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hashcat/OpenCL/inc_hash_md4.cl

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/**
* Author......: See docs/credits.txt
* License.....: MIT
*/
#include "inc_vendor.h"
#include "inc_types.h"
#include "inc_platform.h"
#include "inc_common.h"
#include "inc_hash_md4.h"
// important notes on this:
// input buf unused bytes needs to be set to zero
// input buf needs to be in algorithm native byte order (md4 = LE, sha1 = BE, etc)
// input buf needs to be 64 byte aligned when using md4_update()
DECLSPEC void md4_transform (const u32 *w0, const u32 *w1, const u32 *w2, const u32 *w3, u32 *digest)
{
u32 a = digest[0];
u32 b = digest[1];
u32 c = digest[2];
u32 d = digest[3];
MD4_STEP_S (MD4_Fo, a, b, c, d, w0[0], MD4C00, MD4S00);
MD4_STEP_S (MD4_Fo, d, a, b, c, w0[1], MD4C00, MD4S01);
MD4_STEP_S (MD4_Fo, c, d, a, b, w0[2], MD4C00, MD4S02);
MD4_STEP_S (MD4_Fo, b, c, d, a, w0[3], MD4C00, MD4S03);
MD4_STEP_S (MD4_Fo, a, b, c, d, w1[0], MD4C00, MD4S00);
MD4_STEP_S (MD4_Fo, d, a, b, c, w1[1], MD4C00, MD4S01);
MD4_STEP_S (MD4_Fo, c, d, a, b, w1[2], MD4C00, MD4S02);
MD4_STEP_S (MD4_Fo, b, c, d, a, w1[3], MD4C00, MD4S03);
MD4_STEP_S (MD4_Fo, a, b, c, d, w2[0], MD4C00, MD4S00);
MD4_STEP_S (MD4_Fo, d, a, b, c, w2[1], MD4C00, MD4S01);
MD4_STEP_S (MD4_Fo, c, d, a, b, w2[2], MD4C00, MD4S02);
MD4_STEP_S (MD4_Fo, b, c, d, a, w2[3], MD4C00, MD4S03);
MD4_STEP_S (MD4_Fo, a, b, c, d, w3[0], MD4C00, MD4S00);
MD4_STEP_S (MD4_Fo, d, a, b, c, w3[1], MD4C00, MD4S01);
MD4_STEP_S (MD4_Fo, c, d, a, b, w3[2], MD4C00, MD4S02);
MD4_STEP_S (MD4_Fo, b, c, d, a, w3[3], MD4C00, MD4S03);
MD4_STEP_S (MD4_Go, a, b, c, d, w0[0], MD4C01, MD4S10);
MD4_STEP_S (MD4_Go, d, a, b, c, w1[0], MD4C01, MD4S11);
MD4_STEP_S (MD4_Go, c, d, a, b, w2[0], MD4C01, MD4S12);
MD4_STEP_S (MD4_Go, b, c, d, a, w3[0], MD4C01, MD4S13);
MD4_STEP_S (MD4_Go, a, b, c, d, w0[1], MD4C01, MD4S10);
MD4_STEP_S (MD4_Go, d, a, b, c, w1[1], MD4C01, MD4S11);
MD4_STEP_S (MD4_Go, c, d, a, b, w2[1], MD4C01, MD4S12);
MD4_STEP_S (MD4_Go, b, c, d, a, w3[1], MD4C01, MD4S13);
MD4_STEP_S (MD4_Go, a, b, c, d, w0[2], MD4C01, MD4S10);
MD4_STEP_S (MD4_Go, d, a, b, c, w1[2], MD4C01, MD4S11);
MD4_STEP_S (MD4_Go, c, d, a, b, w2[2], MD4C01, MD4S12);
MD4_STEP_S (MD4_Go, b, c, d, a, w3[2], MD4C01, MD4S13);
MD4_STEP_S (MD4_Go, a, b, c, d, w0[3], MD4C01, MD4S10);
MD4_STEP_S (MD4_Go, d, a, b, c, w1[3], MD4C01, MD4S11);
MD4_STEP_S (MD4_Go, c, d, a, b, w2[3], MD4C01, MD4S12);
MD4_STEP_S (MD4_Go, b, c, d, a, w3[3], MD4C01, MD4S13);
MD4_STEP_S (MD4_H , a, b, c, d, w0[0], MD4C02, MD4S20);
MD4_STEP_S (MD4_H , d, a, b, c, w2[0], MD4C02, MD4S21);
MD4_STEP_S (MD4_H , c, d, a, b, w1[0], MD4C02, MD4S22);
MD4_STEP_S (MD4_H , b, c, d, a, w3[0], MD4C02, MD4S23);
MD4_STEP_S (MD4_H , a, b, c, d, w0[2], MD4C02, MD4S20);
MD4_STEP_S (MD4_H , d, a, b, c, w2[2], MD4C02, MD4S21);
MD4_STEP_S (MD4_H , c, d, a, b, w1[2], MD4C02, MD4S22);
MD4_STEP_S (MD4_H , b, c, d, a, w3[2], MD4C02, MD4S23);
MD4_STEP_S (MD4_H , a, b, c, d, w0[1], MD4C02, MD4S20);
MD4_STEP_S (MD4_H , d, a, b, c, w2[1], MD4C02, MD4S21);
MD4_STEP_S (MD4_H , c, d, a, b, w1[1], MD4C02, MD4S22);
MD4_STEP_S (MD4_H , b, c, d, a, w3[1], MD4C02, MD4S23);
MD4_STEP_S (MD4_H , a, b, c, d, w0[3], MD4C02, MD4S20);
MD4_STEP_S (MD4_H , d, a, b, c, w2[3], MD4C02, MD4S21);
MD4_STEP_S (MD4_H , c, d, a, b, w1[3], MD4C02, MD4S22);
MD4_STEP_S (MD4_H , b, c, d, a, w3[3], MD4C02, MD4S23);
digest[0] += a;
digest[1] += b;
digest[2] += c;
digest[3] += d;
}
DECLSPEC void md4_init (md4_ctx_t *ctx)
{
ctx->h[0] = MD4M_A;
ctx->h[1] = MD4M_B;
ctx->h[2] = MD4M_C;
ctx->h[3] = MD4M_D;
ctx->w0[0] = 0;
ctx->w0[1] = 0;
ctx->w0[2] = 0;
ctx->w0[3] = 0;
ctx->w1[0] = 0;
ctx->w1[1] = 0;
ctx->w1[2] = 0;
ctx->w1[3] = 0;
ctx->w2[0] = 0;
ctx->w2[1] = 0;
ctx->w2[2] = 0;
ctx->w2[3] = 0;
ctx->w3[0] = 0;
ctx->w3[1] = 0;
ctx->w3[2] = 0;
ctx->w3[3] = 0;
ctx->len = 0;
}
DECLSPEC void md4_update_64 (md4_ctx_t *ctx, u32 *w0, u32 *w1, u32 *w2, u32 *w3, const int len)
{
if (len == 0) return;
const int pos = ctx->len & 63;
ctx->len += len;
if (pos == 0)
{
ctx->w0[0] = w0[0];
ctx->w0[1] = w0[1];
ctx->w0[2] = w0[2];
ctx->w0[3] = w0[3];
ctx->w1[0] = w1[0];
ctx->w1[1] = w1[1];
ctx->w1[2] = w1[2];
ctx->w1[3] = w1[3];
ctx->w2[0] = w2[0];
ctx->w2[1] = w2[1];
ctx->w2[2] = w2[2];
ctx->w2[3] = w2[3];
ctx->w3[0] = w3[0];
ctx->w3[1] = w3[1];
ctx->w3[2] = w3[2];
ctx->w3[3] = w3[3];
if (len == 64)
{
md4_transform (ctx->w0, ctx->w1, ctx->w2, ctx->w3, ctx->h);
ctx->w0[0] = 0;
ctx->w0[1] = 0;
ctx->w0[2] = 0;
ctx->w0[3] = 0;
ctx->w1[0] = 0;
ctx->w1[1] = 0;
ctx->w1[2] = 0;
ctx->w1[3] = 0;
ctx->w2[0] = 0;
ctx->w2[1] = 0;
ctx->w2[2] = 0;
ctx->w2[3] = 0;
ctx->w3[0] = 0;
ctx->w3[1] = 0;
ctx->w3[2] = 0;
ctx->w3[3] = 0;
}
}
else
{
if ((pos + len) < 64)
{
switch_buffer_by_offset_le_S (w0, w1, w2, w3, pos);
ctx->w0[0] |= w0[0];
ctx->w0[1] |= w0[1];
ctx->w0[2] |= w0[2];
ctx->w0[3] |= w0[3];
ctx->w1[0] |= w1[0];
ctx->w1[1] |= w1[1];
ctx->w1[2] |= w1[2];
ctx->w1[3] |= w1[3];
ctx->w2[0] |= w2[0];
ctx->w2[1] |= w2[1];
ctx->w2[2] |= w2[2];
ctx->w2[3] |= w2[3];
ctx->w3[0] |= w3[0];
ctx->w3[1] |= w3[1];
ctx->w3[2] |= w3[2];
ctx->w3[3] |= w3[3];
}
else
{
u32 c0[4] = { 0 };
u32 c1[4] = { 0 };
u32 c2[4] = { 0 };
u32 c3[4] = { 0 };
switch_buffer_by_offset_carry_le_S (w0, w1, w2, w3, c0, c1, c2, c3, pos);
ctx->w0[0] |= w0[0];
ctx->w0[1] |= w0[1];
ctx->w0[2] |= w0[2];
ctx->w0[3] |= w0[3];
ctx->w1[0] |= w1[0];
ctx->w1[1] |= w1[1];
ctx->w1[2] |= w1[2];
ctx->w1[3] |= w1[3];
ctx->w2[0] |= w2[0];
ctx->w2[1] |= w2[1];
ctx->w2[2] |= w2[2];
ctx->w2[3] |= w2[3];
ctx->w3[0] |= w3[0];
ctx->w3[1] |= w3[1];
ctx->w3[2] |= w3[2];
ctx->w3[3] |= w3[3];
md4_transform (ctx->w0, ctx->w1, ctx->w2, ctx->w3, ctx->h);
ctx->w0[0] = c0[0];
ctx->w0[1] = c0[1];
ctx->w0[2] = c0[2];
ctx->w0[3] = c0[3];
ctx->w1[0] = c1[0];
ctx->w1[1] = c1[1];
ctx->w1[2] = c1[2];
ctx->w1[3] = c1[3];
ctx->w2[0] = c2[0];
ctx->w2[1] = c2[1];
ctx->w2[2] = c2[2];
ctx->w2[3] = c2[3];
ctx->w3[0] = c3[0];
ctx->w3[1] = c3[1];
ctx->w3[2] = c3[2];
ctx->w3[3] = c3[3];
}
}
}
DECLSPEC void md4_update (md4_ctx_t *ctx, const u32 *w, const int len)
{
u32 w0[4];
u32 w1[4];
u32 w2[4];
u32 w3[4];
int pos1;
int pos4;
for (pos1 = 0, pos4 = 0; pos1 < len - 64; pos1 += 64, pos4 += 16)
{
w0[0] = w[pos4 + 0];
w0[1] = w[pos4 + 1];
w0[2] = w[pos4 + 2];
w0[3] = w[pos4 + 3];
w1[0] = w[pos4 + 4];
w1[1] = w[pos4 + 5];
w1[2] = w[pos4 + 6];
w1[3] = w[pos4 + 7];
w2[0] = w[pos4 + 8];
w2[1] = w[pos4 + 9];
w2[2] = w[pos4 + 10];
w2[3] = w[pos4 + 11];
w3[0] = w[pos4 + 12];
w3[1] = w[pos4 + 13];
w3[2] = w[pos4 + 14];
w3[3] = w[pos4 + 15];
md4_update_64 (ctx, w0, w1, w2, w3, 64);
}
w0[0] = w[pos4 + 0];
w0[1] = w[pos4 + 1];
w0[2] = w[pos4 + 2];
w0[3] = w[pos4 + 3];
w1[0] = w[pos4 + 4];
w1[1] = w[pos4 + 5];
w1[2] = w[pos4 + 6];
w1[3] = w[pos4 + 7];
w2[0] = w[pos4 + 8];
w2[1] = w[pos4 + 9];
w2[2] = w[pos4 + 10];
w2[3] = w[pos4 + 11];
w3[0] = w[pos4 + 12];
w3[1] = w[pos4 + 13];
w3[2] = w[pos4 + 14];
w3[3] = w[pos4 + 15];
md4_update_64 (ctx, w0, w1, w2, w3, len - pos1);
}
DECLSPEC void md4_update_swap (md4_ctx_t *ctx, const u32 *w, const int len)
{
u32 w0[4];
u32 w1[4];
u32 w2[4];
u32 w3[4];
int pos1;
int pos4;
for (pos1 = 0, pos4 = 0; pos1 < len - 64; pos1 += 64, pos4 += 16)
{
w0[0] = w[pos4 + 0];
w0[1] = w[pos4 + 1];
w0[2] = w[pos4 + 2];
w0[3] = w[pos4 + 3];
w1[0] = w[pos4 + 4];
w1[1] = w[pos4 + 5];
w1[2] = w[pos4 + 6];
w1[3] = w[pos4 + 7];
w2[0] = w[pos4 + 8];
w2[1] = w[pos4 + 9];
w2[2] = w[pos4 + 10];
w2[3] = w[pos4 + 11];
w3[0] = w[pos4 + 12];
w3[1] = w[pos4 + 13];
w3[2] = w[pos4 + 14];
w3[3] = w[pos4 + 15];
w0[0] = hc_swap32_S (w0[0]);
w0[1] = hc_swap32_S (w0[1]);
w0[2] = hc_swap32_S (w0[2]);
w0[3] = hc_swap32_S (w0[3]);
w1[0] = hc_swap32_S (w1[0]);
w1[1] = hc_swap32_S (w1[1]);
w1[2] = hc_swap32_S (w1[2]);
w1[3] = hc_swap32_S (w1[3]);
w2[0] = hc_swap32_S (w2[0]);
w2[1] = hc_swap32_S (w2[1]);
w2[2] = hc_swap32_S (w2[2]);
w2[3] = hc_swap32_S (w2[3]);
w3[0] = hc_swap32_S (w3[0]);
w3[1] = hc_swap32_S (w3[1]);
w3[2] = hc_swap32_S (w3[2]);
w3[3] = hc_swap32_S (w3[3]);
md4_update_64 (ctx, w0, w1, w2, w3, 64);
}
w0[0] = w[pos4 + 0];
w0[1] = w[pos4 + 1];
w0[2] = w[pos4 + 2];
w0[3] = w[pos4 + 3];
w1[0] = w[pos4 + 4];
w1[1] = w[pos4 + 5];
w1[2] = w[pos4 + 6];
w1[3] = w[pos4 + 7];
w2[0] = w[pos4 + 8];
w2[1] = w[pos4 + 9];
w2[2] = w[pos4 + 10];
w2[3] = w[pos4 + 11];
w3[0] = w[pos4 + 12];
w3[1] = w[pos4 + 13];
w3[2] = w[pos4 + 14];
w3[3] = w[pos4 + 15];
w0[0] = hc_swap32_S (w0[0]);
w0[1] = hc_swap32_S (w0[1]);
w0[2] = hc_swap32_S (w0[2]);
w0[3] = hc_swap32_S (w0[3]);
w1[0] = hc_swap32_S (w1[0]);
w1[1] = hc_swap32_S (w1[1]);
w1[2] = hc_swap32_S (w1[2]);
w1[3] = hc_swap32_S (w1[3]);
w2[0] = hc_swap32_S (w2[0]);
w2[1] = hc_swap32_S (w2[1]);
w2[2] = hc_swap32_S (w2[2]);
w2[3] = hc_swap32_S (w2[3]);
w3[0] = hc_swap32_S (w3[0]);
w3[1] = hc_swap32_S (w3[1]);
w3[2] = hc_swap32_S (w3[2]);
w3[3] = hc_swap32_S (w3[3]);
md4_update_64 (ctx, w0, w1, w2, w3, len - pos1);
}
DECLSPEC void md4_update_utf16le (md4_ctx_t *ctx, const u32 *w, const int len)
{
if (hc_enc_scan (w, len))
{
hc_enc_t hc_enc;
hc_enc_init (&hc_enc);
while (hc_enc_has_next (&hc_enc, len))
{
u32 enc_buf[16] = { 0 };
const int enc_len = hc_enc_next (&hc_enc, w, len, 256, enc_buf, sizeof (enc_buf));
md4_update_64 (ctx, enc_buf + 0, enc_buf + 4, enc_buf + 8, enc_buf + 12, enc_len);
}
return;
}
u32 w0[4];
u32 w1[4];
u32 w2[4];
u32 w3[4];
int pos1;
int pos4;
for (pos1 = 0, pos4 = 0; pos1 < len - 32; pos1 += 32, pos4 += 8)
{
w0[0] = w[pos4 + 0];
w0[1] = w[pos4 + 1];
w0[2] = w[pos4 + 2];
w0[3] = w[pos4 + 3];
w1[0] = w[pos4 + 4];
w1[1] = w[pos4 + 5];
w1[2] = w[pos4 + 6];
w1[3] = w[pos4 + 7];
make_utf16le_S (w1, w2, w3);
make_utf16le_S (w0, w0, w1);
md4_update_64 (ctx, w0, w1, w2, w3, 32 * 2);
}
w0[0] = w[pos4 + 0];
w0[1] = w[pos4 + 1];
w0[2] = w[pos4 + 2];
w0[3] = w[pos4 + 3];
w1[0] = w[pos4 + 4];
w1[1] = w[pos4 + 5];
w1[2] = w[pos4 + 6];
w1[3] = w[pos4 + 7];
make_utf16le_S (w1, w2, w3);
make_utf16le_S (w0, w0, w1);
md4_update_64 (ctx, w0, w1, w2, w3, (len - pos1) * 2);
}
DECLSPEC void md4_update_utf16le_swap (md4_ctx_t *ctx, const u32 *w, const int len)
{
if (hc_enc_scan (w, len))
{
hc_enc_t hc_enc;
hc_enc_init (&hc_enc);
while (hc_enc_has_next (&hc_enc, len))
{
u32 enc_buf[16] = { 0 };
const int enc_len = hc_enc_next (&hc_enc, w, len, 256, enc_buf, sizeof (enc_buf));
enc_buf[ 0] = hc_swap32_S (enc_buf[ 0]);
enc_buf[ 1] = hc_swap32_S (enc_buf[ 1]);
enc_buf[ 2] = hc_swap32_S (enc_buf[ 2]);
enc_buf[ 3] = hc_swap32_S (enc_buf[ 3]);
enc_buf[ 4] = hc_swap32_S (enc_buf[ 4]);
enc_buf[ 5] = hc_swap32_S (enc_buf[ 5]);
enc_buf[ 6] = hc_swap32_S (enc_buf[ 6]);
enc_buf[ 7] = hc_swap32_S (enc_buf[ 7]);
enc_buf[ 8] = hc_swap32_S (enc_buf[ 8]);
enc_buf[ 9] = hc_swap32_S (enc_buf[ 9]);
enc_buf[10] = hc_swap32_S (enc_buf[10]);
enc_buf[11] = hc_swap32_S (enc_buf[11]);
enc_buf[12] = hc_swap32_S (enc_buf[12]);
enc_buf[13] = hc_swap32_S (enc_buf[13]);
enc_buf[14] = hc_swap32_S (enc_buf[14]);
enc_buf[15] = hc_swap32_S (enc_buf[15]);
md4_update_64 (ctx, enc_buf + 0, enc_buf + 4, enc_buf + 8, enc_buf + 12, enc_len);
}
return;
}
u32 w0[4];
u32 w1[4];
u32 w2[4];
u32 w3[4];
int pos1;
int pos4;
for (pos1 = 0, pos4 = 0; pos1 < len - 32; pos1 += 32, pos4 += 8)
{
w0[0] = w[pos4 + 0];
w0[1] = w[pos4 + 1];
w0[2] = w[pos4 + 2];
w0[3] = w[pos4 + 3];
w1[0] = w[pos4 + 4];
w1[1] = w[pos4 + 5];
w1[2] = w[pos4 + 6];
w1[3] = w[pos4 + 7];
make_utf16le_S (w1, w2, w3);
make_utf16le_S (w0, w0, w1);
w0[0] = hc_swap32_S (w0[0]);
w0[1] = hc_swap32_S (w0[1]);
w0[2] = hc_swap32_S (w0[2]);
w0[3] = hc_swap32_S (w0[3]);
w1[0] = hc_swap32_S (w1[0]);
w1[1] = hc_swap32_S (w1[1]);
w1[2] = hc_swap32_S (w1[2]);
w1[3] = hc_swap32_S (w1[3]);
w2[0] = hc_swap32_S (w2[0]);
w2[1] = hc_swap32_S (w2[1]);
w2[2] = hc_swap32_S (w2[2]);
w2[3] = hc_swap32_S (w2[3]);
w3[0] = hc_swap32_S (w3[0]);
w3[1] = hc_swap32_S (w3[1]);
w3[2] = hc_swap32_S (w3[2]);
w3[3] = hc_swap32_S (w3[3]);
md4_update_64 (ctx, w0, w1, w2, w3, 32 * 2);
}
w0[0] = w[pos4 + 0];
w0[1] = w[pos4 + 1];
w0[2] = w[pos4 + 2];
w0[3] = w[pos4 + 3];
w1[0] = w[pos4 + 4];
w1[1] = w[pos4 + 5];
w1[2] = w[pos4 + 6];
w1[3] = w[pos4 + 7];
make_utf16le_S (w1, w2, w3);
make_utf16le_S (w0, w0, w1);
w0[0] = hc_swap32_S (w0[0]);
w0[1] = hc_swap32_S (w0[1]);
w0[2] = hc_swap32_S (w0[2]);
w0[3] = hc_swap32_S (w0[3]);
w1[0] = hc_swap32_S (w1[0]);
w1[1] = hc_swap32_S (w1[1]);
w1[2] = hc_swap32_S (w1[2]);
w1[3] = hc_swap32_S (w1[3]);
w2[0] = hc_swap32_S (w2[0]);
w2[1] = hc_swap32_S (w2[1]);
w2[2] = hc_swap32_S (w2[2]);
w2[3] = hc_swap32_S (w2[3]);
w3[0] = hc_swap32_S (w3[0]);
w3[1] = hc_swap32_S (w3[1]);
w3[2] = hc_swap32_S (w3[2]);
w3[3] = hc_swap32_S (w3[3]);
md4_update_64 (ctx, w0, w1, w2, w3, (len - pos1) * 2);
}
DECLSPEC void md4_update_global (md4_ctx_t *ctx, GLOBAL_AS const u32 *w, const int len)
{
u32 w0[4];
u32 w1[4];
u32 w2[4];
u32 w3[4];
int pos1;
int pos4;
for (pos1 = 0, pos4 = 0; pos1 < len - 64; pos1 += 64, pos4 += 16)
{
w0[0] = w[pos4 + 0];
w0[1] = w[pos4 + 1];
w0[2] = w[pos4 + 2];
w0[3] = w[pos4 + 3];
w1[0] = w[pos4 + 4];
w1[1] = w[pos4 + 5];
w1[2] = w[pos4 + 6];
w1[3] = w[pos4 + 7];
w2[0] = w[pos4 + 8];
w2[1] = w[pos4 + 9];
w2[2] = w[pos4 + 10];
w2[3] = w[pos4 + 11];
w3[0] = w[pos4 + 12];
w3[1] = w[pos4 + 13];
w3[2] = w[pos4 + 14];
w3[3] = w[pos4 + 15];
md4_update_64 (ctx, w0, w1, w2, w3, 64);
}
w0[0] = w[pos4 + 0];
w0[1] = w[pos4 + 1];
w0[2] = w[pos4 + 2];
w0[3] = w[pos4 + 3];
w1[0] = w[pos4 + 4];
w1[1] = w[pos4 + 5];
w1[2] = w[pos4 + 6];
w1[3] = w[pos4 + 7];
w2[0] = w[pos4 + 8];
w2[1] = w[pos4 + 9];
w2[2] = w[pos4 + 10];
w2[3] = w[pos4 + 11];
w3[0] = w[pos4 + 12];
w3[1] = w[pos4 + 13];
w3[2] = w[pos4 + 14];
w3[3] = w[pos4 + 15];
md4_update_64 (ctx, w0, w1, w2, w3, len - pos1);
}
DECLSPEC void md4_update_global_swap (md4_ctx_t *ctx, GLOBAL_AS const u32 *w, const int len)
{
u32 w0[4];
u32 w1[4];
u32 w2[4];
u32 w3[4];
int pos1;
int pos4;
for (pos1 = 0, pos4 = 0; pos1 < len - 64; pos1 += 64, pos4 += 16)
{
w0[0] = w[pos4 + 0];
w0[1] = w[pos4 + 1];
w0[2] = w[pos4 + 2];
w0[3] = w[pos4 + 3];
w1[0] = w[pos4 + 4];
w1[1] = w[pos4 + 5];
w1[2] = w[pos4 + 6];
w1[3] = w[pos4 + 7];
w2[0] = w[pos4 + 8];
w2[1] = w[pos4 + 9];
w2[2] = w[pos4 + 10];
w2[3] = w[pos4 + 11];
w3[0] = w[pos4 + 12];
w3[1] = w[pos4 + 13];
w3[2] = w[pos4 + 14];
w3[3] = w[pos4 + 15];
w0[0] = hc_swap32_S (w0[0]);
w0[1] = hc_swap32_S (w0[1]);
w0[2] = hc_swap32_S (w0[2]);
w0[3] = hc_swap32_S (w0[3]);
w1[0] = hc_swap32_S (w1[0]);
w1[1] = hc_swap32_S (w1[1]);
w1[2] = hc_swap32_S (w1[2]);
w1[3] = hc_swap32_S (w1[3]);
w2[0] = hc_swap32_S (w2[0]);
w2[1] = hc_swap32_S (w2[1]);
w2[2] = hc_swap32_S (w2[2]);
w2[3] = hc_swap32_S (w2[3]);
w3[0] = hc_swap32_S (w3[0]);
w3[1] = hc_swap32_S (w3[1]);
w3[2] = hc_swap32_S (w3[2]);
w3[3] = hc_swap32_S (w3[3]);
md4_update_64 (ctx, w0, w1, w2, w3, 64);
}
w0[0] = w[pos4 + 0];
w0[1] = w[pos4 + 1];
w0[2] = w[pos4 + 2];
w0[3] = w[pos4 + 3];
w1[0] = w[pos4 + 4];
w1[1] = w[pos4 + 5];
w1[2] = w[pos4 + 6];
w1[3] = w[pos4 + 7];
w2[0] = w[pos4 + 8];
w2[1] = w[pos4 + 9];
w2[2] = w[pos4 + 10];
w2[3] = w[pos4 + 11];
w3[0] = w[pos4 + 12];
w3[1] = w[pos4 + 13];
w3[2] = w[pos4 + 14];
w3[3] = w[pos4 + 15];
w0[0] = hc_swap32_S (w0[0]);
w0[1] = hc_swap32_S (w0[1]);
w0[2] = hc_swap32_S (w0[2]);
w0[3] = hc_swap32_S (w0[3]);
w1[0] = hc_swap32_S (w1[0]);
w1[1] = hc_swap32_S (w1[1]);
w1[2] = hc_swap32_S (w1[2]);
w1[3] = hc_swap32_S (w1[3]);
w2[0] = hc_swap32_S (w2[0]);
w2[1] = hc_swap32_S (w2[1]);
w2[2] = hc_swap32_S (w2[2]);
w2[3] = hc_swap32_S (w2[3]);
w3[0] = hc_swap32_S (w3[0]);
w3[1] = hc_swap32_S (w3[1]);
w3[2] = hc_swap32_S (w3[2]);
w3[3] = hc_swap32_S (w3[3]);
md4_update_64 (ctx, w0, w1, w2, w3, len - pos1);
}
DECLSPEC void md4_update_global_utf16le (md4_ctx_t *ctx, GLOBAL_AS const u32 *w, const int len)
{
if (hc_enc_scan_global (w, len))
{
hc_enc_t hc_enc;
hc_enc_init (&hc_enc);
while (hc_enc_has_next (&hc_enc, len))
{
u32 enc_buf[16] = { 0 };
const int enc_len = hc_enc_next_global (&hc_enc, w, len, 256, enc_buf, sizeof (enc_buf));
md4_update_64 (ctx, enc_buf + 0, enc_buf + 4, enc_buf + 8, enc_buf + 12, enc_len);
}
return;
}
u32 w0[4];
u32 w1[4];
u32 w2[4];
u32 w3[4];
int pos1;
int pos4;
for (pos1 = 0, pos4 = 0; pos1 < len - 32; pos1 += 32, pos4 += 8)
{
w0[0] = w[pos4 + 0];
w0[1] = w[pos4 + 1];
w0[2] = w[pos4 + 2];
w0[3] = w[pos4 + 3];
w1[0] = w[pos4 + 4];
w1[1] = w[pos4 + 5];
w1[2] = w[pos4 + 6];
w1[3] = w[pos4 + 7];
make_utf16le_S (w1, w2, w3);
make_utf16le_S (w0, w0, w1);
md4_update_64 (ctx, w0, w1, w2, w3, 32 * 2);
}
w0[0] = w[pos4 + 0];
w0[1] = w[pos4 + 1];
w0[2] = w[pos4 + 2];
w0[3] = w[pos4 + 3];
w1[0] = w[pos4 + 4];
w1[1] = w[pos4 + 5];
w1[2] = w[pos4 + 6];
w1[3] = w[pos4 + 7];
make_utf16le_S (w1, w2, w3);
make_utf16le_S (w0, w0, w1);
md4_update_64 (ctx, w0, w1, w2, w3, (len - pos1) * 2);
}
DECLSPEC void md4_update_global_utf16le_swap (md4_ctx_t *ctx, GLOBAL_AS const u32 *w, const int len)
{
if (hc_enc_scan_global (w, len))
{
hc_enc_t hc_enc;
hc_enc_init (&hc_enc);
while (hc_enc_has_next (&hc_enc, len))
{
u32 enc_buf[16] = { 0 };
const int enc_len = hc_enc_next_global (&hc_enc, w, len, 256, enc_buf, sizeof (enc_buf));
enc_buf[ 0] = hc_swap32_S (enc_buf[ 0]);
enc_buf[ 1] = hc_swap32_S (enc_buf[ 1]);
enc_buf[ 2] = hc_swap32_S (enc_buf[ 2]);
enc_buf[ 3] = hc_swap32_S (enc_buf[ 3]);
enc_buf[ 4] = hc_swap32_S (enc_buf[ 4]);
enc_buf[ 5] = hc_swap32_S (enc_buf[ 5]);
enc_buf[ 6] = hc_swap32_S (enc_buf[ 6]);
enc_buf[ 7] = hc_swap32_S (enc_buf[ 7]);
enc_buf[ 8] = hc_swap32_S (enc_buf[ 8]);
enc_buf[ 9] = hc_swap32_S (enc_buf[ 9]);
enc_buf[10] = hc_swap32_S (enc_buf[10]);
enc_buf[11] = hc_swap32_S (enc_buf[11]);
enc_buf[12] = hc_swap32_S (enc_buf[12]);
enc_buf[13] = hc_swap32_S (enc_buf[13]);
enc_buf[14] = hc_swap32_S (enc_buf[14]);
enc_buf[15] = hc_swap32_S (enc_buf[15]);
md4_update_64 (ctx, enc_buf + 0, enc_buf + 4, enc_buf + 8, enc_buf + 12, enc_len);
}
return;
}
u32 w0[4];
u32 w1[4];
u32 w2[4];
u32 w3[4];
int pos1;
int pos4;
for (pos1 = 0, pos4 = 0; pos1 < len - 32; pos1 += 32, pos4 += 8)
{
w0[0] = w[pos4 + 0];
w0[1] = w[pos4 + 1];
w0[2] = w[pos4 + 2];
w0[3] = w[pos4 + 3];
w1[0] = w[pos4 + 4];
w1[1] = w[pos4 + 5];
w1[2] = w[pos4 + 6];
w1[3] = w[pos4 + 7];
make_utf16le_S (w1, w2, w3);
make_utf16le_S (w0, w0, w1);
w0[0] = hc_swap32_S (w0[0]);
w0[1] = hc_swap32_S (w0[1]);
w0[2] = hc_swap32_S (w0[2]);
w0[3] = hc_swap32_S (w0[3]);
w1[0] = hc_swap32_S (w1[0]);
w1[1] = hc_swap32_S (w1[1]);
w1[2] = hc_swap32_S (w1[2]);
w1[3] = hc_swap32_S (w1[3]);
w2[0] = hc_swap32_S (w2[0]);
w2[1] = hc_swap32_S (w2[1]);
w2[2] = hc_swap32_S (w2[2]);
w2[3] = hc_swap32_S (w2[3]);
w3[0] = hc_swap32_S (w3[0]);
w3[1] = hc_swap32_S (w3[1]);
w3[2] = hc_swap32_S (w3[2]);
w3[3] = hc_swap32_S (w3[3]);
md4_update_64 (ctx, w0, w1, w2, w3, 32 * 2);
}
w0[0] = w[pos4 + 0];
w0[1] = w[pos4 + 1];
w0[2] = w[pos4 + 2];
w0[3] = w[pos4 + 3];
w1[0] = w[pos4 + 4];
w1[1] = w[pos4 + 5];
w1[2] = w[pos4 + 6];
w1[3] = w[pos4 + 7];
make_utf16le_S (w1, w2, w3);
make_utf16le_S (w0, w0, w1);
w0[0] = hc_swap32_S (w0[0]);
w0[1] = hc_swap32_S (w0[1]);
w0[2] = hc_swap32_S (w0[2]);
w0[3] = hc_swap32_S (w0[3]);
w1[0] = hc_swap32_S (w1[0]);
w1[1] = hc_swap32_S (w1[1]);
w1[2] = hc_swap32_S (w1[2]);
w1[3] = hc_swap32_S (w1[3]);
w2[0] = hc_swap32_S (w2[0]);
w2[1] = hc_swap32_S (w2[1]);
w2[2] = hc_swap32_S (w2[2]);
w2[3] = hc_swap32_S (w2[3]);
w3[0] = hc_swap32_S (w3[0]);
w3[1] = hc_swap32_S (w3[1]);
w3[2] = hc_swap32_S (w3[2]);
w3[3] = hc_swap32_S (w3[3]);
md4_update_64 (ctx, w0, w1, w2, w3, (len - pos1) * 2);
}
DECLSPEC void md4_final (md4_ctx_t *ctx)
{
const int pos = ctx->len & 63;
append_0x80_4x4_S (ctx->w0, ctx->w1, ctx->w2, ctx->w3, pos);
if (pos >= 56)
{
md4_transform (ctx->w0, ctx->w1, ctx->w2, ctx->w3, ctx->h);
ctx->w0[0] = 0;
ctx->w0[1] = 0;
ctx->w0[2] = 0;
ctx->w0[3] = 0;
ctx->w1[0] = 0;
ctx->w1[1] = 0;
ctx->w1[2] = 0;
ctx->w1[3] = 0;
ctx->w2[0] = 0;
ctx->w2[1] = 0;
ctx->w2[2] = 0;
ctx->w2[3] = 0;
ctx->w3[0] = 0;
ctx->w3[1] = 0;
ctx->w3[2] = 0;
ctx->w3[3] = 0;
}
ctx->w3[2] = ctx->len * 8;
ctx->w3[3] = 0;
md4_transform (ctx->w0, ctx->w1, ctx->w2, ctx->w3, ctx->h);
}
// md4_hmac
DECLSPEC void md4_hmac_init_64 (md4_hmac_ctx_t *ctx, const u32 *w0, const u32 *w1, const u32 *w2, const u32 *w3)
{
u32 a0[4];
u32 a1[4];
u32 a2[4];
u32 a3[4];
// ipad
a0[0] = w0[0] ^ 0x36363636;
a0[1] = w0[1] ^ 0x36363636;
a0[2] = w0[2] ^ 0x36363636;
a0[3] = w0[3] ^ 0x36363636;
a1[0] = w1[0] ^ 0x36363636;
a1[1] = w1[1] ^ 0x36363636;
a1[2] = w1[2] ^ 0x36363636;
a1[3] = w1[3] ^ 0x36363636;
a2[0] = w2[0] ^ 0x36363636;
a2[1] = w2[1] ^ 0x36363636;
a2[2] = w2[2] ^ 0x36363636;
a2[3] = w2[3] ^ 0x36363636;
a3[0] = w3[0] ^ 0x36363636;
a3[1] = w3[1] ^ 0x36363636;
a3[2] = w3[2] ^ 0x36363636;
a3[3] = w3[3] ^ 0x36363636;
md4_init (&ctx->ipad);
md4_update_64 (&ctx->ipad, a0, a1, a2, a3, 64);
// opad
u32 b0[4];
u32 b1[4];
u32 b2[4];
u32 b3[4];
b0[0] = w0[0] ^ 0x5c5c5c5c;
b0[1] = w0[1] ^ 0x5c5c5c5c;
b0[2] = w0[2] ^ 0x5c5c5c5c;
b0[3] = w0[3] ^ 0x5c5c5c5c;
b1[0] = w1[0] ^ 0x5c5c5c5c;
b1[1] = w1[1] ^ 0x5c5c5c5c;
b1[2] = w1[2] ^ 0x5c5c5c5c;
b1[3] = w1[3] ^ 0x5c5c5c5c;
b2[0] = w2[0] ^ 0x5c5c5c5c;
b2[1] = w2[1] ^ 0x5c5c5c5c;
b2[2] = w2[2] ^ 0x5c5c5c5c;
b2[3] = w2[3] ^ 0x5c5c5c5c;
b3[0] = w3[0] ^ 0x5c5c5c5c;
b3[1] = w3[1] ^ 0x5c5c5c5c;
b3[2] = w3[2] ^ 0x5c5c5c5c;
b3[3] = w3[3] ^ 0x5c5c5c5c;
md4_init (&ctx->opad);
md4_update_64 (&ctx->opad, b0, b1, b2, b3, 64);
}
DECLSPEC void md4_hmac_init (md4_hmac_ctx_t *ctx, const u32 *w, const int len)
{
u32 w0[4];
u32 w1[4];
u32 w2[4];
u32 w3[4];
if (len > 64)
{
md4_ctx_t tmp;
md4_init (&tmp);
md4_update (&tmp, w, len);
md4_final (&tmp);
w0[0] = tmp.h[0];
w0[1] = tmp.h[1];
w0[2] = tmp.h[2];
w0[3] = tmp.h[3];
w1[0] = 0;
w1[1] = 0;
w1[2] = 0;
w1[3] = 0;
w2[0] = 0;
w2[1] = 0;
w2[2] = 0;
w2[3] = 0;
w3[0] = 0;
w3[1] = 0;
w3[2] = 0;
w3[3] = 0;
}
else
{
w0[0] = w[ 0];
w0[1] = w[ 1];
w0[2] = w[ 2];
w0[3] = w[ 3];
w1[0] = w[ 4];
w1[1] = w[ 5];
w1[2] = w[ 6];
w1[3] = w[ 7];
w2[0] = w[ 8];
w2[1] = w[ 9];
w2[2] = w[10];
w2[3] = w[11];
w3[0] = w[12];
w3[1] = w[13];
w3[2] = w[14];
w3[3] = w[15];
}
md4_hmac_init_64 (ctx, w0, w1, w2, w3);
}
DECLSPEC void md4_hmac_init_swap (md4_hmac_ctx_t *ctx, const u32 *w, const int len)
{
u32 w0[4];
u32 w1[4];
u32 w2[4];
u32 w3[4];
if (len > 64)
{
md4_ctx_t tmp;
md4_init (&tmp);
md4_update_swap (&tmp, w, len);
md4_final (&tmp);
w0[0] = tmp.h[0];
w0[1] = tmp.h[1];
w0[2] = tmp.h[2];
w0[3] = tmp.h[3];
w1[0] = 0;
w1[1] = 0;
w1[2] = 0;
w1[3] = 0;
w2[0] = 0;
w2[1] = 0;
w2[2] = 0;
w2[3] = 0;
w3[0] = 0;
w3[1] = 0;
w3[2] = 0;
w3[3] = 0;
}
else
{
w0[0] = hc_swap32_S (w[ 0]);
w0[1] = hc_swap32_S (w[ 1]);
w0[2] = hc_swap32_S (w[ 2]);
w0[3] = hc_swap32_S (w[ 3]);
w1[0] = hc_swap32_S (w[ 4]);
w1[1] = hc_swap32_S (w[ 5]);
w1[2] = hc_swap32_S (w[ 6]);
w1[3] = hc_swap32_S (w[ 7]);
w2[0] = hc_swap32_S (w[ 8]);
w2[1] = hc_swap32_S (w[ 9]);
w2[2] = hc_swap32_S (w[10]);
w2[3] = hc_swap32_S (w[11]);
w3[0] = hc_swap32_S (w[12]);
w3[1] = hc_swap32_S (w[13]);
w3[2] = hc_swap32_S (w[14]);
w3[3] = hc_swap32_S (w[15]);
}
md4_hmac_init_64 (ctx, w0, w1, w2, w3);
}
DECLSPEC void md4_hmac_init_global (md4_hmac_ctx_t *ctx, GLOBAL_AS const u32 *w, const int len)
{
u32 w0[4];
u32 w1[4];
u32 w2[4];
u32 w3[4];
if (len > 64)
{
md4_ctx_t tmp;
md4_init (&tmp);
md4_update_global (&tmp, w, len);
md4_final (&tmp);
w0[0] = tmp.h[0];
w0[1] = tmp.h[1];
w0[2] = tmp.h[2];
w0[3] = tmp.h[3];
w1[0] = 0;
w1[1] = 0;
w1[2] = 0;
w1[3] = 0;
w2[0] = 0;
w2[1] = 0;
w2[2] = 0;
w2[3] = 0;
w3[0] = 0;
w3[1] = 0;
w3[2] = 0;
w3[3] = 0;
}
else
{
w0[0] = w[ 0];
w0[1] = w[ 1];
w0[2] = w[ 2];
w0[3] = w[ 3];
w1[0] = w[ 4];
w1[1] = w[ 5];
w1[2] = w[ 6];
w1[3] = w[ 7];
w2[0] = w[ 8];
w2[1] = w[ 9];
w2[2] = w[10];
w2[3] = w[11];
w3[0] = w[12];
w3[1] = w[13];
w3[2] = w[14];
w3[3] = w[15];
}
md4_hmac_init_64 (ctx, w0, w1, w2, w3);
}
DECLSPEC void md4_hmac_init_global_swap (md4_hmac_ctx_t *ctx, GLOBAL_AS const u32 *w, const int len)
{
u32 w0[4];
u32 w1[4];
u32 w2[4];
u32 w3[4];
if (len > 64)
{
md4_ctx_t tmp;
md4_init (&tmp);
md4_update_global_swap (&tmp, w, len);
md4_final (&tmp);
w0[0] = tmp.h[0];
w0[1] = tmp.h[1];
w0[2] = tmp.h[2];
w0[3] = tmp.h[3];
w1[0] = 0;
w1[1] = 0;
w1[2] = 0;
w1[3] = 0;
w2[0] = 0;
w2[1] = 0;
w2[2] = 0;
w2[3] = 0;
w3[0] = 0;
w3[1] = 0;
w3[2] = 0;
w3[3] = 0;
}
else
{
w0[0] = hc_swap32_S (w[ 0]);
w0[1] = hc_swap32_S (w[ 1]);
w0[2] = hc_swap32_S (w[ 2]);
w0[3] = hc_swap32_S (w[ 3]);
w1[0] = hc_swap32_S (w[ 4]);
w1[1] = hc_swap32_S (w[ 5]);
w1[2] = hc_swap32_S (w[ 6]);
w1[3] = hc_swap32_S (w[ 7]);
w2[0] = hc_swap32_S (w[ 8]);
w2[1] = hc_swap32_S (w[ 9]);
w2[2] = hc_swap32_S (w[10]);
w2[3] = hc_swap32_S (w[11]);
w3[0] = hc_swap32_S (w[12]);
w3[1] = hc_swap32_S (w[13]);
w3[2] = hc_swap32_S (w[14]);
w3[3] = hc_swap32_S (w[15]);
}
md4_hmac_init_64 (ctx, w0, w1, w2, w3);
}
DECLSPEC void md4_hmac_update_64 (md4_hmac_ctx_t *ctx, u32 *w0, u32 *w1, u32 *w2, u32 *w3, const int len)
{
md4_update_64 (&ctx->ipad, w0, w1, w2, w3, len);
}
DECLSPEC void md4_hmac_update (md4_hmac_ctx_t *ctx, const u32 *w, const int len)
{
md4_update (&ctx->ipad, w, len);
}
DECLSPEC void md4_hmac_update_swap (md4_hmac_ctx_t *ctx, const u32 *w, const int len)
{
md4_update_swap (&ctx->ipad, w, len);
}
DECLSPEC void md4_hmac_update_utf16le (md4_hmac_ctx_t *ctx, const u32 *w, const int len)
{
md4_update_utf16le (&ctx->ipad, w, len);
}
DECLSPEC void md4_hmac_update_utf16le_swap (md4_hmac_ctx_t *ctx, const u32 *w, const int len)
{
md4_update_utf16le_swap (&ctx->ipad, w, len);
}
DECLSPEC void md4_hmac_update_global (md4_hmac_ctx_t *ctx, GLOBAL_AS const u32 *w, const int len)
{
md4_update_global (&ctx->ipad, w, len);
}
DECLSPEC void md4_hmac_update_global_swap (md4_hmac_ctx_t *ctx, GLOBAL_AS const u32 *w, const int len)
{
md4_update_global_swap (&ctx->ipad, w, len);
}
DECLSPEC void md4_hmac_update_global_utf16le (md4_hmac_ctx_t *ctx, GLOBAL_AS const u32 *w, const int len)
{
md4_update_global_utf16le (&ctx->ipad, w, len);
}
DECLSPEC void md4_hmac_update_global_utf16le_swap (md4_hmac_ctx_t *ctx, GLOBAL_AS const u32 *w, const int len)
{
md4_update_global_utf16le_swap (&ctx->ipad, w, len);
}
DECLSPEC void md4_hmac_final (md4_hmac_ctx_t *ctx)
{
md4_final (&ctx->ipad);
ctx->opad.w0[0] = ctx->ipad.h[0];
ctx->opad.w0[1] = ctx->ipad.h[1];
ctx->opad.w0[2] = ctx->ipad.h[2];
ctx->opad.w0[3] = ctx->ipad.h[3];
ctx->opad.w1[0] = 0;
ctx->opad.w1[1] = 0;
ctx->opad.w1[2] = 0;
ctx->opad.w1[3] = 0;
ctx->opad.w2[0] = 0;
ctx->opad.w2[1] = 0;
ctx->opad.w2[2] = 0;
ctx->opad.w2[3] = 0;
ctx->opad.w3[0] = 0;
ctx->opad.w3[1] = 0;
ctx->opad.w3[2] = 0;
ctx->opad.w3[3] = 0;
ctx->opad.len += 16;
md4_final (&ctx->opad);
}
// while input buf can be a vector datatype, the length of the different elements can not
DECLSPEC void md4_transform_vector (const u32x *w0, const u32x *w1, const u32x *w2, const u32x *w3, u32x *digest)
{
u32x a = digest[0];
u32x b = digest[1];
u32x c = digest[2];
u32x d = digest[3];
MD4_STEP (MD4_Fo, a, b, c, d, w0[0], MD4C00, MD4S00);
MD4_STEP (MD4_Fo, d, a, b, c, w0[1], MD4C00, MD4S01);
MD4_STEP (MD4_Fo, c, d, a, b, w0[2], MD4C00, MD4S02);
MD4_STEP (MD4_Fo, b, c, d, a, w0[3], MD4C00, MD4S03);
MD4_STEP (MD4_Fo, a, b, c, d, w1[0], MD4C00, MD4S00);
MD4_STEP (MD4_Fo, d, a, b, c, w1[1], MD4C00, MD4S01);
MD4_STEP (MD4_Fo, c, d, a, b, w1[2], MD4C00, MD4S02);
MD4_STEP (MD4_Fo, b, c, d, a, w1[3], MD4C00, MD4S03);
MD4_STEP (MD4_Fo, a, b, c, d, w2[0], MD4C00, MD4S00);
MD4_STEP (MD4_Fo, d, a, b, c, w2[1], MD4C00, MD4S01);
MD4_STEP (MD4_Fo, c, d, a, b, w2[2], MD4C00, MD4S02);
MD4_STEP (MD4_Fo, b, c, d, a, w2[3], MD4C00, MD4S03);
MD4_STEP (MD4_Fo, a, b, c, d, w3[0], MD4C00, MD4S00);
MD4_STEP (MD4_Fo, d, a, b, c, w3[1], MD4C00, MD4S01);
MD4_STEP (MD4_Fo, c, d, a, b, w3[2], MD4C00, MD4S02);
MD4_STEP (MD4_Fo, b, c, d, a, w3[3], MD4C00, MD4S03);
MD4_STEP (MD4_Go, a, b, c, d, w0[0], MD4C01, MD4S10);
MD4_STEP (MD4_Go, d, a, b, c, w1[0], MD4C01, MD4S11);
MD4_STEP (MD4_Go, c, d, a, b, w2[0], MD4C01, MD4S12);
MD4_STEP (MD4_Go, b, c, d, a, w3[0], MD4C01, MD4S13);
MD4_STEP (MD4_Go, a, b, c, d, w0[1], MD4C01, MD4S10);
MD4_STEP (MD4_Go, d, a, b, c, w1[1], MD4C01, MD4S11);
MD4_STEP (MD4_Go, c, d, a, b, w2[1], MD4C01, MD4S12);
MD4_STEP (MD4_Go, b, c, d, a, w3[1], MD4C01, MD4S13);
MD4_STEP (MD4_Go, a, b, c, d, w0[2], MD4C01, MD4S10);
MD4_STEP (MD4_Go, d, a, b, c, w1[2], MD4C01, MD4S11);
MD4_STEP (MD4_Go, c, d, a, b, w2[2], MD4C01, MD4S12);
MD4_STEP (MD4_Go, b, c, d, a, w3[2], MD4C01, MD4S13);
MD4_STEP (MD4_Go, a, b, c, d, w0[3], MD4C01, MD4S10);
MD4_STEP (MD4_Go, d, a, b, c, w1[3], MD4C01, MD4S11);
MD4_STEP (MD4_Go, c, d, a, b, w2[3], MD4C01, MD4S12);
MD4_STEP (MD4_Go, b, c, d, a, w3[3], MD4C01, MD4S13);
MD4_STEP (MD4_H , a, b, c, d, w0[0], MD4C02, MD4S20);
MD4_STEP (MD4_H , d, a, b, c, w2[0], MD4C02, MD4S21);
MD4_STEP (MD4_H , c, d, a, b, w1[0], MD4C02, MD4S22);
MD4_STEP (MD4_H , b, c, d, a, w3[0], MD4C02, MD4S23);
MD4_STEP (MD4_H , a, b, c, d, w0[2], MD4C02, MD4S20);
MD4_STEP (MD4_H , d, a, b, c, w2[2], MD4C02, MD4S21);
MD4_STEP (MD4_H , c, d, a, b, w1[2], MD4C02, MD4S22);
MD4_STEP (MD4_H , b, c, d, a, w3[2], MD4C02, MD4S23);
MD4_STEP (MD4_H , a, b, c, d, w0[1], MD4C02, MD4S20);
MD4_STEP (MD4_H , d, a, b, c, w2[1], MD4C02, MD4S21);
MD4_STEP (MD4_H , c, d, a, b, w1[1], MD4C02, MD4S22);
MD4_STEP (MD4_H , b, c, d, a, w3[1], MD4C02, MD4S23);
MD4_STEP (MD4_H , a, b, c, d, w0[3], MD4C02, MD4S20);
MD4_STEP (MD4_H , d, a, b, c, w2[3], MD4C02, MD4S21);
MD4_STEP (MD4_H , c, d, a, b, w1[3], MD4C02, MD4S22);
MD4_STEP (MD4_H , b, c, d, a, w3[3], MD4C02, MD4S23);
digest[0] += a;
digest[1] += b;
digest[2] += c;
digest[3] += d;
}
DECLSPEC void md4_init_vector (md4_ctx_vector_t *ctx)
{
ctx->h[0] = MD4M_A;
ctx->h[1] = MD4M_B;
ctx->h[2] = MD4M_C;
ctx->h[3] = MD4M_D;
ctx->w0[0] = 0;
ctx->w0[1] = 0;
ctx->w0[2] = 0;
ctx->w0[3] = 0;
ctx->w1[0] = 0;
ctx->w1[1] = 0;
ctx->w1[2] = 0;
ctx->w1[3] = 0;
ctx->w2[0] = 0;
ctx->w2[1] = 0;
ctx->w2[2] = 0;
ctx->w2[3] = 0;
ctx->w3[0] = 0;
ctx->w3[1] = 0;
ctx->w3[2] = 0;
ctx->w3[3] = 0;
ctx->len = 0;
}
DECLSPEC void md4_init_vector_from_scalar (md4_ctx_vector_t *ctx, md4_ctx_t *ctx0)
{
ctx->h[0] = ctx0->h[0];
ctx->h[1] = ctx0->h[1];
ctx->h[2] = ctx0->h[2];
ctx->h[3] = ctx0->h[3];
ctx->w0[0] = ctx0->w0[0];
ctx->w0[1] = ctx0->w0[1];
ctx->w0[2] = ctx0->w0[2];
ctx->w0[3] = ctx0->w0[3];
ctx->w1[0] = ctx0->w1[0];
ctx->w1[1] = ctx0->w1[1];
ctx->w1[2] = ctx0->w1[2];
ctx->w1[3] = ctx0->w1[3];
ctx->w2[0] = ctx0->w2[0];
ctx->w2[1] = ctx0->w2[1];
ctx->w2[2] = ctx0->w2[2];
ctx->w2[3] = ctx0->w2[3];
ctx->w3[0] = ctx0->w3[0];
ctx->w3[1] = ctx0->w3[1];
ctx->w3[2] = ctx0->w3[2];
ctx->w3[3] = ctx0->w3[3];
ctx->len = ctx0->len;
}
DECLSPEC void md4_update_vector_64 (md4_ctx_vector_t *ctx, u32x *w0, u32x *w1, u32x *w2, u32x *w3, const int len)
{
if (len == 0) return;
const int pos = ctx->len & 63;
ctx->len += len;
if (pos == 0)
{
ctx->w0[0] = w0[0];
ctx->w0[1] = w0[1];
ctx->w0[2] = w0[2];
ctx->w0[3] = w0[3];
ctx->w1[0] = w1[0];
ctx->w1[1] = w1[1];
ctx->w1[2] = w1[2];
ctx->w1[3] = w1[3];
ctx->w2[0] = w2[0];
ctx->w2[1] = w2[1];
ctx->w2[2] = w2[2];
ctx->w2[3] = w2[3];
ctx->w3[0] = w3[0];
ctx->w3[1] = w3[1];
ctx->w3[2] = w3[2];
ctx->w3[3] = w3[3];
if (len == 64)
{
md4_transform_vector (ctx->w0, ctx->w1, ctx->w2, ctx->w3, ctx->h);
ctx->w0[0] = 0;
ctx->w0[1] = 0;
ctx->w0[2] = 0;
ctx->w0[3] = 0;
ctx->w1[0] = 0;
ctx->w1[1] = 0;
ctx->w1[2] = 0;
ctx->w1[3] = 0;
ctx->w2[0] = 0;
ctx->w2[1] = 0;
ctx->w2[2] = 0;
ctx->w2[3] = 0;
ctx->w3[0] = 0;
ctx->w3[1] = 0;
ctx->w3[2] = 0;
ctx->w3[3] = 0;
}
}
else
{
if ((pos + len) < 64)
{
switch_buffer_by_offset_le (w0, w1, w2, w3, pos);
ctx->w0[0] |= w0[0];
ctx->w0[1] |= w0[1];
ctx->w0[2] |= w0[2];
ctx->w0[3] |= w0[3];
ctx->w1[0] |= w1[0];
ctx->w1[1] |= w1[1];
ctx->w1[2] |= w1[2];
ctx->w1[3] |= w1[3];
ctx->w2[0] |= w2[0];
ctx->w2[1] |= w2[1];
ctx->w2[2] |= w2[2];
ctx->w2[3] |= w2[3];
ctx->w3[0] |= w3[0];
ctx->w3[1] |= w3[1];
ctx->w3[2] |= w3[2];
ctx->w3[3] |= w3[3];
}
else
{
u32x c0[4] = { 0 };
u32x c1[4] = { 0 };
u32x c2[4] = { 0 };
u32x c3[4] = { 0 };
switch_buffer_by_offset_carry_le (w0, w1, w2, w3, c0, c1, c2, c3, pos);
ctx->w0[0] |= w0[0];
ctx->w0[1] |= w0[1];
ctx->w0[2] |= w0[2];
ctx->w0[3] |= w0[3];
ctx->w1[0] |= w1[0];
ctx->w1[1] |= w1[1];
ctx->w1[2] |= w1[2];
ctx->w1[3] |= w1[3];
ctx->w2[0] |= w2[0];
ctx->w2[1] |= w2[1];
ctx->w2[2] |= w2[2];
ctx->w2[3] |= w2[3];
ctx->w3[0] |= w3[0];
ctx->w3[1] |= w3[1];
ctx->w3[2] |= w3[2];
ctx->w3[3] |= w3[3];
md4_transform_vector (ctx->w0, ctx->w1, ctx->w2, ctx->w3, ctx->h);
ctx->w0[0] = c0[0];
ctx->w0[1] = c0[1];
ctx->w0[2] = c0[2];
ctx->w0[3] = c0[3];
ctx->w1[0] = c1[0];
ctx->w1[1] = c1[1];
ctx->w1[2] = c1[2];
ctx->w1[3] = c1[3];
ctx->w2[0] = c2[0];
ctx->w2[1] = c2[1];
ctx->w2[2] = c2[2];
ctx->w2[3] = c2[3];
ctx->w3[0] = c3[0];
ctx->w3[1] = c3[1];
ctx->w3[2] = c3[2];
ctx->w3[3] = c3[3];
}
}
}
DECLSPEC void md4_update_vector (md4_ctx_vector_t *ctx, const u32x *w, const int len)
{
u32x w0[4];
u32x w1[4];
u32x w2[4];
u32x w3[4];
int pos1;
int pos4;
for (pos1 = 0, pos4 = 0; pos1 < len - 64; pos1 += 64, pos4 += 16)
{
w0[0] = w[pos4 + 0];
w0[1] = w[pos4 + 1];
w0[2] = w[pos4 + 2];
w0[3] = w[pos4 + 3];
w1[0] = w[pos4 + 4];
w1[1] = w[pos4 + 5];
w1[2] = w[pos4 + 6];
w1[3] = w[pos4 + 7];
w2[0] = w[pos4 + 8];
w2[1] = w[pos4 + 9];
w2[2] = w[pos4 + 10];
w2[3] = w[pos4 + 11];
w3[0] = w[pos4 + 12];
w3[1] = w[pos4 + 13];
w3[2] = w[pos4 + 14];
w3[3] = w[pos4 + 15];
md4_update_vector_64 (ctx, w0, w1, w2, w3, 64);
}
w0[0] = w[pos4 + 0];
w0[1] = w[pos4 + 1];
w0[2] = w[pos4 + 2];
w0[3] = w[pos4 + 3];
w1[0] = w[pos4 + 4];
w1[1] = w[pos4 + 5];
w1[2] = w[pos4 + 6];
w1[3] = w[pos4 + 7];
w2[0] = w[pos4 + 8];
w2[1] = w[pos4 + 9];
w2[2] = w[pos4 + 10];
w2[3] = w[pos4 + 11];
w3[0] = w[pos4 + 12];
w3[1] = w[pos4 + 13];
w3[2] = w[pos4 + 14];
w3[3] = w[pos4 + 15];
md4_update_vector_64 (ctx, w0, w1, w2, w3, len - pos1);
}
DECLSPEC void md4_update_vector_swap (md4_ctx_vector_t *ctx, const u32x *w, const int len)
{
u32x w0[4];
u32x w1[4];
u32x w2[4];
u32x w3[4];
int pos1;
int pos4;
for (pos1 = 0, pos4 = 0; pos1 < len - 64; pos1 += 64, pos4 += 16)
{
w0[0] = w[pos4 + 0];
w0[1] = w[pos4 + 1];
w0[2] = w[pos4 + 2];
w0[3] = w[pos4 + 3];
w1[0] = w[pos4 + 4];
w1[1] = w[pos4 + 5];
w1[2] = w[pos4 + 6];
w1[3] = w[pos4 + 7];
w2[0] = w[pos4 + 8];
w2[1] = w[pos4 + 9];
w2[2] = w[pos4 + 10];
w2[3] = w[pos4 + 11];
w3[0] = w[pos4 + 12];
w3[1] = w[pos4 + 13];
w3[2] = w[pos4 + 14];
w3[3] = w[pos4 + 15];
w0[0] = hc_swap32 (w0[0]);
w0[1] = hc_swap32 (w0[1]);
w0[2] = hc_swap32 (w0[2]);
w0[3] = hc_swap32 (w0[3]);
w1[0] = hc_swap32 (w1[0]);
w1[1] = hc_swap32 (w1[1]);
w1[2] = hc_swap32 (w1[2]);
w1[3] = hc_swap32 (w1[3]);
w2[0] = hc_swap32 (w2[0]);
w2[1] = hc_swap32 (w2[1]);
w2[2] = hc_swap32 (w2[2]);
w2[3] = hc_swap32 (w2[3]);
w3[0] = hc_swap32 (w3[0]);
w3[1] = hc_swap32 (w3[1]);
w3[2] = hc_swap32 (w3[2]);
w3[3] = hc_swap32 (w3[3]);
md4_update_vector_64 (ctx, w0, w1, w2, w3, 64);
}
w0[0] = w[pos4 + 0];
w0[1] = w[pos4 + 1];
w0[2] = w[pos4 + 2];
w0[3] = w[pos4 + 3];
w1[0] = w[pos4 + 4];
w1[1] = w[pos4 + 5];
w1[2] = w[pos4 + 6];
w1[3] = w[pos4 + 7];
w2[0] = w[pos4 + 8];
w2[1] = w[pos4 + 9];
w2[2] = w[pos4 + 10];
w2[3] = w[pos4 + 11];
w3[0] = w[pos4 + 12];
w3[1] = w[pos4 + 13];
w3[2] = w[pos4 + 14];
w3[3] = w[pos4 + 15];
w0[0] = hc_swap32 (w0[0]);
w0[1] = hc_swap32 (w0[1]);
w0[2] = hc_swap32 (w0[2]);
w0[3] = hc_swap32 (w0[3]);
w1[0] = hc_swap32 (w1[0]);
w1[1] = hc_swap32 (w1[1]);
w1[2] = hc_swap32 (w1[2]);
w1[3] = hc_swap32 (w1[3]);
w2[0] = hc_swap32 (w2[0]);
w2[1] = hc_swap32 (w2[1]);
w2[2] = hc_swap32 (w2[2]);
w2[3] = hc_swap32 (w2[3]);
w3[0] = hc_swap32 (w3[0]);
w3[1] = hc_swap32 (w3[1]);
w3[2] = hc_swap32 (w3[2]);
w3[3] = hc_swap32 (w3[3]);
md4_update_vector_64 (ctx, w0, w1, w2, w3, len - pos1);
}
DECLSPEC void md4_update_vector_utf16le (md4_ctx_vector_t *ctx, const u32x *w, const int len)
{
u32x w0[4];
u32x w1[4];
u32x w2[4];
u32x w3[4];
int pos1;
int pos4;
for (pos1 = 0, pos4 = 0; pos1 < len - 32; pos1 += 32, pos4 += 8)
{
w0[0] = w[pos4 + 0];
w0[1] = w[pos4 + 1];
w0[2] = w[pos4 + 2];
w0[3] = w[pos4 + 3];
w1[0] = w[pos4 + 4];
w1[1] = w[pos4 + 5];
w1[2] = w[pos4 + 6];
w1[3] = w[pos4 + 7];
make_utf16le (w1, w2, w3);
make_utf16le (w0, w0, w1);
md4_update_vector_64 (ctx, w0, w1, w2, w3, 32 * 2);
}
w0[0] = w[pos4 + 0];
w0[1] = w[pos4 + 1];
w0[2] = w[pos4 + 2];
w0[3] = w[pos4 + 3];
w1[0] = w[pos4 + 4];
w1[1] = w[pos4 + 5];
w1[2] = w[pos4 + 6];
w1[3] = w[pos4 + 7];
make_utf16le (w1, w2, w3);
make_utf16le (w0, w0, w1);
md4_update_vector_64 (ctx, w0, w1, w2, w3, (len - pos1) * 2);
}
DECLSPEC void md4_update_vector_utf16le_swap (md4_ctx_vector_t *ctx, const u32x *w, const int len)
{
u32x w0[4];
u32x w1[4];
u32x w2[4];
u32x w3[4];
int pos1;
int pos4;
for (pos1 = 0, pos4 = 0; pos1 < len - 32; pos1 += 32, pos4 += 8)
{
w0[0] = w[pos4 + 0];
w0[1] = w[pos4 + 1];
w0[2] = w[pos4 + 2];
w0[3] = w[pos4 + 3];
w1[0] = w[pos4 + 4];
w1[1] = w[pos4 + 5];
w1[2] = w[pos4 + 6];
w1[3] = w[pos4 + 7];
make_utf16le (w1, w2, w3);
make_utf16le (w0, w0, w1);
w0[0] = hc_swap32 (w0[0]);
w0[1] = hc_swap32 (w0[1]);
w0[2] = hc_swap32 (w0[2]);
w0[3] = hc_swap32 (w0[3]);
w1[0] = hc_swap32 (w1[0]);
w1[1] = hc_swap32 (w1[1]);
w1[2] = hc_swap32 (w1[2]);
w1[3] = hc_swap32 (w1[3]);
w2[0] = hc_swap32 (w2[0]);
w2[1] = hc_swap32 (w2[1]);
w2[2] = hc_swap32 (w2[2]);
w2[3] = hc_swap32 (w2[3]);
w3[0] = hc_swap32 (w3[0]);
w3[1] = hc_swap32 (w3[1]);
w3[2] = hc_swap32 (w3[2]);
w3[3] = hc_swap32 (w3[3]);
md4_update_vector_64 (ctx, w0, w1, w2, w3, 32 * 2);
}
w0[0] = w[pos4 + 0];
w0[1] = w[pos4 + 1];
w0[2] = w[pos4 + 2];
w0[3] = w[pos4 + 3];
w1[0] = w[pos4 + 4];
w1[1] = w[pos4 + 5];
w1[2] = w[pos4 + 6];
w1[3] = w[pos4 + 7];
make_utf16le (w1, w2, w3);
make_utf16le (w0, w0, w1);
w0[0] = hc_swap32 (w0[0]);
w0[1] = hc_swap32 (w0[1]);
w0[2] = hc_swap32 (w0[2]);
w0[3] = hc_swap32 (w0[3]);
w1[0] = hc_swap32 (w1[0]);
w1[1] = hc_swap32 (w1[1]);
w1[2] = hc_swap32 (w1[2]);
w1[3] = hc_swap32 (w1[3]);
w2[0] = hc_swap32 (w2[0]);
w2[1] = hc_swap32 (w2[1]);
w2[2] = hc_swap32 (w2[2]);
w2[3] = hc_swap32 (w2[3]);
w3[0] = hc_swap32 (w3[0]);
w3[1] = hc_swap32 (w3[1]);
w3[2] = hc_swap32 (w3[2]);
w3[3] = hc_swap32 (w3[3]);
md4_update_vector_64 (ctx, w0, w1, w2, w3, (len - pos1) * 2);
}
DECLSPEC void md4_final_vector (md4_ctx_vector_t *ctx)
{
const int pos = ctx->len & 63;
append_0x80_4x4 (ctx->w0, ctx->w1, ctx->w2, ctx->w3, pos);
if (pos >= 56)
{
md4_transform_vector (ctx->w0, ctx->w1, ctx->w2, ctx->w3, ctx->h);
ctx->w0[0] = 0;
ctx->w0[1] = 0;
ctx->w0[2] = 0;
ctx->w0[3] = 0;
ctx->w1[0] = 0;
ctx->w1[1] = 0;
ctx->w1[2] = 0;
ctx->w1[3] = 0;
ctx->w2[0] = 0;
ctx->w2[1] = 0;
ctx->w2[2] = 0;
ctx->w2[3] = 0;
ctx->w3[0] = 0;
ctx->w3[1] = 0;
ctx->w3[2] = 0;
ctx->w3[3] = 0;
}
ctx->w3[2] = ctx->len * 8;
ctx->w3[3] = 0;
md4_transform_vector (ctx->w0, ctx->w1, ctx->w2, ctx->w3, ctx->h);
}
// HMAC + Vector
DECLSPEC void md4_hmac_init_vector_64 (md4_hmac_ctx_vector_t *ctx, const u32x *w0, const u32x *w1, const u32x *w2, const u32x *w3)
{
u32x a0[4];
u32x a1[4];
u32x a2[4];
u32x a3[4];
// ipad
a0[0] = w0[0] ^ 0x36363636;
a0[1] = w0[1] ^ 0x36363636;
a0[2] = w0[2] ^ 0x36363636;
a0[3] = w0[3] ^ 0x36363636;
a1[0] = w1[0] ^ 0x36363636;
a1[1] = w1[1] ^ 0x36363636;
a1[2] = w1[2] ^ 0x36363636;
a1[3] = w1[3] ^ 0x36363636;
a2[0] = w2[0] ^ 0x36363636;
a2[1] = w2[1] ^ 0x36363636;
a2[2] = w2[2] ^ 0x36363636;
a2[3] = w2[3] ^ 0x36363636;
a3[0] = w3[0] ^ 0x36363636;
a3[1] = w3[1] ^ 0x36363636;
a3[2] = w3[2] ^ 0x36363636;
a3[3] = w3[3] ^ 0x36363636;
md4_init_vector (&ctx->ipad);
md4_update_vector_64 (&ctx->ipad, a0, a1, a2, a3, 64);
// opad
u32x b0[4];
u32x b1[4];
u32x b2[4];
u32x b3[4];
b0[0] = w0[0] ^ 0x5c5c5c5c;
b0[1] = w0[1] ^ 0x5c5c5c5c;
b0[2] = w0[2] ^ 0x5c5c5c5c;
b0[3] = w0[3] ^ 0x5c5c5c5c;
b1[0] = w1[0] ^ 0x5c5c5c5c;
b1[1] = w1[1] ^ 0x5c5c5c5c;
b1[2] = w1[2] ^ 0x5c5c5c5c;
b1[3] = w1[3] ^ 0x5c5c5c5c;
b2[0] = w2[0] ^ 0x5c5c5c5c;
b2[1] = w2[1] ^ 0x5c5c5c5c;
b2[2] = w2[2] ^ 0x5c5c5c5c;
b2[3] = w2[3] ^ 0x5c5c5c5c;
b3[0] = w3[0] ^ 0x5c5c5c5c;
b3[1] = w3[1] ^ 0x5c5c5c5c;
b3[2] = w3[2] ^ 0x5c5c5c5c;
b3[3] = w3[3] ^ 0x5c5c5c5c;
md4_init_vector (&ctx->opad);
md4_update_vector_64 (&ctx->opad, b0, b1, b2, b3, 64);
}
DECLSPEC void md4_hmac_init_vector (md4_hmac_ctx_vector_t *ctx, const u32x *w, const int len)
{
u32x w0[4];
u32x w1[4];
u32x w2[4];
u32x w3[4];
if (len > 64)
{
md4_ctx_vector_t tmp;
md4_init_vector (&tmp);
md4_update_vector (&tmp, w, len);
md4_final_vector (&tmp);
w0[0] = tmp.h[0];
w0[1] = tmp.h[1];
w0[2] = tmp.h[2];
w0[3] = tmp.h[3];
w1[0] = 0;
w1[1] = 0;
w1[2] = 0;
w1[3] = 0;
w2[0] = 0;
w2[1] = 0;
w2[2] = 0;
w2[3] = 0;
w3[0] = 0;
w3[1] = 0;
w3[2] = 0;
w3[3] = 0;
}
else
{
w0[0] = w[ 0];
w0[1] = w[ 1];
w0[2] = w[ 2];
w0[3] = w[ 3];
w1[0] = w[ 4];
w1[1] = w[ 5];
w1[2] = w[ 6];
w1[3] = w[ 7];
w2[0] = w[ 8];
w2[1] = w[ 9];
w2[2] = w[10];
w2[3] = w[11];
w3[0] = w[12];
w3[1] = w[13];
w3[2] = w[14];
w3[3] = w[15];
}
md4_hmac_init_vector_64 (ctx, w0, w1, w2, w3);
}
DECLSPEC void md4_hmac_update_vector_64 (md4_hmac_ctx_vector_t *ctx, u32x *w0, u32x *w1, u32x *w2, u32x *w3, const int len)
{
md4_update_vector_64 (&ctx->ipad, w0, w1, w2, w3, len);
}
DECLSPEC void md4_hmac_update_vector (md4_hmac_ctx_vector_t *ctx, const u32x *w, const int len)
{
md4_update_vector (&ctx->ipad, w, len);
}
DECLSPEC void md4_hmac_final_vector (md4_hmac_ctx_vector_t *ctx)
{
md4_final_vector (&ctx->ipad);
ctx->opad.w0[0] = ctx->ipad.h[0];
ctx->opad.w0[1] = ctx->ipad.h[1];
ctx->opad.w0[2] = ctx->ipad.h[2];
ctx->opad.w0[3] = ctx->ipad.h[3];
ctx->opad.w1[0] = 0;
ctx->opad.w1[1] = 0;
ctx->opad.w1[2] = 0;
ctx->opad.w1[3] = 0;
ctx->opad.w2[0] = 0;
ctx->opad.w2[1] = 0;
ctx->opad.w2[2] = 0;
ctx->opad.w2[3] = 0;
ctx->opad.w3[0] = 0;
ctx->opad.w3[1] = 0;
ctx->opad.w3[2] = 0;
ctx->opad.w3[3] = 0;
ctx->opad.len += 16;
md4_final_vector (&ctx->opad);
}
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