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hashcat/OpenCL/m02500.cl
jsteube ca1b6492e7 Some code simplify on AES CMAC
2017-09-19 01:12:29 +02:00

889 lines
22 KiB
Common Lisp
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/**
* Author......: See docs/credits.txt
* License.....: MIT
*/
#define NEW_SIMD_CODE
#include "inc_vendor.cl"
#include "inc_hash_constants.h"
#include "inc_hash_functions.cl"
#include "inc_types.cl"
#include "inc_common.cl"
#include "inc_simd.cl"
#include "inc_hash_md5.cl"
#include "inc_hash_sha1.cl"
#include "inc_hash_sha256.cl"
#include "inc_cipher_aes.cl"
#define COMPARE_S "inc_comp_single.cl"
#define COMPARE_M "inc_comp_multi.cl"
void hmac_sha1_run_V (u32x w0[4], u32x w1[4], u32x w2[4], u32x w3[4], u32x ipad[5], u32x opad[5], u32x digest[5])
{
digest[0] = ipad[0];
digest[1] = ipad[1];
digest[2] = ipad[2];
digest[3] = ipad[3];
digest[4] = ipad[4];
sha1_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] = 0x80000000;
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] = (64 + 20) * 8;
digest[0] = opad[0];
digest[1] = opad[1];
digest[2] = opad[2];
digest[3] = opad[3];
digest[4] = opad[4];
sha1_transform_vector (w0, w1, w2, w3, digest);
}
__kernel void m02500_init (__global pw_t *pws, __global const kernel_rule_t *rules_buf, __global const pw_t *combs_buf, __global const bf_t *bfs_buf, __global wpa_tmp_t *tmps, __global void *hooks, __global const u32 *bitmaps_buf_s1_a, __global const u32 *bitmaps_buf_s1_b, __global const u32 *bitmaps_buf_s1_c, __global const u32 *bitmaps_buf_s1_d, __global const u32 *bitmaps_buf_s2_a, __global const u32 *bitmaps_buf_s2_b, __global const u32 *bitmaps_buf_s2_c, __global const u32 *bitmaps_buf_s2_d, __global plain_t *plains_buf, __global const digest_t *digests_buf, __global u32 *hashes_shown, __global const salt_t *salt_bufs, __global const wpa_t *wpa_bufs, __global u32 *d_return_buf, __global u32 *d_scryptV0_buf, __global u32 *d_scryptV1_buf, __global u32 *d_scryptV2_buf, __global u32 *d_scryptV3_buf, const u32 bitmap_mask, const u32 bitmap_shift1, const u32 bitmap_shift2, const u32 salt_pos, const u32 loop_pos, const u32 loop_cnt, const u32 il_cnt, const u32 digests_cnt, const u32 digests_offset, const u32 combs_mode, const u64 gid_max)
{
/**
* base
*/
const u64 gid = get_global_id (0);
if (gid >= gid_max) return;
sha1_hmac_ctx_t sha1_hmac_ctx;
sha1_hmac_init_global_swap (&sha1_hmac_ctx, pws[gid].i, pws[gid].pw_len);
tmps[gid].ipad[0] = sha1_hmac_ctx.ipad.h[0];
tmps[gid].ipad[1] = sha1_hmac_ctx.ipad.h[1];
tmps[gid].ipad[2] = sha1_hmac_ctx.ipad.h[2];
tmps[gid].ipad[3] = sha1_hmac_ctx.ipad.h[3];
tmps[gid].ipad[4] = sha1_hmac_ctx.ipad.h[4];
tmps[gid].opad[0] = sha1_hmac_ctx.opad.h[0];
tmps[gid].opad[1] = sha1_hmac_ctx.opad.h[1];
tmps[gid].opad[2] = sha1_hmac_ctx.opad.h[2];
tmps[gid].opad[3] = sha1_hmac_ctx.opad.h[3];
tmps[gid].opad[4] = sha1_hmac_ctx.opad.h[4];
sha1_hmac_update_global_swap (&sha1_hmac_ctx, salt_bufs[salt_pos].salt_buf, salt_bufs[salt_pos].salt_len);
for (u32 i = 0, j = 1; i < 8; i += 5, j += 1)
{
sha1_hmac_ctx_t sha1_hmac_ctx2 = sha1_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;
sha1_hmac_update_64 (&sha1_hmac_ctx2, w0, w1, w2, w3, 4);
sha1_hmac_final (&sha1_hmac_ctx2);
tmps[gid].dgst[i + 0] = sha1_hmac_ctx2.opad.h[0];
tmps[gid].dgst[i + 1] = sha1_hmac_ctx2.opad.h[1];
tmps[gid].dgst[i + 2] = sha1_hmac_ctx2.opad.h[2];
tmps[gid].dgst[i + 3] = sha1_hmac_ctx2.opad.h[3];
tmps[gid].dgst[i + 4] = sha1_hmac_ctx2.opad.h[4];
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];
}
}
__kernel void m02500_loop (__global pw_t *pws, __global const kernel_rule_t *rules_buf, __global const pw_t *combs_buf, __global const bf_t *bfs_buf, __global wpa_tmp_t *tmps, __global void *hooks, __global const u32 *bitmaps_buf_s1_a, __global const u32 *bitmaps_buf_s1_b, __global const u32 *bitmaps_buf_s1_c, __global const u32 *bitmaps_buf_s1_d, __global const u32 *bitmaps_buf_s2_a, __global const u32 *bitmaps_buf_s2_b, __global const u32 *bitmaps_buf_s2_c, __global const u32 *bitmaps_buf_s2_d, __global plain_t *plains_buf, __global const digest_t *digests_buf, __global u32 *hashes_shown, __global const salt_t *salt_bufs, __global const wpa_t *wpa_bufs, __global u32 *d_return_buf, __global u32 *d_scryptV0_buf, __global u32 *d_scryptV1_buf, __global u32 *d_scryptV2_buf, __global u32 *d_scryptV3_buf, const u32 bitmap_mask, const u32 bitmap_shift1, const u32 bitmap_shift2, const u32 salt_pos, const u32 loop_pos, const u32 loop_cnt, const u32 il_cnt, const u32 digests_cnt, const u32 digests_offset, const u32 combs_mode, const u64 gid_max)
{
const u64 gid = get_global_id (0);
if ((gid * VECT_SIZE) >= gid_max) return;
u32x ipad[5];
u32x opad[5];
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);
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);
for (u32 i = 0; i < 8; i += 5)
{
u32x dgst[5];
u32x out[5];
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);
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);
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] = 0x80000000;
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] = (64 + 20) * 8;
hmac_sha1_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];
}
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, 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]);
}
}
__kernel void m02500_comp (__global pw_t *pws, __global const kernel_rule_t *rules_buf, __global const pw_t *combs_buf, __global const bf_t *bfs_buf, __global wpa_tmp_t *tmps, __global void *hooks, __global const u32 *bitmaps_buf_s1_a, __global const u32 *bitmaps_buf_s1_b, __global const u32 *bitmaps_buf_s1_c, __global const u32 *bitmaps_buf_s1_d, __global const u32 *bitmaps_buf_s2_a, __global const u32 *bitmaps_buf_s2_b, __global const u32 *bitmaps_buf_s2_c, __global const u32 *bitmaps_buf_s2_d, __global plain_t *plains_buf, __global const digest_t *digests_buf, __global u32 *hashes_shown, __global const salt_t *salt_bufs, __global const wpa_t *wpa_bufs, __global u32 *d_return_buf, __global u32 *d_scryptV0_buf, __global u32 *d_scryptV1_buf, __global u32 *d_scryptV2_buf, __global u32 *d_scryptV3_buf, const u32 bitmap_mask, const u32 bitmap_shift1, const u32 bitmap_shift2, const u32 salt_pos, const u32 loop_pos, const u32 loop_cnt, const u32 il_cnt, const u32 digests_cnt, const u32 digests_offset, const u32 combs_mode, const u64 gid_max)
{
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 u32 s_td0[256];
__local u32 s_td1[256];
__local u32 s_td2[256];
__local u32 s_td3[256];
__local u32 s_td4[256];
__local u32 s_te0[256];
__local u32 s_te1[256];
__local u32 s_te2[256];
__local u32 s_te3[256];
__local 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];
}
barrier (CLK_LOCAL_MEM_FENCE);
#else
__constant u32a *s_td0 = td0;
__constant u32a *s_td1 = td1;
__constant u32a *s_td2 = td2;
__constant u32a *s_td3 = td3;
__constant u32a *s_td4 = td4;
__constant u32a *s_te0 = te0;
__constant u32a *s_te1 = te1;
__constant u32a *s_te2 = te2;
__constant u32a *s_te3 = te3;
__constant u32a *s_te4 = te4;
#endif
if (gid >= gid_max) return;
u32 out[8];
out[0] = tmps[gid].out[0];
out[1] = tmps[gid].out[1];
out[2] = tmps[gid].out[2];
out[3] = tmps[gid].out[3];
out[4] = tmps[gid].out[4];
out[5] = tmps[gid].out[5];
out[6] = tmps[gid].out[6];
out[7] = tmps[gid].out[7];
const u32 digest_pos = loop_pos;
const u32 digest_cur = digests_offset + digest_pos;
__global const wpa_t *wpa = &wpa_bufs[digest_cur];
u32 pke[32];
pke[ 0] = wpa->pke[ 0];
pke[ 1] = wpa->pke[ 1];
pke[ 2] = wpa->pke[ 2];
pke[ 3] = wpa->pke[ 3];
pke[ 4] = wpa->pke[ 4];
pke[ 5] = wpa->pke[ 5];
pke[ 6] = wpa->pke[ 6];
pke[ 7] = wpa->pke[ 7];
pke[ 8] = wpa->pke[ 8];
pke[ 9] = wpa->pke[ 9];
pke[10] = wpa->pke[10];
pke[11] = wpa->pke[11];
pke[12] = wpa->pke[12];
pke[13] = wpa->pke[13];
pke[14] = wpa->pke[14];
pke[15] = wpa->pke[15];
pke[16] = wpa->pke[16];
pke[17] = wpa->pke[17];
pke[18] = wpa->pke[18];
pke[19] = wpa->pke[19];
pke[20] = wpa->pke[20];
pke[21] = wpa->pke[21];
pke[22] = wpa->pke[22];
pke[23] = wpa->pke[23];
pke[24] = wpa->pke[24];
pke[25] = wpa->pke[25];
pke[26] = wpa->pke[26];
pke[27] = wpa->pke[27];
pke[28] = wpa->pke[28];
pke[29] = wpa->pke[29];
pke[30] = wpa->pke[30];
pke[31] = wpa->pke[31];
u32 to;
if (wpa->nonce_compare < 0)
{
to = pke[15] << 24
| pke[16] >> 8;
}
else
{
to = pke[23] << 24
| pke[24] >> 8;
}
const u32 nonce_error_corrections = wpa->nonce_error_corrections;
for (u32 nonce_error_correction = 0; nonce_error_correction <= nonce_error_corrections; nonce_error_correction++)
{
u32 t = to;
t = swap32_S (t);
t -= nonce_error_corrections / 2;
t += nonce_error_correction;
t = swap32_S (t);
if (wpa->nonce_compare < 0)
{
pke[15] = (pke[15] & ~0x000000ff) | (t >> 24);
pke[16] = (pke[16] & ~0xffffff00) | (t << 8);
}
else
{
pke[23] = (pke[23] & ~0x000000ff) | (t >> 24);
pke[24] = (pke[24] & ~0xffffff00) | (t << 8);
}
u32 w0[4];
u32 w1[4];
u32 w2[4];
u32 w3[4];
w0[0] = out[0];
w0[1] = out[1];
w0[2] = out[2];
w0[3] = out[3];
w1[0] = out[4];
w1[1] = out[5];
w1[2] = out[6];
w1[3] = out[7];
w2[0] = 0;
w2[1] = 0;
w2[2] = 0;
w2[3] = 0;
w3[0] = 0;
w3[1] = 0;
w3[2] = 0;
w3[3] = 0;
u32 keymic[4];
if (wpa->keyver == 1)
{
sha1_hmac_ctx_t ctx1;
sha1_hmac_init_64 (&ctx1, w0, w1, w2, w3);
sha1_hmac_update (&ctx1, pke, 100);
sha1_hmac_final (&ctx1);
u32 digest[4];
digest[0] = ctx1.opad.h[0];
digest[1] = ctx1.opad.h[1];
digest[2] = ctx1.opad.h[2];
digest[3] = ctx1.opad.h[3];
u32 t0[4];
u32 t1[4];
u32 t2[4];
u32 t3[4];
t0[0] = swap32_S (digest[0]);
t0[1] = swap32_S (digest[1]);
t0[2] = swap32_S (digest[2]);
t0[3] = swap32_S (digest[3]);
t1[0] = 0;
t1[1] = 0;
t1[2] = 0;
t1[3] = 0;
t2[0] = 0;
t2[1] = 0;
t2[2] = 0;
t2[3] = 0;
t3[0] = 0;
t3[1] = 0;
t3[2] = 0;
t3[3] = 0;
md5_hmac_ctx_t ctx2;
md5_hmac_init_64 (&ctx2, t0, t1, t2, t3);
md5_hmac_update_global (&ctx2, wpa->eapol, wpa->eapol_len);
md5_hmac_final (&ctx2);
keymic[0] = ctx2.opad.h[0];
keymic[1] = ctx2.opad.h[1];
keymic[2] = ctx2.opad.h[2];
keymic[3] = ctx2.opad.h[3];
}
else if (wpa->keyver == 2)
{
sha1_hmac_ctx_t ctx1;
sha1_hmac_init_64 (&ctx1, w0, w1, w2, w3);
sha1_hmac_update (&ctx1, pke, 100);
sha1_hmac_final (&ctx1);
u32 digest[4];
digest[0] = ctx1.opad.h[0];
digest[1] = ctx1.opad.h[1];
digest[2] = ctx1.opad.h[2];
digest[3] = ctx1.opad.h[3];
u32 t0[4];
u32 t1[4];
u32 t2[4];
u32 t3[4];
t0[0] = digest[0];
t0[1] = digest[1];
t0[2] = digest[2];
t0[3] = digest[3];
t1[0] = 0;
t1[1] = 0;
t1[2] = 0;
t1[3] = 0;
t2[0] = 0;
t2[1] = 0;
t2[2] = 0;
t2[3] = 0;
t3[0] = 0;
t3[1] = 0;
t3[2] = 0;
t3[3] = 0;
sha1_hmac_ctx_t ctx2;
sha1_hmac_init_64 (&ctx2, t0, t1, t2, t3);
sha1_hmac_update_global (&ctx2, wpa->eapol, wpa->eapol_len);
sha1_hmac_final (&ctx2);
keymic[0] = ctx2.opad.h[0];
keymic[1] = ctx2.opad.h[1];
keymic[2] = ctx2.opad.h[2];
keymic[3] = ctx2.opad.h[3];
}
else if (wpa->keyver == 3)
{
sha256_hmac_ctx_t ctx1;
sha256_hmac_init_64 (&ctx1, w0, w1, w2, w3);
sha256_hmac_update (&ctx1, pke, 102);
sha256_hmac_final (&ctx1);
u32 digest[4];
digest[0] = swap32_S (ctx1.opad.h[0]);
digest[1] = swap32_S (ctx1.opad.h[1]);
digest[2] = swap32_S (ctx1.opad.h[2]);
digest[3] = swap32_S (ctx1.opad.h[3]);
// AES CMAC
u32 ks[44];
aes128_set_encrypt_key (ks, digest, s_te0, s_te1, s_te2, s_te3, s_te4);
u32 m[4];
m[0] = 0;
m[1] = 0;
m[2] = 0;
m[3] = 0;
u32 iv[4];
iv[0] = 0;
iv[1] = 0;
iv[2] = 0;
iv[3] = 0;
int eapol_left;
int eapol_idx;
for (eapol_left = wpa->eapol_len, eapol_idx = 0; eapol_left > 16; eapol_left -= 16, eapol_idx += 4)
{
m[0] = wpa->eapol[eapol_idx + 0] ^ iv[0];
m[1] = wpa->eapol[eapol_idx + 1] ^ iv[1];
m[2] = wpa->eapol[eapol_idx + 2] ^ iv[2];
m[3] = wpa->eapol[eapol_idx + 3] ^ iv[3];
aes128_encrypt (ks, m, iv, s_te0, s_te1, s_te2, s_te3, s_te4);
}
m[0] = wpa->eapol[eapol_idx + 0];
m[1] = wpa->eapol[eapol_idx + 1];
m[2] = wpa->eapol[eapol_idx + 2];
m[3] = wpa->eapol[eapol_idx + 3];
u32 k[4];
k[0] = 0;
k[1] = 0;
k[2] = 0;
k[3] = 0;
aes128_encrypt (ks, k, k, s_te0, s_te1, s_te2, s_te3, s_te4);
k[0] = swap32_S (k[0]);
k[1] = swap32_S (k[1]);
k[2] = swap32_S (k[2]);
k[3] = swap32_S (k[3]);
const u32 c1 = k[3] >> 31;
k[3] = (k[3] << 1) | (k[2] >> 31);
k[2] = (k[2] << 1) | (k[1] >> 31);
k[1] = (k[1] << 1) | (k[0] >> 31);
k[0] = (k[0] << 1);
k[0] ^= c1 * 0x87;
if (eapol_left < 16)
{
const u32 c2 = k[3] >> 31;
k[3] = (k[3] << 1) | (k[2] >> 31);
k[2] = (k[2] << 1) | (k[1] >> 31);
k[1] = (k[1] << 1) | (k[0] >> 31);
k[0] = (k[0] << 1);
k[0] ^= c2 * 0x87;
}
k[0] = swap32_S (k[0]);
k[1] = swap32_S (k[1]);
k[2] = swap32_S (k[2]);
k[3] = swap32_S (k[3]);
m[0] ^= k[0];
m[1] ^= k[1];
m[2] ^= k[2];
m[3] ^= k[3];
m[0] ^= iv[0];
m[1] ^= iv[1];
m[2] ^= iv[2];
m[3] ^= iv[3];
aes128_encrypt (ks, m, keymic, s_te0, s_te1, s_te2, s_te3, s_te4);
}
/**
* final compare
*/
if ((keymic[0] == wpa->keymic[0])
&& (keymic[1] == wpa->keymic[1])
&& (keymic[2] == wpa->keymic[2])
&& (keymic[3] == wpa->keymic[3]))
{
if (atomic_inc (&hashes_shown[digest_cur]) == 0)
{
mark_hash (plains_buf, d_return_buf, salt_pos, digests_cnt, digest_pos, digest_cur, gid, 0);
}
}
}
// the same code again, but with BE order for the t++
for (u32 nonce_error_correction = 0; nonce_error_correction <= nonce_error_corrections; nonce_error_correction++)
{
u32 t = to;
t -= nonce_error_corrections / 2;
t += nonce_error_correction;
if (t == to) continue; // we already had this checked in the LE loop
if (wpa->nonce_compare < 0)
{
pke[15] = (pke[15] & ~0x000000ff) | (t >> 24);
pke[16] = (pke[16] & ~0xffffff00) | (t << 8);
}
else
{
pke[23] = (pke[23] & ~0x000000ff) | (t >> 24);
pke[24] = (pke[24] & ~0xffffff00) | (t << 8);
}
u32 w0[4];
u32 w1[4];
u32 w2[4];
u32 w3[4];
w0[0] = out[0];
w0[1] = out[1];
w0[2] = out[2];
w0[3] = out[3];
w1[0] = out[4];
w1[1] = out[5];
w1[2] = out[6];
w1[3] = out[7];
w2[0] = 0;
w2[1] = 0;
w2[2] = 0;
w2[3] = 0;
w3[0] = 0;
w3[1] = 0;
w3[2] = 0;
w3[3] = 0;
u32 keymic[4];
if (wpa->keyver == 1)
{
sha1_hmac_ctx_t ctx1;
sha1_hmac_init_64 (&ctx1, w0, w1, w2, w3);
sha1_hmac_update (&ctx1, pke, 100);
sha1_hmac_final (&ctx1);
u32 digest[4];
digest[0] = ctx1.opad.h[0];
digest[1] = ctx1.opad.h[1];
digest[2] = ctx1.opad.h[2];
digest[3] = ctx1.opad.h[3];
u32 t0[4];
u32 t1[4];
u32 t2[4];
u32 t3[4];
t0[0] = swap32_S (digest[0]);
t0[1] = swap32_S (digest[1]);
t0[2] = swap32_S (digest[2]);
t0[3] = swap32_S (digest[3]);
t1[0] = 0;
t1[1] = 0;
t1[2] = 0;
t1[3] = 0;
t2[0] = 0;
t2[1] = 0;
t2[2] = 0;
t2[3] = 0;
t3[0] = 0;
t3[1] = 0;
t3[2] = 0;
t3[3] = 0;
md5_hmac_ctx_t ctx2;
md5_hmac_init_64 (&ctx2, t0, t1, t2, t3);
md5_hmac_update_global (&ctx2, wpa->eapol, wpa->eapol_len);
md5_hmac_final (&ctx2);
keymic[0] = ctx2.opad.h[0];
keymic[1] = ctx2.opad.h[1];
keymic[2] = ctx2.opad.h[2];
keymic[3] = ctx2.opad.h[3];
}
else if (wpa->keyver == 2)
{
sha1_hmac_ctx_t ctx1;
sha1_hmac_init_64 (&ctx1, w0, w1, w2, w3);
sha1_hmac_update (&ctx1, pke, 100);
sha1_hmac_final (&ctx1);
u32 digest[4];
digest[0] = ctx1.opad.h[0];
digest[1] = ctx1.opad.h[1];
digest[2] = ctx1.opad.h[2];
digest[3] = ctx1.opad.h[3];
u32 t0[4];
u32 t1[4];
u32 t2[4];
u32 t3[4];
t0[0] = digest[0];
t0[1] = digest[1];
t0[2] = digest[2];
t0[3] = digest[3];
t1[0] = 0;
t1[1] = 0;
t1[2] = 0;
t1[3] = 0;
t2[0] = 0;
t2[1] = 0;
t2[2] = 0;
t2[3] = 0;
t3[0] = 0;
t3[1] = 0;
t3[2] = 0;
t3[3] = 0;
sha1_hmac_ctx_t ctx2;
sha1_hmac_init_64 (&ctx2, t0, t1, t2, t3);
sha1_hmac_update_global (&ctx2, wpa->eapol, wpa->eapol_len);
sha1_hmac_final (&ctx2);
keymic[0] = ctx2.opad.h[0];
keymic[1] = ctx2.opad.h[1];
keymic[2] = ctx2.opad.h[2];
keymic[3] = ctx2.opad.h[3];
}
else if (wpa->keyver == 3)
{
sha256_hmac_ctx_t ctx1;
sha256_hmac_init_64 (&ctx1, w0, w1, w2, w3);
sha256_hmac_update (&ctx1, pke, 102);
sha256_hmac_final (&ctx1);
u32 digest[4];
digest[0] = swap32_S (ctx1.opad.h[0]);
digest[1] = swap32_S (ctx1.opad.h[1]);
digest[2] = swap32_S (ctx1.opad.h[2]);
digest[3] = swap32_S (ctx1.opad.h[3]);
// AES CMAC
u32 ks[44];
aes128_set_encrypt_key (ks, digest, s_te0, s_te1, s_te2, s_te3, s_te4);
u32 m[4];
m[0] = 0;
m[1] = 0;
m[2] = 0;
m[3] = 0;
u32 iv[4];
iv[0] = 0;
iv[1] = 0;
iv[2] = 0;
iv[3] = 0;
int eapol_left;
int eapol_idx;
for (eapol_left = wpa->eapol_len, eapol_idx = 0; eapol_left > 16; eapol_left -= 16, eapol_idx += 4)
{
m[0] = wpa->eapol[eapol_idx + 0] ^ iv[0];
m[1] = wpa->eapol[eapol_idx + 1] ^ iv[1];
m[2] = wpa->eapol[eapol_idx + 2] ^ iv[2];
m[3] = wpa->eapol[eapol_idx + 3] ^ iv[3];
aes128_encrypt (ks, m, iv, s_te0, s_te1, s_te2, s_te3, s_te4);
}
m[0] = wpa->eapol[eapol_idx + 0];
m[1] = wpa->eapol[eapol_idx + 1];
m[2] = wpa->eapol[eapol_idx + 2];
m[3] = wpa->eapol[eapol_idx + 3];
u32 k[4];
k[0] = 0;
k[1] = 0;
k[2] = 0;
k[3] = 0;
aes128_encrypt (ks, k, k, s_te0, s_te1, s_te2, s_te3, s_te4);
k[0] = swap32_S (k[0]);
k[1] = swap32_S (k[1]);
k[2] = swap32_S (k[2]);
k[3] = swap32_S (k[3]);
const u32 c1 = k[3] >> 31;
k[3] = (k[3] << 1) | (k[2] >> 31);
k[2] = (k[2] << 1) | (k[1] >> 31);
k[1] = (k[1] << 1) | (k[0] >> 31);
k[0] = (k[0] << 1);
k[0] ^= c1 * 0x87;
if (eapol_left < 16)
{
const u32 c2 = k[3] >> 31;
k[3] = (k[3] << 1) | (k[2] >> 31);
k[2] = (k[2] << 1) | (k[1] >> 31);
k[1] = (k[1] << 1) | (k[0] >> 31);
k[0] = (k[0] << 1);
k[0] ^= c2 * 0x87;
}
k[0] = swap32_S (k[0]);
k[1] = swap32_S (k[1]);
k[2] = swap32_S (k[2]);
k[3] = swap32_S (k[3]);
m[0] ^= k[0];
m[1] ^= k[1];
m[2] ^= k[2];
m[3] ^= k[3];
m[0] ^= iv[0];
m[1] ^= iv[1];
m[2] ^= iv[2];
m[3] ^= iv[3];
aes128_encrypt (ks, m, keymic, s_te0, s_te1, s_te2, s_te3, s_te4);
}
/**
* final compare
*/
if ((keymic[0] == wpa->keymic[0])
&& (keymic[1] == wpa->keymic[1])
&& (keymic[2] == wpa->keymic[2])
&& (keymic[3] == wpa->keymic[3]))
{
if (atomic_inc (&hashes_shown[digest_cur]) == 0)
{
mark_hash (plains_buf, d_return_buf, salt_pos, digests_cnt, digest_pos, digest_cur, gid, 0);
}
}
}
}
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