sha1.c File Reference

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

Include dependency graph for sha1.c:

Macros
#define	BRG_LITTLE_ENDIAN   1234 /* byte 0 is least significant (i386) */
#define	BRG_BIG_ENDIAN   4321 /* byte 0 is most significant (mc68k) */
#define	PLATFORM_BYTE_ORDER   BRG_LITTLE_ENDIAN
#define	rotl32(x, n)   (((x) << n) | ((x) >> (32 - n)))
#define	rotr32(x, n)   (((x) >> n) | ((x) << (32 - n)))
#define	bswap_32(x)   ((rotr32((x), 24) & 0x00ff00ff) | (rotr32((x), 8) & 0xff00ff00))
#define	SWAP_BYTES
#define	bsw_32(p, n)   { int _i = (n); while(_i--) ((sha1_32t*)p)[_i] = bswap_32(((sha1_32t*)p)[_i]); }
#define	SHA1_MASK   (SHA1_BLOCK_SIZE - 1)
#define	ch(x, y, z)   ((z) ^ ((x) & ((y) ^ (z))))
#define	parity(x, y, z)   ((x) ^ (y) ^ (z))
#define	maj(x, y, z)   (((x) & (y)) | ((z) & ((x) ^ (y))))
#define	q(v, n)   v##n
#define	one_cycle(v, a, b, c, d, e, f, k, h)
#define	five_cycle(v, f, k, i)
#define	hf(i)   w[i]
#define	hf(i)

Functions
void	sha1_compile (sha1_ctx ctx[1])
void	sha1_begin (sha1_ctx ctx[1])
void	sha1_hash (const unsigned char data[], unsigned long len, sha1_ctx ctx[1])
void	sha1_end (unsigned char hval[], sha1_ctx ctx[1])
void	sha1 (unsigned char hval[], const unsigned char data[], unsigned long len)

Macro Definition Documentation

#define BRG_BIG_ENDIAN   4321 /* byte 0 is most significant (mc68k) */

#define BRG_LITTLE_ENDIAN   1234 /* byte 0 is least significant (i386) */

#define bsw_32	(		p,
			n
	)		{ int _i = (n); while(_i--) ((sha1_32t*)p)[_i] = bswap_32(((sha1_32t*)p)[_i]); }

Referenced by sha1_end(), and sha1_hash().

#define bswap_32

(

x

)

((rotr32((x), 24) & 0x00ff00ff) | (rotr32((x), 8) & 0xff00ff00))

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

Referenced by getDebugChar(), process_args(), and sha1_compile().

#define five_cycle	(		v,
			f,
			k,
			i
	)

Value:

one_cycle(v, 0,1,2,3,4, f,k,hf(i  ));   \
    one_cycle(v, 4,0,1,2,3, f,k,hf(i+1));   \
    one_cycle(v, 3,4,0,1,2, f,k,hf(i+2));   \
    one_cycle(v, 2,3,4,0,1, f,k,hf(i+3));   \
    one_cycle(v, 1,2,3,4,0, f,k,hf(i+4))

Referenced by sha1_compile().

#define hf

(

i

)

w[i]

Referenced by sha1_compile().

#define hf

(

i

)

Value:

(w[(i) & 15] = rotl32(                    \
                 w[((i) + 13) & 15] ^ w[((i) + 8) & 15] \
               ^ w[((i) +  2) & 15] ^ w[(i) & 15], 1))

#define maj	(		x,
			y,
			z
	)		(((x) & (y)) | ((z) & ((x) ^ (y))))

Referenced by sha1_compile().

#define one_cycle	(		v,
			a,
			b,
			c,
			d,
			e,
			f,
			k,
			h
	)

Value:

q(v,e) += rotr32(q(v,a),27) +               \
              f(q(v,b),q(v,c),q(v,d)) + k + h;  \
    q(v,b)  = rotr32(q(v,b), 2)

Referenced by sha1_compile().

#define parity	(		x,
			y,
			z
	)		((x) ^ (y) ^ (z))

Referenced by sha1_compile().

#define PLATFORM_BYTE_ORDER   BRG_LITTLE_ENDIAN

#define q	(		v,
			n
	)		v##n

#define rotl32	(		x,
			n
	)		(((x) << n) | ((x) >> (32 - n)))

#define rotr32	(		x,
			n
	)		(((x) >> n) | ((x) << (32 - n)))

#define SHA1_MASK   (SHA1_BLOCK_SIZE - 1)

Referenced by sha1_end(), and sha1_hash().

#define SWAP_BYTES

Function Documentation

void sha1	(	unsigned char	hval[],
		const unsigned char	data[],
		unsigned long	len
	)

References sha1_begin(), sha1_end(), and sha1_hash().

Referenced by load_mapfile(), psp_export_func_hash(), and psp_export_var_hash().

void sha1_begin

(

sha1_ctx

ctx[1]

)

References sha1_ctx::count, and sha1_ctx::hash.

Referenced by sha1().

void sha1_compile

(

sha1_ctx

ctx[1]

)

References ch, five_cycle, sha1_ctx::hash, hf, maj, memcpy(), one_cycle, parity, v0, v1, w, and sha1_ctx::wbuf.

Referenced by sha1_end(), and sha1_hash().

void sha1_end	(	unsigned char	hval[],
		sha1_ctx	ctx[1]
	)

References bsw_32, sha1_ctx::count, sha1_ctx::hash, i, SHA1_BLOCK_SIZE, sha1_compile(), SHA1_DIGEST_SIZE, SHA1_MASK, and sha1_ctx::wbuf.

Referenced by sha1().

void sha1_hash	(	const unsigned char	data[],
		unsigned long	len,
		sha1_ctx	ctx[1]
	)

References bsw_32, sha1_ctx::count, memcpy(), SHA1_BLOCK_SIZE, sha1_compile(), SHA1_MASK, sp, and sha1_ctx::wbuf.

Referenced by sha1().