dash/blackcoin-more
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Move {Read,Write}{LE,BE}{32,64} to common.h and use builtins if possible

Browse Source
This commit is contained in:
Pieter Wuille
2014-05-03 01:04:18 +02:00
parent a5bc9c0917
commit 7ecd9739d9
5 changed files with 52 additions and 61 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
src/crypto/sha1.cpp
View File

@@ -4,24 +4,12 @@
#include "crypto/sha1.h"
#include "crypto/common.h"
#include <string.h>
// Internal implementation code.
namespace {
/** Read 4 bytes, and interpret them as a 32-bit unsigned big-endian integer. */
uint32_t inline ReadBE32(const unsigned char *data) {
return ((uint32_t)data[0] << 24 | (uint32_t)data[1] << 16 | (uint32_t)data[2] << 8 | (uint32_t)data[3]);
}
/** Write a 32-bit unsigned big-endian integer. */
void inline WriteBE32(unsigned char *data, uint32_t x) {
data[0] = x >> 24;
data[1] = x >> 16;
data[2] = x >> 8;
data[3] = x;
}
/// Internal SHA-1 implementation.
namespace sha1 {
@@ -187,8 +175,7 @@ CSHA1& CSHA1::Write(const unsigned char *data, size_t len) {
void CSHA1::Finalize(unsigned char *hash) {
static const unsigned char pad[64] = {0x80};
unsigned char sizedesc[8];
WriteBE32(sizedesc, bytes >> 29);
WriteBE32(sizedesc+4, bytes << 3);
WriteBE64(sizedesc, bytes << 3);
Write(pad, 1 + ((119 - (bytes % 64)) % 64));
Write(sizedesc, 8);
WriteBE32(hash, s[0]);