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Code Issues Releases Wiki Activity

Do not use values that can actually crack a hash in autotune

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This commit is contained in:
Jens Steube 2016-02-23 15:00:56 +01:00
parent a81162b087
commit 01c847ba94
2 changed files with 30 additions and 37 deletions
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28
OpenCL/m00060_a3.cl
View File

@ -217,18 +217,28 @@ static void m00060m (u32 w0[4], u32 w1[4], u32 w2[4], u32 w3[4], const u32 pw_le
*/
u32 salt_buf0[4];
u32 salt_buf1[4];
u32 salt_buf2[4];
u32 salt_buf3[4];
salt_buf0[0] = salt_bufs[salt_pos].salt_buf[ 0];
salt_buf0[1] = salt_bufs[salt_pos].salt_buf[ 1];
salt_buf0[2] = salt_bufs[salt_pos].salt_buf[ 2];
salt_buf0[3] = salt_bufs[salt_pos].salt_buf[ 3];
u32 salt_buf1[4];
salt_buf1[0] = salt_bufs[salt_pos].salt_buf[ 4];
salt_buf1[1] = salt_bufs[salt_pos].salt_buf[ 5];
salt_buf1[2] = salt_bufs[salt_pos].salt_buf[ 6];
salt_buf1[3] = salt_bufs[salt_pos].salt_buf[ 7];
salt_buf2[0] = salt_bufs[salt_pos].salt_buf[ 8];
salt_buf2[1] = salt_bufs[salt_pos].salt_buf[ 9];
salt_buf2[2] = salt_bufs[salt_pos].salt_buf[10];
salt_buf2[3] = salt_bufs[salt_pos].salt_buf[11];
salt_buf3[0] = salt_bufs[salt_pos].salt_buf[12];
salt_buf3[1] = salt_bufs[salt_pos].salt_buf[13];
salt_buf3[2] = salt_bufs[salt_pos].salt_buf[14];
salt_buf3[3] = salt_bufs[salt_pos].salt_buf[15];
const u32 salt_len = salt_bufs[salt_pos].salt_len;
/**
* pads
@ -271,9 +281,9 @@ static void m00060m (u32 w0[4], u32 w1[4], u32 w2[4], u32 w3[4], const u32 pw_le
{
const u32x w0r = ix_create_bft (bfs_buf, il_pos);
const u32x w0rl = w0r | w0l;
const u32x w0lr = w0l | w0r;
w0_t[0] = w0rl;
w0_t[0] = w0lr;
w0_t[1] = w0[1];
w0_t[2] = w0[2];
w0_t[3] = w0[3];
@ -290,8 +300,6 @@ static void m00060m (u32 w0[4], u32 w1[4], u32 w2[4], u32 w3[4], const u32 pw_le
w3_t[2] = (64 + pw_len) * 8;
w3_t[3] = 0;
append_0x80_4x4 (w0_t, w1_t, w2_t, w3_t, pw_len);
u32x digest[4];
hmac_md5_run (w0_t, w1_t, w2_t, w3_t, ipad, opad, digest);
@ -390,9 +398,9 @@ static void m00060s (u32 w0[4], u32 w1[4], u32 w2[4], u32 w3[4], const u32 pw_le
{
const u32x w0r = ix_create_bft (bfs_buf, il_pos);
const u32x w0rl = w0r | w0l;
const u32x w0lr = w0l | w0r;
w0_t[0] = w0rl;
w0_t[0] = w0lr;
w0_t[1] = w0[1];
w0_t[2] = w0[2];
w0_t[3] = w0[3];
@ -409,8 +417,6 @@ static void m00060s (u32 w0[4], u32 w1[4], u32 w2[4], u32 w3[4], const u32 pw_le
w3_t[2] = (64 + pw_len) * 8;
w3_t[3] = 0;
append_0x80_4x4 (w0_t, w1_t, w2_t, w3_t, pw_len);
u32x digest[4];
hmac_md5_run (w0_t, w1_t, w2_t, w3_t, ipad, opad, digest);

39
src/oclHashcat.c
View File

@ -2823,24 +2823,17 @@ static double try_run (hc_device_param_t *device_param, const u32 kernel_accel,
// init some fake words
if (data.attack_kern == ATTACK_KERN_BF)
for (u32 i = 0; i < kernel_power; i++)
{
run_kernel_mp (KERN_RUN_MP_L, device_param, kernel_power);
run_kernel_mp (KERN_RUN_MP_R, device_param, kernel_loops);
device_param->pws_buf[i].i[1] = 0x01234567;
device_param->pws_buf[i].pw_len = i & 7;
}
else
hc_clEnqueueWriteBuffer (data.ocl, device_param->command_queue, device_param->d_pws_buf, CL_TRUE, 0, kernel_power * sizeof (pw_t), device_param->pws_buf, 0, NULL, NULL);
if (data.attack_exec == ATTACK_EXEC_OUTSIDE_KERNEL)
{
for (u32 i = 0; i < kernel_power; i++)
{
device_param->pws_buf[i].pw_len = i & 7;
}
hc_clEnqueueWriteBuffer (data.ocl, device_param->command_queue, device_param->d_pws_buf, CL_TRUE, 0, kernel_power * sizeof (pw_t), device_param->pws_buf, 0, NULL, NULL);
if (data.attack_exec == ATTACK_EXEC_OUTSIDE_KERNEL)
{
run_kernel_amp (device_param, kernel_power);
}
run_kernel_amp (device_param, kernel_power);
}
// caching run
@ -2991,12 +2984,10 @@ static void autotune (hc_device_param_t *device_param)
// final balance
const double exec_ms = try_run (device_param, kernel_accel, kernel_loops, 1);
u32 kernel_accel_best = kernel_accel;
u32 kernel_loops_best = kernel_loops;
u32 exec_best = exec_ms;
u32 exec_best = -1;
// reset
@ -3023,14 +3014,10 @@ static void autotune (hc_device_param_t *device_param)
exec_best = exec_ms;
}
}
kernel_accel = kernel_accel_best;
kernel_loops = kernel_loops_best;
}
// reset
if (kernel_loops_min < kernel_loops_max)
{
u32 kernel_accel_try = kernel_accel;
@ -3054,9 +3041,6 @@ static void autotune (hc_device_param_t *device_param)
exec_best = exec_ms;
}
}
kernel_accel = kernel_accel_best;
kernel_loops = kernel_loops_best;
}
// reset timer
@ -3067,8 +3051,11 @@ static void autotune (hc_device_param_t *device_param)
// store
device_param->kernel_loops = kernel_loops;
kernel_accel = kernel_accel_best;
kernel_loops = kernel_loops_best;
device_param->kernel_accel = kernel_accel;
device_param->kernel_loops = kernel_loops;
const u32 kernel_power = device_param->device_processors * device_param->kernel_threads * device_param->kernel_accel;