00_15	(		i,
			a,
			b,
			c,
			d,
			e,
			f,
			g,
			h
	)

Value:

do {    \
    T1 += h + Sigma1(e) + Ch(e,f,g) + K256[i];  \
    h = Sigma0(a) + Maj(a,b,c);         \
    d += T1;    h += T1;        } while (0)

Definition at line 192 of file sha256.c.

#define ROUND_16_63	(		i,
			a,
			b,
			c,
			d,
			e,
			f,
			g,
			h,
			X
	)

Value:

do {    \
    s0 = X[(i+1)&0x0f]; s0 = sigma0(s0);    \
    s1 = X[(i+14)&0x0f];    s1 = sigma1(s1);    \
    T1 = X[(i)&0x0f] += s0 + s1 + X[(i+9)&0x0f];    \
    ROUND_00_15(i,a,b,c,d,e,f,g,h);     } while (0)

Definition at line 197 of file sha256.c.

#define Sigma0

(

x

)

(ROTATE((x),30) ^ ROTATE((x),19) ^ ROTATE((x),10))

Definition at line 141 of file sha256.c.

#define sigma0

(

x

)

(ROTATE((x),25) ^ ROTATE((x),14) ^ ((x)>>3))

Definition at line 143 of file sha256.c.

#define Sigma1

(

x

)

(ROTATE((x),26) ^ ROTATE((x),21) ^ ROTATE((x),7))

Definition at line 142 of file sha256.c.

#define sigma1

(

x

)

(ROTATE((x),15) ^ ROTATE((x),13) ^ ((x)>>10))

Definition at line 144 of file sha256.c.

Function Documentation

fips_md_init

(

SHA256

)

Definition at line 30 of file sha256.c.

fips_md_init_ctx	(	SHA224	,
		SHA256
	)

Definition at line 19 of file sha256.c.

unsigned char* SHA224	(	const unsigned char *	d,
		size_t	n,
		unsigned char *	md
	)

Definition at line 41 of file sha256.c.

int SHA224_Final	(	unsigned char *	md,
		SHA256_CTX *	c
	)

Definition at line 69 of file sha256.c.

int SHA224_Update	(	SHA256_CTX *	c,
		const void *	data,
		size_t	len
	)

Definition at line 67 of file sha256.c.

unsigned char* SHA256	(	const unsigned char *	d,
		size_t	n,
		unsigned char *	md
	)

Definition at line 54 of file sha256.c.

Variable Documentation

const char SHA256_version[] ="SHA-256" OPENSSL_VERSION_PTEXT

Definition at line 17 of file sha256.c.