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15.11

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Igor Pavlov
2015-11-19 00:00:00 +00:00
committed by Kornel Lesiński
parent 7c8a265a15
commit e24f7fba53
70 changed files with 701 additions and 332 deletions
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37
C/Sha256.c
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@@ -1,5 +1,5 @@
/* Crypto/Sha256.c -- SHA-256 Hash
2015-03-02 : Igor Pavlov : Public domain
2015-11-14 : Igor Pavlov : Public domain
This code is based on public domain code from Wei Dai's Crypto++ library. */
#include "Precomp.h"
@@ -113,10 +113,26 @@ static void Sha256_WriteByteBlock(CSha256 *p)
{
UInt32 W[16];
unsigned j;
UInt32 *state = p->state;
UInt32 *state;
#ifdef _SHA256_UNROLL2
UInt32 a,b,c,d,e,f,g,h;
#else
UInt32 T[8];
#endif
for (j = 0; j < 16; j += 4)
{
const Byte *ccc = p->buffer + j * 4;
W[j ] = GetBe32(ccc);
W[j + 1] = GetBe32(ccc + 4);
W[j + 2] = GetBe32(ccc + 8);
W[j + 3] = GetBe32(ccc + 12);
}
state = p->state;
#ifdef _SHA256_UNROLL2
a = state[0];
b = state[1];
c = state[2];
@@ -126,17 +142,10 @@ static void Sha256_WriteByteBlock(CSha256 *p)
g = state[6];
h = state[7];
#else
UInt32 T[8];
for (j = 0; j < 8; j++)
T[j] = state[j];
#endif
for (j = 0; j < 16; j += 2)
{
W[j ] = GetBe32(p->buffer + j * 4);
W[j + 1] = GetBe32(p->buffer + j * 4 + 4);
}
for (j = 0; j < 64; j += 16)
{
RX_16
@@ -226,11 +235,13 @@ void Sha256_Final(CSha256 *p, Byte *digest)
Sha256_WriteByteBlock(p);
for (i = 0; i < 8; i++)
for (i = 0; i < 8; i += 2)
{
UInt32 v = p->state[i];
SetBe32(digest, v);
digest += 4;
UInt32 v0 = p->state[i];
UInt32 v1 = p->state[i + 1];
SetBe32(digest , v0);
SetBe32(digest + 4, v1);
digest += 8;
}
Sha256_Init(p);