jeltz/hostap
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

Use shared SHA-256 define for the block size

Browse source 
Signed-hostap: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2011-11-13 21:43:31 +02:00
parent 7f6400ed19
commit 6ec64015f5
1 changed files with 12 additions and 11 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

23
src/crypto/sha256-internal.c
View file

@ -1,6 +1,6 @@
/*
* SHA-256 hash implementation and interface functions
* Copyright (c) 2003-2007, Jouni Malinen <j@w1.fi>
* Copyright (c) 2003-2011, Jouni Malinen <j@w1.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@ -18,10 +18,12 @@
#include "sha256.h"
#include "crypto.h"
#define SHA256_BLOCK_SIZE 64
struct sha256_state {
u64 length;
u32 state[8], curlen;
u8 buf[64];
u8 buf[SHA256_BLOCK_SIZE];
};
static void sha256_init(struct sha256_state *md);
@ -162,28 +164,27 @@ static int sha256_process(struct sha256_state *md, const unsigned char *in,
unsigned long inlen)
{
unsigned long n;
#define block_size 64
if (md->curlen >= sizeof(md->buf))
return -1;
while (inlen > 0) {
if (md->curlen == 0 && inlen >= block_size) {
if (md->curlen == 0 && inlen >= SHA256_BLOCK_SIZE) {
if (sha256_compress(md, (unsigned char *) in) < 0)
return -1;
md->length += block_size * 8;
in += block_size;
inlen -= block_size;
md->length += SHA256_BLOCK_SIZE * 8;
in += SHA256_BLOCK_SIZE;
inlen -= SHA256_BLOCK_SIZE;
} else {
n = MIN(inlen, (block_size - md->curlen));
n = MIN(inlen, (SHA256_BLOCK_SIZE - md->curlen));
os_memcpy(md->buf + md->curlen, in, n);
md->curlen += n;
in += n;
inlen -= n;
if (md->curlen == block_size) {
if (md->curlen == SHA256_BLOCK_SIZE) {
if (sha256_compress(md, md->buf) < 0)
return -1;
md->length += 8 * block_size;
md->length += 8 * SHA256_BLOCK_SIZE;
md->curlen = 0;
}
}
@ -217,7 +218,7 @@ static int sha256_done(struct sha256_state *md, unsigned char *out)
* encoding like normal.
*/
if (md->curlen > 56) {
while (md->curlen < 64) {
while (md->curlen < SHA256_BLOCK_SIZE) {
md->buf[md->curlen++] = (unsigned char) 0;
}
sha256_compress(md, md->buf);