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hashcat/OpenCL/m22951_a1-pure.cl
Jens Steube 04d5e5a119 New Attack-Mode: Association Attack. Like JtR's single mode. Very early 
stage. See hashcat Forum for detailed writeup.
2020-09-29 15:56:32 +02:00

484 lines
10 KiB
Common Lisp
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/**
* Author......: See docs/credits.txt
* License.....: MIT
*/
//#define NEW_SIMD_CODE
#ifdef KERNEL_STATIC
#include "inc_vendor.h"
#include "inc_types.h"
#include "inc_platform.cl"
#include "inc_common.cl"
#include "inc_scalar.cl"
#include "inc_hash_md5.cl"
#include "inc_cipher_aes.cl"
#endif
typedef struct pem
{
u32 data_buf[16384];
int data_len;
int cipher;
} pem_t;
KERNEL_FQ void m22951_mxx (KERN_ATTR_ESALT (pem_t))
{
const u64 gid = get_global_id (0);
const u64 lid = get_local_id (0);
const u64 lsz = get_local_size (0);
/**
* aes shared
*/
#ifdef REAL_SHM
LOCAL_VK u32 s_td0[256];
LOCAL_VK u32 s_td1[256];
LOCAL_VK u32 s_td2[256];
LOCAL_VK u32 s_td3[256];
LOCAL_VK u32 s_td4[256];
LOCAL_VK u32 s_te0[256];
LOCAL_VK u32 s_te1[256];
LOCAL_VK u32 s_te2[256];
LOCAL_VK u32 s_te3[256];
LOCAL_VK u32 s_te4[256];
for (u32 i = lid; i < 256; i += lsz)
{
s_td0[i] = td0[i];
s_td1[i] = td1[i];
s_td2[i] = td2[i];
s_td3[i] = td3[i];
s_td4[i] = td4[i];
s_te0[i] = te0[i];
s_te1[i] = te1[i];
s_te2[i] = te2[i];
s_te3[i] = te3[i];
s_te4[i] = te4[i];
}
SYNC_THREADS ();
#else
CONSTANT_AS u32a *s_td0 = td0;
CONSTANT_AS u32a *s_td1 = td1;
CONSTANT_AS u32a *s_td2 = td2;
CONSTANT_AS u32a *s_td3 = td3;
CONSTANT_AS u32a *s_td4 = td4;
CONSTANT_AS u32a *s_te0 = te0;
CONSTANT_AS u32a *s_te1 = te1;
CONSTANT_AS u32a *s_te2 = te2;
CONSTANT_AS u32a *s_te3 = te3;
CONSTANT_AS u32a *s_te4 = te4;
#endif
if (gid >= gid_max) return;
/**
* digest
*/
const u32 search[4] =
{
digests_buf[DIGESTS_OFFSET].digest_buf[0],
digests_buf[DIGESTS_OFFSET].digest_buf[1],
digests_buf[DIGESTS_OFFSET].digest_buf[2],
digests_buf[DIGESTS_OFFSET].digest_buf[3]
};
/**
* base
*/
u32 s[4];
s[0] = salt_bufs[SALT_POS].salt_buf[0];
s[1] = salt_bufs[SALT_POS].salt_buf[1];
s[2] = salt_bufs[SALT_POS].salt_buf[2];
s[3] = salt_bufs[SALT_POS].salt_buf[3];
u32 first_data[4];
first_data[0] = esalt_bufs[DIGESTS_OFFSET].data_buf[0];
first_data[1] = esalt_bufs[DIGESTS_OFFSET].data_buf[1];
first_data[2] = esalt_bufs[DIGESTS_OFFSET].data_buf[2];
first_data[3] = esalt_bufs[DIGESTS_OFFSET].data_buf[3];
const int data_len = esalt_bufs[DIGESTS_OFFSET].data_len;
const int last_pad_pos = data_len - 1;
const int last_pad_elem = last_pad_pos / 4;
u32 iv[4];
iv[0] = esalt_bufs[DIGESTS_OFFSET].data_buf[last_pad_elem - 7];
iv[1] = esalt_bufs[DIGESTS_OFFSET].data_buf[last_pad_elem - 6];
iv[2] = esalt_bufs[DIGESTS_OFFSET].data_buf[last_pad_elem - 5];
iv[3] = esalt_bufs[DIGESTS_OFFSET].data_buf[last_pad_elem - 4];
u32 enc[4];
enc[0] = esalt_bufs[DIGESTS_OFFSET].data_buf[last_pad_elem - 3];
enc[1] = esalt_bufs[DIGESTS_OFFSET].data_buf[last_pad_elem - 2];
enc[2] = esalt_bufs[DIGESTS_OFFSET].data_buf[last_pad_elem - 1];
enc[3] = esalt_bufs[DIGESTS_OFFSET].data_buf[last_pad_elem - 0];
/**
* loop
*/
for (u32 il_pos = 0; il_pos < il_cnt; il_pos++)
{
md5_ctx_t ctx;
md5_init (&ctx);
md5_update_global (&ctx, pws[gid].i, pws[gid].pw_len);
md5_update_global (&ctx, combs_buf[il_pos].i, combs_buf[il_pos].pw_len);
u32 t[16];
t[ 0] = s[0];
t[ 1] = s[1];
t[ 2] = 0;
t[ 3] = 0;
t[ 4] = 0;
t[ 5] = 0;
t[ 6] = 0;
t[ 7] = 0;
t[ 8] = 0;
t[ 9] = 0;
t[10] = 0;
t[11] = 0;
t[12] = 0;
t[13] = 0;
t[14] = 0;
t[15] = 0;
md5_update (&ctx, t, 8);
md5_final (&ctx);
u32 ukey[8];
ukey[0] = ctx.h[0];
ukey[1] = ctx.h[1];
ukey[2] = ctx.h[2];
ukey[3] = ctx.h[3];
md5_init (&ctx);
ctx.w0[0] = ukey[0];
ctx.w0[1] = ukey[1];
ctx.w0[2] = ukey[2];
ctx.w0[3] = ukey[3];
ctx.len = 16;
md5_update_global (&ctx, pws[gid].i, pws[gid].pw_len);
md5_update_global (&ctx, combs_buf[il_pos].i, combs_buf[il_pos].pw_len);
md5_update (&ctx, t, 8);
md5_final (&ctx);
ukey[4] = ctx.h[0];
ukey[5] = ctx.h[1];
ukey[6] = ctx.h[2];
ukey[7] = ctx.h[3];
// AES
ukey[0] = hc_swap32_S (ukey[0]);
ukey[1] = hc_swap32_S (ukey[1]);
ukey[2] = hc_swap32_S (ukey[2]);
ukey[3] = hc_swap32_S (ukey[3]);
ukey[4] = hc_swap32_S (ukey[4]);
ukey[5] = hc_swap32_S (ukey[5]);
ukey[6] = hc_swap32_S (ukey[6]);
ukey[7] = hc_swap32_S (ukey[7]);
u32 ks[60];
AES256_set_decrypt_key (ks, ukey, s_te0, s_te1, s_te2, s_te3, s_td0, s_td1, s_td2, s_td3);
u32 dec[4];
// first check the padding
aes256_decrypt (ks, enc, dec, s_td0, s_td1, s_td2, s_td3, s_td4);
dec[0] ^= iv[0];
dec[1] ^= iv[1];
dec[2] ^= iv[2];
dec[3] ^= iv[3];
const int paddingv = pkcs_padding_bs16 (dec, 16);
if (paddingv == -1) continue;
// second check (naive code) ASN.1 structure
aes256_decrypt (ks, first_data, dec, s_td0, s_td1, s_td2, s_td3, s_td4);
dec[0] ^= s[0];
dec[1] ^= s[1];
dec[2] ^= s[2];
dec[3] ^= s[3];
const int real_len = (data_len - 16) + paddingv;
const int asn1_ok = asn1_detect (dec, real_len);
if (asn1_ok == 0) continue;
const u32 r0 = search[0];
const u32 r1 = search[1];
const u32 r2 = search[2];
const u32 r3 = search[3];
COMPARE_M_SCALAR (r0, r1, r2, r3);
}
}
KERNEL_FQ void m22951_sxx (KERN_ATTR_ESALT (pem_t))
{
const u64 gid = get_global_id (0);
const u64 lid = get_local_id (0);
const u64 lsz = get_local_size (0);
/**
* aes shared
*/
#ifdef REAL_SHM
LOCAL_VK u32 s_td0[256];
LOCAL_VK u32 s_td1[256];
LOCAL_VK u32 s_td2[256];
LOCAL_VK u32 s_td3[256];
LOCAL_VK u32 s_td4[256];
LOCAL_VK u32 s_te0[256];
LOCAL_VK u32 s_te1[256];
LOCAL_VK u32 s_te2[256];
LOCAL_VK u32 s_te3[256];
LOCAL_VK u32 s_te4[256];
for (u32 i = lid; i < 256; i += lsz)
{
s_td0[i] = td0[i];
s_td1[i] = td1[i];
s_td2[i] = td2[i];
s_td3[i] = td3[i];
s_td4[i] = td4[i];
s_te0[i] = te0[i];
s_te1[i] = te1[i];
s_te2[i] = te2[i];
s_te3[i] = te3[i];
s_te4[i] = te4[i];
}
SYNC_THREADS ();
#else
CONSTANT_AS u32a *s_td0 = td0;
CONSTANT_AS u32a *s_td1 = td1;
CONSTANT_AS u32a *s_td2 = td2;
CONSTANT_AS u32a *s_td3 = td3;
CONSTANT_AS u32a *s_td4 = td4;
CONSTANT_AS u32a *s_te0 = te0;
CONSTANT_AS u32a *s_te1 = te1;
CONSTANT_AS u32a *s_te2 = te2;
CONSTANT_AS u32a *s_te3 = te3;
CONSTANT_AS u32a *s_te4 = te4;
#endif
if (gid >= gid_max) return;
/**
* digest
*/
const u32 search[4] =
{
digests_buf[DIGESTS_OFFSET].digest_buf[0],
digests_buf[DIGESTS_OFFSET].digest_buf[1],
digests_buf[DIGESTS_OFFSET].digest_buf[2],
digests_buf[DIGESTS_OFFSET].digest_buf[3]
};
/**
* base
*/
u32 s[4];
s[0] = salt_bufs[SALT_POS].salt_buf[0];
s[1] = salt_bufs[SALT_POS].salt_buf[1];
s[2] = salt_bufs[SALT_POS].salt_buf[2];
s[3] = salt_bufs[SALT_POS].salt_buf[3];
u32 first_data[4];
first_data[0] = esalt_bufs[DIGESTS_OFFSET].data_buf[0];
first_data[1] = esalt_bufs[DIGESTS_OFFSET].data_buf[1];
first_data[2] = esalt_bufs[DIGESTS_OFFSET].data_buf[2];
first_data[3] = esalt_bufs[DIGESTS_OFFSET].data_buf[3];
const int data_len = esalt_bufs[DIGESTS_OFFSET].data_len;
const int last_pad_pos = data_len - 1;
const int last_pad_elem = last_pad_pos / 4;
u32 iv[4];
iv[0] = esalt_bufs[DIGESTS_OFFSET].data_buf[last_pad_elem - 7];
iv[1] = esalt_bufs[DIGESTS_OFFSET].data_buf[last_pad_elem - 6];
iv[2] = esalt_bufs[DIGESTS_OFFSET].data_buf[last_pad_elem - 5];
iv[3] = esalt_bufs[DIGESTS_OFFSET].data_buf[last_pad_elem - 4];
u32 enc[4];
enc[0] = esalt_bufs[DIGESTS_OFFSET].data_buf[last_pad_elem - 3];
enc[1] = esalt_bufs[DIGESTS_OFFSET].data_buf[last_pad_elem - 2];
enc[2] = esalt_bufs[DIGESTS_OFFSET].data_buf[last_pad_elem - 1];
enc[3] = esalt_bufs[DIGESTS_OFFSET].data_buf[last_pad_elem - 0];
/**
* loop
*/
for (u32 il_pos = 0; il_pos < il_cnt; il_pos++)
{
md5_ctx_t ctx;
md5_init (&ctx);
md5_update_global (&ctx, pws[gid].i, pws[gid].pw_len);
md5_update_global (&ctx, combs_buf[il_pos].i, combs_buf[il_pos].pw_len);
u32 t[16];
t[ 0] = s[0];
t[ 1] = s[1];
t[ 2] = 0;
t[ 3] = 0;
t[ 4] = 0;
t[ 5] = 0;
t[ 6] = 0;
t[ 7] = 0;
t[ 8] = 0;
t[ 9] = 0;
t[10] = 0;
t[11] = 0;
t[12] = 0;
t[13] = 0;
t[14] = 0;
t[15] = 0;
md5_update (&ctx, t, 8);
md5_final (&ctx);
u32 ukey[8];
ukey[0] = ctx.h[0];
ukey[1] = ctx.h[1];
ukey[2] = ctx.h[2];
ukey[3] = ctx.h[3];
md5_init (&ctx);
ctx.w0[0] = ukey[0];
ctx.w0[1] = ukey[1];
ctx.w0[2] = ukey[2];
ctx.w0[3] = ukey[3];
ctx.len = 16;
md5_update_global (&ctx, pws[gid].i, pws[gid].pw_len);
md5_update_global (&ctx, combs_buf[il_pos].i, combs_buf[il_pos].pw_len);
md5_update (&ctx, t, 8);
md5_final (&ctx);
ukey[4] = ctx.h[0];
ukey[5] = ctx.h[1];
ukey[6] = ctx.h[2];
ukey[7] = ctx.h[3];
// AES
ukey[0] = hc_swap32_S (ukey[0]);
ukey[1] = hc_swap32_S (ukey[1]);
ukey[2] = hc_swap32_S (ukey[2]);
ukey[3] = hc_swap32_S (ukey[3]);
ukey[4] = hc_swap32_S (ukey[4]);
ukey[5] = hc_swap32_S (ukey[5]);
ukey[6] = hc_swap32_S (ukey[6]);
ukey[7] = hc_swap32_S (ukey[7]);
u32 ks[60];
AES256_set_decrypt_key (ks, ukey, s_te0, s_te1, s_te2, s_te3, s_td0, s_td1, s_td2, s_td3);
u32 dec[4];
// first check the padding
aes256_decrypt (ks, enc, dec, s_td0, s_td1, s_td2, s_td3, s_td4);
dec[0] ^= iv[0];
dec[1] ^= iv[1];
dec[2] ^= iv[2];
dec[3] ^= iv[3];
const int paddingv = pkcs_padding_bs16 (dec, 16);
if (paddingv == -1) continue;
// second check (naive code) ASN.1 structure
aes256_decrypt (ks, first_data, dec, s_td0, s_td1, s_td2, s_td3, s_td4);
dec[0] ^= s[0];
dec[1] ^= s[1];
dec[2] ^= s[2];
dec[3] ^= s[3];
const int real_len = (data_len - 16) + paddingv;
const int asn1_ok = asn1_detect (dec, real_len);
if (asn1_ok == 0) continue;
const u32 r0 = search[0];
const u32 r1 = search[1];
const u32 r2 = search[2];
const u32 r3 = search[3];
COMPARE_S_SCALAR (r0, r1, r2, r3);
}
}
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