mirror of
https://github.com/hashcat/hashcat.git
synced 2024-12-27 17:08:12 +00:00
626 lines
16 KiB
Common Lisp
626 lines
16 KiB
Common Lisp
/**
|
|
* 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_simd.cl"
|
|
#include "inc_hash_sha256.cl"
|
|
#include "inc_cipher_aes.cl"
|
|
#include "inc_cipher_des.cl"
|
|
#endif
|
|
|
|
#define COMPARE_S "inc_comp_single.cl"
|
|
#define COMPARE_M "inc_comp_multi.cl"
|
|
|
|
typedef struct pkcs_sha256_tmp
|
|
{
|
|
u32 ipad[8];
|
|
u32 opad[8];
|
|
|
|
u32 dgst[32];
|
|
u32 out[32];
|
|
|
|
} pkcs_sha256_tmp_t;
|
|
|
|
typedef struct pkcs
|
|
{
|
|
int cipher;
|
|
|
|
u32 data_buf[16384];
|
|
int data_len;
|
|
|
|
u32 iv_buf[4];
|
|
|
|
} pkcs_t;
|
|
|
|
DECLSPEC void hmac_sha256_run_V (u32x *w0, u32x *w1, u32x *w2, u32x *w3, u32x *ipad, u32x *opad, u32x *digest)
|
|
{
|
|
digest[0] = ipad[0];
|
|
digest[1] = ipad[1];
|
|
digest[2] = ipad[2];
|
|
digest[3] = ipad[3];
|
|
digest[4] = ipad[4];
|
|
digest[5] = ipad[5];
|
|
digest[6] = ipad[6];
|
|
digest[7] = ipad[7];
|
|
|
|
sha256_transform_vector (w0, w1, w2, w3, digest);
|
|
|
|
w0[0] = digest[0];
|
|
w0[1] = digest[1];
|
|
w0[2] = digest[2];
|
|
w0[3] = digest[3];
|
|
w1[0] = digest[4];
|
|
w1[1] = digest[5];
|
|
w1[2] = digest[6];
|
|
w1[3] = digest[7];
|
|
w2[0] = 0x80000000;
|
|
w2[1] = 0;
|
|
w2[2] = 0;
|
|
w2[3] = 0;
|
|
w3[0] = 0;
|
|
w3[1] = 0;
|
|
w3[2] = 0;
|
|
w3[3] = (64 + 32) * 8;
|
|
|
|
digest[0] = opad[0];
|
|
digest[1] = opad[1];
|
|
digest[2] = opad[2];
|
|
digest[3] = opad[3];
|
|
digest[4] = opad[4];
|
|
digest[5] = opad[5];
|
|
digest[6] = opad[6];
|
|
digest[7] = opad[7];
|
|
|
|
sha256_transform_vector (w0, w1, w2, w3, digest);
|
|
}
|
|
|
|
KERNEL_FQ void m24420_init (KERN_ATTR_TMPS_ESALT (pkcs_sha256_tmp_t, pkcs_t))
|
|
{
|
|
/**
|
|
* base
|
|
*/
|
|
|
|
const u64 gid = get_global_id (0);
|
|
|
|
if (gid >= gid_max) return;
|
|
|
|
sha256_hmac_ctx_t sha256_hmac_ctx;
|
|
|
|
sha256_hmac_init_global_swap (&sha256_hmac_ctx, pws[gid].i, pws[gid].pw_len);
|
|
|
|
tmps[gid].ipad[0] = sha256_hmac_ctx.ipad.h[0];
|
|
tmps[gid].ipad[1] = sha256_hmac_ctx.ipad.h[1];
|
|
tmps[gid].ipad[2] = sha256_hmac_ctx.ipad.h[2];
|
|
tmps[gid].ipad[3] = sha256_hmac_ctx.ipad.h[3];
|
|
tmps[gid].ipad[4] = sha256_hmac_ctx.ipad.h[4];
|
|
tmps[gid].ipad[5] = sha256_hmac_ctx.ipad.h[5];
|
|
tmps[gid].ipad[6] = sha256_hmac_ctx.ipad.h[6];
|
|
tmps[gid].ipad[7] = sha256_hmac_ctx.ipad.h[7];
|
|
|
|
tmps[gid].opad[0] = sha256_hmac_ctx.opad.h[0];
|
|
tmps[gid].opad[1] = sha256_hmac_ctx.opad.h[1];
|
|
tmps[gid].opad[2] = sha256_hmac_ctx.opad.h[2];
|
|
tmps[gid].opad[3] = sha256_hmac_ctx.opad.h[3];
|
|
tmps[gid].opad[4] = sha256_hmac_ctx.opad.h[4];
|
|
tmps[gid].opad[5] = sha256_hmac_ctx.opad.h[5];
|
|
tmps[gid].opad[6] = sha256_hmac_ctx.opad.h[6];
|
|
tmps[gid].opad[7] = sha256_hmac_ctx.opad.h[7];
|
|
|
|
sha256_hmac_update_global_swap (&sha256_hmac_ctx, salt_bufs[SALT_POS].salt_buf, salt_bufs[SALT_POS].salt_len);
|
|
|
|
for (u32 i = 0, j = 1; i < 8; i += 8, j += 1)
|
|
{
|
|
sha256_hmac_ctx_t sha256_hmac_ctx2 = sha256_hmac_ctx;
|
|
|
|
u32 w0[4];
|
|
u32 w1[4];
|
|
u32 w2[4];
|
|
u32 w3[4];
|
|
|
|
w0[0] = j;
|
|
w0[1] = 0;
|
|
w0[2] = 0;
|
|
w0[3] = 0;
|
|
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;
|
|
|
|
sha256_hmac_update_64 (&sha256_hmac_ctx2, w0, w1, w2, w3, 4);
|
|
|
|
sha256_hmac_final (&sha256_hmac_ctx2);
|
|
|
|
tmps[gid].dgst[i + 0] = sha256_hmac_ctx2.opad.h[0];
|
|
tmps[gid].dgst[i + 1] = sha256_hmac_ctx2.opad.h[1];
|
|
tmps[gid].dgst[i + 2] = sha256_hmac_ctx2.opad.h[2];
|
|
tmps[gid].dgst[i + 3] = sha256_hmac_ctx2.opad.h[3];
|
|
tmps[gid].dgst[i + 4] = sha256_hmac_ctx2.opad.h[4];
|
|
tmps[gid].dgst[i + 5] = sha256_hmac_ctx2.opad.h[5];
|
|
tmps[gid].dgst[i + 6] = sha256_hmac_ctx2.opad.h[6];
|
|
tmps[gid].dgst[i + 7] = sha256_hmac_ctx2.opad.h[7];
|
|
|
|
tmps[gid].out[i + 0] = tmps[gid].dgst[i + 0];
|
|
tmps[gid].out[i + 1] = tmps[gid].dgst[i + 1];
|
|
tmps[gid].out[i + 2] = tmps[gid].dgst[i + 2];
|
|
tmps[gid].out[i + 3] = tmps[gid].dgst[i + 3];
|
|
tmps[gid].out[i + 4] = tmps[gid].dgst[i + 4];
|
|
tmps[gid].out[i + 5] = tmps[gid].dgst[i + 5];
|
|
tmps[gid].out[i + 6] = tmps[gid].dgst[i + 6];
|
|
tmps[gid].out[i + 7] = tmps[gid].dgst[i + 7];
|
|
}
|
|
}
|
|
|
|
KERNEL_FQ void m24420_loop (KERN_ATTR_TMPS_ESALT (pkcs_sha256_tmp_t, pkcs_t))
|
|
{
|
|
const u64 gid = get_global_id (0);
|
|
|
|
if ((gid * VECT_SIZE) >= gid_max) return;
|
|
|
|
u32x ipad[8];
|
|
u32x opad[8];
|
|
|
|
ipad[0] = packv (tmps, ipad, gid, 0);
|
|
ipad[1] = packv (tmps, ipad, gid, 1);
|
|
ipad[2] = packv (tmps, ipad, gid, 2);
|
|
ipad[3] = packv (tmps, ipad, gid, 3);
|
|
ipad[4] = packv (tmps, ipad, gid, 4);
|
|
ipad[5] = packv (tmps, ipad, gid, 5);
|
|
ipad[6] = packv (tmps, ipad, gid, 6);
|
|
ipad[7] = packv (tmps, ipad, gid, 7);
|
|
|
|
opad[0] = packv (tmps, opad, gid, 0);
|
|
opad[1] = packv (tmps, opad, gid, 1);
|
|
opad[2] = packv (tmps, opad, gid, 2);
|
|
opad[3] = packv (tmps, opad, gid, 3);
|
|
opad[4] = packv (tmps, opad, gid, 4);
|
|
opad[5] = packv (tmps, opad, gid, 5);
|
|
opad[6] = packv (tmps, opad, gid, 6);
|
|
opad[7] = packv (tmps, opad, gid, 7);
|
|
|
|
for (u32 i = 0; i < 8; i += 8)
|
|
{
|
|
u32x dgst[8];
|
|
u32x out[8];
|
|
|
|
dgst[0] = packv (tmps, dgst, gid, i + 0);
|
|
dgst[1] = packv (tmps, dgst, gid, i + 1);
|
|
dgst[2] = packv (tmps, dgst, gid, i + 2);
|
|
dgst[3] = packv (tmps, dgst, gid, i + 3);
|
|
dgst[4] = packv (tmps, dgst, gid, i + 4);
|
|
dgst[5] = packv (tmps, dgst, gid, i + 5);
|
|
dgst[6] = packv (tmps, dgst, gid, i + 6);
|
|
dgst[7] = packv (tmps, dgst, gid, i + 7);
|
|
|
|
out[0] = packv (tmps, out, gid, i + 0);
|
|
out[1] = packv (tmps, out, gid, i + 1);
|
|
out[2] = packv (tmps, out, gid, i + 2);
|
|
out[3] = packv (tmps, out, gid, i + 3);
|
|
out[4] = packv (tmps, out, gid, i + 4);
|
|
out[5] = packv (tmps, out, gid, i + 5);
|
|
out[6] = packv (tmps, out, gid, i + 6);
|
|
out[7] = packv (tmps, out, gid, i + 7);
|
|
|
|
for (u32 j = 0; j < loop_cnt; j++)
|
|
{
|
|
u32x w0[4];
|
|
u32x w1[4];
|
|
u32x w2[4];
|
|
u32x w3[4];
|
|
|
|
w0[0] = dgst[0];
|
|
w0[1] = dgst[1];
|
|
w0[2] = dgst[2];
|
|
w0[3] = dgst[3];
|
|
w1[0] = dgst[4];
|
|
w1[1] = dgst[5];
|
|
w1[2] = dgst[6];
|
|
w1[3] = dgst[7];
|
|
w2[0] = 0x80000000;
|
|
w2[1] = 0;
|
|
w2[2] = 0;
|
|
w2[3] = 0;
|
|
w3[0] = 0;
|
|
w3[1] = 0;
|
|
w3[2] = 0;
|
|
w3[3] = (64 + 32) * 8;
|
|
|
|
hmac_sha256_run_V (w0, w1, w2, w3, ipad, opad, dgst);
|
|
|
|
out[0] ^= dgst[0];
|
|
out[1] ^= dgst[1];
|
|
out[2] ^= dgst[2];
|
|
out[3] ^= dgst[3];
|
|
out[4] ^= dgst[4];
|
|
out[5] ^= dgst[5];
|
|
out[6] ^= dgst[6];
|
|
out[7] ^= dgst[7];
|
|
}
|
|
|
|
unpackv (tmps, dgst, gid, i + 0, dgst[0]);
|
|
unpackv (tmps, dgst, gid, i + 1, dgst[1]);
|
|
unpackv (tmps, dgst, gid, i + 2, dgst[2]);
|
|
unpackv (tmps, dgst, gid, i + 3, dgst[3]);
|
|
unpackv (tmps, dgst, gid, i + 4, dgst[4]);
|
|
unpackv (tmps, dgst, gid, i + 5, dgst[5]);
|
|
unpackv (tmps, dgst, gid, i + 6, dgst[6]);
|
|
unpackv (tmps, dgst, gid, i + 7, dgst[7]);
|
|
|
|
unpackv (tmps, out, gid, i + 0, out[0]);
|
|
unpackv (tmps, out, gid, i + 1, out[1]);
|
|
unpackv (tmps, out, gid, i + 2, out[2]);
|
|
unpackv (tmps, out, gid, i + 3, out[3]);
|
|
unpackv (tmps, out, gid, i + 4, out[4]);
|
|
unpackv (tmps, out, gid, i + 5, out[5]);
|
|
unpackv (tmps, out, gid, i + 6, out[6]);
|
|
unpackv (tmps, out, gid, i + 7, out[7]);
|
|
}
|
|
}
|
|
|
|
KERNEL_FQ void m24420_comp (KERN_ATTR_TMPS_ESALT (pkcs_sha256_tmp_t, pkcs_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];
|
|
}
|
|
|
|
LOCAL_VK u32 s_SPtrans[8][64];
|
|
LOCAL_VK u32 s_skb[8][64];
|
|
|
|
for (u32 i = lid; i < 64; i += lsz)
|
|
{
|
|
s_SPtrans[0][i] = c_SPtrans[0][i];
|
|
s_SPtrans[1][i] = c_SPtrans[1][i];
|
|
s_SPtrans[2][i] = c_SPtrans[2][i];
|
|
s_SPtrans[3][i] = c_SPtrans[3][i];
|
|
s_SPtrans[4][i] = c_SPtrans[4][i];
|
|
s_SPtrans[5][i] = c_SPtrans[5][i];
|
|
s_SPtrans[6][i] = c_SPtrans[6][i];
|
|
s_SPtrans[7][i] = c_SPtrans[7][i];
|
|
|
|
s_skb[0][i] = c_skb[0][i];
|
|
s_skb[1][i] = c_skb[1][i];
|
|
s_skb[2][i] = c_skb[2][i];
|
|
s_skb[3][i] = c_skb[3][i];
|
|
s_skb[4][i] = c_skb[4][i];
|
|
s_skb[5][i] = c_skb[5][i];
|
|
s_skb[6][i] = c_skb[6][i];
|
|
s_skb[7][i] = c_skb[7][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;
|
|
|
|
CONSTANT_AS u32a (*s_SPtrans)[64] = c_SPtrans;
|
|
CONSTANT_AS u32a (*s_skb)[64] = c_skb;
|
|
|
|
#endif
|
|
|
|
if (gid >= gid_max) return;
|
|
|
|
u32 ukey[8];
|
|
|
|
ukey[0] = tmps[gid].out[0];
|
|
ukey[1] = tmps[gid].out[1];
|
|
ukey[2] = tmps[gid].out[2];
|
|
ukey[3] = tmps[gid].out[3];
|
|
ukey[4] = tmps[gid].out[4];
|
|
ukey[5] = tmps[gid].out[5];
|
|
ukey[6] = tmps[gid].out[6];
|
|
ukey[7] = tmps[gid].out[7];
|
|
|
|
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;
|
|
|
|
const int cipher = esalt_bufs[DIGESTS_OFFSET].cipher;
|
|
|
|
u32 iv[4];
|
|
|
|
u32 enc[4];
|
|
u32 dec[4];
|
|
|
|
if (cipher == 1)
|
|
{
|
|
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]);
|
|
|
|
u32 K0[16];
|
|
u32 K1[16];
|
|
u32 K2[16];
|
|
u32 K3[16];
|
|
u32 K4[16];
|
|
u32 K5[16];
|
|
|
|
_des_crypt_keysetup (ukey[0], ukey[1], K0, K1, s_skb);
|
|
_des_crypt_keysetup (ukey[2], ukey[3], K2, K3, s_skb);
|
|
_des_crypt_keysetup (ukey[4], ukey[5], K4, K5, s_skb);
|
|
|
|
// first check the padding
|
|
|
|
iv[0] = esalt_bufs[DIGESTS_OFFSET].data_buf[last_pad_elem - 3];
|
|
iv[1] = esalt_bufs[DIGESTS_OFFSET].data_buf[last_pad_elem - 2];
|
|
|
|
enc[0] = esalt_bufs[DIGESTS_OFFSET].data_buf[last_pad_elem - 1];
|
|
enc[1] = esalt_bufs[DIGESTS_OFFSET].data_buf[last_pad_elem - 0];
|
|
|
|
u32 p1[2];
|
|
u32 p2[2];
|
|
|
|
_des_crypt_decrypt (p1, enc, K4, K5, s_SPtrans);
|
|
_des_crypt_encrypt (p2, p1, K2, K3, s_SPtrans);
|
|
_des_crypt_decrypt (dec, p2, K0, K1, s_SPtrans);
|
|
|
|
dec[0] ^= iv[0];
|
|
dec[1] ^= iv[1];
|
|
|
|
const int paddingv = pkcs_padding_bs8 (dec, 8);
|
|
|
|
if (paddingv == -1) return;
|
|
|
|
// second check (naive code) ASN.1 structure
|
|
|
|
iv[0] = esalt_bufs[DIGESTS_OFFSET].iv_buf[0];
|
|
iv[1] = esalt_bufs[DIGESTS_OFFSET].iv_buf[1];
|
|
|
|
enc[0] = esalt_bufs[DIGESTS_OFFSET].data_buf[0];
|
|
enc[1] = esalt_bufs[DIGESTS_OFFSET].data_buf[1];
|
|
|
|
_des_crypt_decrypt (p1, enc, K4, K5, s_SPtrans);
|
|
_des_crypt_encrypt (p2, p1, K2, K3, s_SPtrans);
|
|
_des_crypt_decrypt (dec, p2, K0, K1, s_SPtrans);
|
|
|
|
dec[0] ^= iv[0];
|
|
dec[1] ^= iv[1];
|
|
|
|
const int real_len = (data_len - 8) + paddingv;
|
|
|
|
const int asn1_ok = asn1_detect (dec, real_len);
|
|
|
|
if (asn1_ok == 0) return;
|
|
}
|
|
else if (cipher == 2)
|
|
{
|
|
u32 ks[44];
|
|
|
|
AES128_set_decrypt_key (ks, ukey, s_te0, s_te1, s_te2, s_te3, s_td0, s_td1, s_td2, s_td3);
|
|
|
|
// first check the padding
|
|
|
|
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];
|
|
|
|
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];
|
|
|
|
aes128_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) return;
|
|
|
|
// second check (naive code) ASN.1 structure
|
|
|
|
iv[0] = esalt_bufs[DIGESTS_OFFSET].iv_buf[0];
|
|
iv[1] = esalt_bufs[DIGESTS_OFFSET].iv_buf[1];
|
|
iv[2] = esalt_bufs[DIGESTS_OFFSET].iv_buf[2];
|
|
iv[3] = esalt_bufs[DIGESTS_OFFSET].iv_buf[3];
|
|
|
|
enc[0] = esalt_bufs[DIGESTS_OFFSET].data_buf[0];
|
|
enc[1] = esalt_bufs[DIGESTS_OFFSET].data_buf[1];
|
|
enc[2] = esalt_bufs[DIGESTS_OFFSET].data_buf[2];
|
|
enc[3] = esalt_bufs[DIGESTS_OFFSET].data_buf[3];
|
|
|
|
aes128_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 real_len = (data_len - 16) + paddingv;
|
|
|
|
const int asn1_ok = asn1_detect (dec, real_len);
|
|
|
|
if (asn1_ok == 0) return;
|
|
}
|
|
else if (cipher == 3)
|
|
{
|
|
u32 ks[52];
|
|
|
|
AES192_set_decrypt_key (ks, ukey, s_te0, s_te1, s_te2, s_te3, s_td0, s_td1, s_td2, s_td3);
|
|
|
|
// first check the padding
|
|
|
|
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];
|
|
|
|
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];
|
|
|
|
aes192_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) return;
|
|
|
|
// second check (naive code) ASN.1 structure
|
|
|
|
iv[0] = esalt_bufs[DIGESTS_OFFSET].iv_buf[0];
|
|
iv[1] = esalt_bufs[DIGESTS_OFFSET].iv_buf[1];
|
|
iv[2] = esalt_bufs[DIGESTS_OFFSET].iv_buf[2];
|
|
iv[3] = esalt_bufs[DIGESTS_OFFSET].iv_buf[3];
|
|
|
|
enc[0] = esalt_bufs[DIGESTS_OFFSET].data_buf[0];
|
|
enc[1] = esalt_bufs[DIGESTS_OFFSET].data_buf[1];
|
|
enc[2] = esalt_bufs[DIGESTS_OFFSET].data_buf[2];
|
|
enc[3] = esalt_bufs[DIGESTS_OFFSET].data_buf[3];
|
|
|
|
aes192_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 real_len = (data_len - 16) + paddingv;
|
|
|
|
const int asn1_ok = asn1_detect (dec, real_len);
|
|
|
|
if (asn1_ok == 0) return;
|
|
}
|
|
else if (cipher == 4)
|
|
{
|
|
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);
|
|
|
|
// first check the padding
|
|
|
|
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];
|
|
|
|
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];
|
|
|
|
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) return;
|
|
|
|
// second check (naive code) ASN.1 structure
|
|
|
|
iv[0] = esalt_bufs[DIGESTS_OFFSET].iv_buf[0];
|
|
iv[1] = esalt_bufs[DIGESTS_OFFSET].iv_buf[1];
|
|
iv[2] = esalt_bufs[DIGESTS_OFFSET].iv_buf[2];
|
|
iv[3] = esalt_bufs[DIGESTS_OFFSET].iv_buf[3];
|
|
|
|
enc[0] = esalt_bufs[DIGESTS_OFFSET].data_buf[0];
|
|
enc[1] = esalt_bufs[DIGESTS_OFFSET].data_buf[1];
|
|
enc[2] = esalt_bufs[DIGESTS_OFFSET].data_buf[2];
|
|
enc[3] = esalt_bufs[DIGESTS_OFFSET].data_buf[3];
|
|
|
|
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 real_len = (data_len - 16) + paddingv;
|
|
|
|
const int asn1_ok = asn1_detect (dec, real_len);
|
|
|
|
if (asn1_ok == 0) return;
|
|
}
|
|
else
|
|
{
|
|
return;
|
|
}
|
|
|
|
const u32 r0 = esalt_bufs[DIGESTS_OFFSET].data_buf[0];
|
|
const u32 r1 = esalt_bufs[DIGESTS_OFFSET].data_buf[1];
|
|
const u32 r2 = esalt_bufs[DIGESTS_OFFSET].data_buf[2];
|
|
const u32 r3 = esalt_bufs[DIGESTS_OFFSET].data_buf[3];
|
|
|
|
#define il_pos 0
|
|
|
|
#ifdef KERNEL_STATIC
|
|
#include COMPARE_M
|
|
#endif
|
|
}
|