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422 lines
9.1 KiB
Common Lisp
422 lines
9.1 KiB
Common Lisp
/**
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* Author......: See docs/credits.txt
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* License.....: MIT
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*/
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//shared mem too small
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//#define NEW_SIMD_CODE
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#ifdef KERNEL_STATIC
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#include "inc_vendor.h"
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#include "inc_types.h"
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#include "inc_common.cl"
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#include "inc_rp.h"
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#include "inc_rp.cl"
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#include "inc_hash_md4.cl"
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#include "inc_hash_md5.cl"
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#endif
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typedef struct krb5pa
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{
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u32 user[16];
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u32 realm[16];
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u32 salt[32];
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u32 timestamp[16];
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u32 checksum[4];
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} krb5pa_t;
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typedef struct
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{
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u8 S[256];
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u32 wtf_its_faster;
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} RC4_KEY;
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DECLSPEC static void swap (LOCAL_AS RC4_KEY *rc4_key, const u8 i, const u8 j)
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{
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u8 tmp;
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tmp = rc4_key->S[i];
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rc4_key->S[i] = rc4_key->S[j];
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rc4_key->S[j] = tmp;
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}
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DECLSPEC static void rc4_init_16 (LOCAL_AS RC4_KEY *rc4_key, const u32 *data)
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{
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u32 v = 0x03020100;
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u32 a = 0x04040404;
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LOCAL_AS u32 *ptr = (LOCAL_AS u32 *) rc4_key->S;
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#ifdef _unroll
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#pragma unroll
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#endif
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for (u32 i = 0; i < 64; i++)
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{
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*ptr++ = v; v += a;
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}
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u32 j = 0;
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for (u32 i = 0; i < 16; i++)
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{
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u32 idx = i * 16;
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u32 v;
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v = data[0];
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j += rc4_key->S[idx] + (v >> 0); swap (rc4_key, idx, j); idx++;
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j += rc4_key->S[idx] + (v >> 8); swap (rc4_key, idx, j); idx++;
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j += rc4_key->S[idx] + (v >> 16); swap (rc4_key, idx, j); idx++;
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j += rc4_key->S[idx] + (v >> 24); swap (rc4_key, idx, j); idx++;
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v = data[1];
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j += rc4_key->S[idx] + (v >> 0); swap (rc4_key, idx, j); idx++;
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j += rc4_key->S[idx] + (v >> 8); swap (rc4_key, idx, j); idx++;
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j += rc4_key->S[idx] + (v >> 16); swap (rc4_key, idx, j); idx++;
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j += rc4_key->S[idx] + (v >> 24); swap (rc4_key, idx, j); idx++;
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v = data[2];
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j += rc4_key->S[idx] + (v >> 0); swap (rc4_key, idx, j); idx++;
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j += rc4_key->S[idx] + (v >> 8); swap (rc4_key, idx, j); idx++;
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j += rc4_key->S[idx] + (v >> 16); swap (rc4_key, idx, j); idx++;
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j += rc4_key->S[idx] + (v >> 24); swap (rc4_key, idx, j); idx++;
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v = data[3];
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j += rc4_key->S[idx] + (v >> 0); swap (rc4_key, idx, j); idx++;
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j += rc4_key->S[idx] + (v >> 8); swap (rc4_key, idx, j); idx++;
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j += rc4_key->S[idx] + (v >> 16); swap (rc4_key, idx, j); idx++;
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j += rc4_key->S[idx] + (v >> 24); swap (rc4_key, idx, j); idx++;
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}
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}
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DECLSPEC static u8 rc4_next_16 (LOCAL_AS RC4_KEY *rc4_key, u8 i, u8 j, const u32 *in, u32 *out)
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{
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#ifdef _unroll
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#pragma unroll
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#endif
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for (u32 k = 0; k < 4; k++)
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{
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u32 xor4 = 0;
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u8 idx;
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i += 1;
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j += rc4_key->S[i];
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swap (rc4_key, i, j);
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idx = rc4_key->S[i] + rc4_key->S[j];
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xor4 |= rc4_key->S[idx] << 0;
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i += 1;
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j += rc4_key->S[i];
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swap (rc4_key, i, j);
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idx = rc4_key->S[i] + rc4_key->S[j];
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xor4 |= rc4_key->S[idx] << 8;
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i += 1;
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j += rc4_key->S[i];
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swap (rc4_key, i, j);
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idx = rc4_key->S[i] + rc4_key->S[j];
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xor4 |= rc4_key->S[idx] << 16;
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i += 1;
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j += rc4_key->S[i];
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swap (rc4_key, i, j);
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idx = rc4_key->S[i] + rc4_key->S[j];
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xor4 |= rc4_key->S[idx] << 24;
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out[k] = in[k] ^ xor4;
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}
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return j;
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}
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DECLSPEC static int decrypt_and_check (LOCAL_AS RC4_KEY *rc4_key, u32 *data, u32 *timestamp_ct)
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{
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rc4_init_16 (rc4_key, data);
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u32 out[4];
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u8 j = 0;
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j = rc4_next_16 (rc4_key, 0, j, timestamp_ct + 0, out);
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if ((out[3] & 0xffff0000) != 0x30320000) return 0;
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j = rc4_next_16 (rc4_key, 16, j, timestamp_ct + 4, out);
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if (((out[0] & 0xff) < '0') || ((out[0] & 0xff) > '9')) return 0; out[0] >>= 8;
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if (((out[0] & 0xff) < '0') || ((out[0] & 0xff) > '9')) return 0; out[0] >>= 8;
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if (((out[0] & 0xff) < '0') || ((out[0] & 0xff) > '9')) return 0; out[0] >>= 8;
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if (((out[0] & 0xff) < '0') || ((out[0] & 0xff) > '9')) return 0;
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if (((out[1] & 0xff) < '0') || ((out[1] & 0xff) > '9')) return 0; out[1] >>= 8;
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if (((out[1] & 0xff) < '0') || ((out[1] & 0xff) > '9')) return 0; out[1] >>= 8;
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if (((out[1] & 0xff) < '0') || ((out[1] & 0xff) > '9')) return 0; out[1] >>= 8;
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if (((out[1] & 0xff) < '0') || ((out[1] & 0xff) > '9')) return 0;
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if (((out[2] & 0xff) < '0') || ((out[2] & 0xff) > '9')) return 0; out[2] >>= 8;
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if (((out[2] & 0xff) < '0') || ((out[2] & 0xff) > '9')) return 0; out[2] >>= 8;
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if (((out[2] & 0xff) < '0') || ((out[2] & 0xff) > '9')) return 0; out[2] >>= 8;
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if (((out[2] & 0xff) < '0') || ((out[2] & 0xff) > '9')) return 0;
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return 1;
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}
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DECLSPEC static void kerb_prepare (const u32 *K, const u32 *checksum, u32 *digest)
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{
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// K1=MD5_HMAC(K,1); with 1 encoded as little indian on 4 bytes (01000000 in hexa);
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u32 w0[4];
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u32 w1[4];
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u32 w2[4];
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u32 w3[4];
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w0[0] = K[0];
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w0[1] = K[1];
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w0[2] = K[2];
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w0[3] = K[3];
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w1[0] = 0;
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w1[1] = 0;
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w1[2] = 0;
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w1[3] = 0;
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w2[0] = 0;
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w2[1] = 0;
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w2[2] = 0;
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w2[3] = 0;
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w3[0] = 0;
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w3[1] = 0;
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w3[2] = 0;
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w3[3] = 0;
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md5_hmac_ctx_t ctx1;
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md5_hmac_init_64 (&ctx1, w0, w1, w2, w3);
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w0[0] = 1;
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w0[1] = 0;
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w0[2] = 0;
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w0[3] = 0;
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w1[0] = 0;
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w1[1] = 0;
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w1[2] = 0;
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w1[3] = 0;
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w2[0] = 0;
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w2[1] = 0;
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w2[2] = 0;
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w2[3] = 0;
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w3[0] = 0;
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w3[1] = 0;
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w3[2] = 0;
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w3[3] = 0;
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md5_hmac_update_64 (&ctx1, w0, w1, w2, w3, 4);
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md5_hmac_final (&ctx1);
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w0[0] = ctx1.opad.h[0];
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w0[1] = ctx1.opad.h[1];
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w0[2] = ctx1.opad.h[2];
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w0[3] = ctx1.opad.h[3];
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w1[0] = 0;
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w1[1] = 0;
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w1[2] = 0;
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w1[3] = 0;
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w2[0] = 0;
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w2[1] = 0;
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w2[2] = 0;
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w2[3] = 0;
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w3[0] = 0;
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w3[1] = 0;
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w3[2] = 0;
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w3[3] = 0;
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md5_hmac_ctx_t ctx;
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md5_hmac_init_64 (&ctx, w0, w1, w2, w3);
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w0[0] = checksum[0];
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w0[1] = checksum[1];
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w0[2] = checksum[2];
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w0[3] = checksum[3];
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w1[0] = 0;
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w1[1] = 0;
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w1[2] = 0;
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w1[3] = 0;
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w2[0] = 0;
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w2[1] = 0;
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w2[2] = 0;
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w2[3] = 0;
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w3[0] = 0;
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w3[1] = 0;
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w3[2] = 0;
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w3[3] = 0;
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md5_hmac_update_64 (&ctx, w0, w1, w2, w3, 16);
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md5_hmac_final (&ctx);
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digest[0] = ctx.opad.h[0];
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digest[1] = ctx.opad.h[1];
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digest[2] = ctx.opad.h[2];
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digest[3] = ctx.opad.h[3];
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}
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KERNEL_FQ void m07500_mxx (KERN_ATTR_RULES_ESALT (krb5pa_t))
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{
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/**
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* modifier
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*/
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const u64 lid = get_local_id (0);
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const u64 gid = get_global_id (0);
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if (gid >= gid_max) return;
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/**
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* base
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*/
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COPY_PW (pws[gid]);
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LOCAL_AS RC4_KEY rc4_keys[64];
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LOCAL_AS RC4_KEY *rc4_key = &rc4_keys[lid];
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u32 checksum[4];
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checksum[0] = esalt_bufs[digests_offset].checksum[0];
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checksum[1] = esalt_bufs[digests_offset].checksum[1];
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checksum[2] = esalt_bufs[digests_offset].checksum[2];
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checksum[3] = esalt_bufs[digests_offset].checksum[3];
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u32 timestamp_ct[8];
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timestamp_ct[0] = esalt_bufs[digests_offset].timestamp[0];
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timestamp_ct[1] = esalt_bufs[digests_offset].timestamp[1];
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timestamp_ct[2] = esalt_bufs[digests_offset].timestamp[2];
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timestamp_ct[3] = esalt_bufs[digests_offset].timestamp[3];
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timestamp_ct[4] = esalt_bufs[digests_offset].timestamp[4];
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timestamp_ct[5] = esalt_bufs[digests_offset].timestamp[5];
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timestamp_ct[6] = esalt_bufs[digests_offset].timestamp[6];
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timestamp_ct[7] = esalt_bufs[digests_offset].timestamp[7];
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/**
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* loop
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*/
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for (u32 il_pos = 0; il_pos < il_cnt; il_pos++)
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{
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pw_t tmp = PASTE_PW;
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tmp.pw_len = apply_rules (rules_buf[il_pos].cmds, tmp.i, tmp.pw_len);
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md4_ctx_t ctx;
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md4_init (&ctx);
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md4_update_utf16le (&ctx, tmp.i, tmp.pw_len);
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md4_final (&ctx);
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u32 digest[4];
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kerb_prepare (ctx.h, checksum, digest);
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if (decrypt_and_check (rc4_key, digest, timestamp_ct) == 1)
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{
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if (atomic_inc (&hashes_shown[digests_offset]) == 0)
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{
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mark_hash (plains_buf, d_return_buf, salt_pos, digests_cnt, 0, digests_offset + 0, gid, il_pos, 0, 0);
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}
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}
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}
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}
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KERNEL_FQ void m07500_sxx (KERN_ATTR_RULES_ESALT (krb5pa_t))
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{
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/**
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* modifier
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*/
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const u64 lid = get_local_id (0);
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const u64 gid = get_global_id (0);
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if (gid >= gid_max) return;
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/**
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* base
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*/
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COPY_PW (pws[gid]);
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LOCAL_AS RC4_KEY rc4_keys[64];
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LOCAL_AS RC4_KEY *rc4_key = &rc4_keys[lid];
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u32 checksum[4];
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checksum[0] = esalt_bufs[digests_offset].checksum[0];
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checksum[1] = esalt_bufs[digests_offset].checksum[1];
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checksum[2] = esalt_bufs[digests_offset].checksum[2];
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checksum[3] = esalt_bufs[digests_offset].checksum[3];
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u32 timestamp_ct[8];
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timestamp_ct[0] = esalt_bufs[digests_offset].timestamp[0];
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timestamp_ct[1] = esalt_bufs[digests_offset].timestamp[1];
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timestamp_ct[2] = esalt_bufs[digests_offset].timestamp[2];
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timestamp_ct[3] = esalt_bufs[digests_offset].timestamp[3];
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timestamp_ct[4] = esalt_bufs[digests_offset].timestamp[4];
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timestamp_ct[5] = esalt_bufs[digests_offset].timestamp[5];
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timestamp_ct[6] = esalt_bufs[digests_offset].timestamp[6];
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timestamp_ct[7] = esalt_bufs[digests_offset].timestamp[7];
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/**
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* loop
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*/
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for (u32 il_pos = 0; il_pos < il_cnt; il_pos++)
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{
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pw_t tmp = PASTE_PW;
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tmp.pw_len = apply_rules (rules_buf[il_pos].cmds, tmp.i, tmp.pw_len);
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md4_ctx_t ctx;
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md4_init (&ctx);
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md4_update_utf16le (&ctx, tmp.i, tmp.pw_len);
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md4_final (&ctx);
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u32 digest[4];
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kerb_prepare (ctx.h, checksum, digest);
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if (decrypt_and_check (rc4_key, digest, timestamp_ct) == 1)
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{
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if (atomic_inc (&hashes_shown[digests_offset]) == 0)
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{
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mark_hash (plains_buf, d_return_buf, salt_pos, digests_cnt, 0, digests_offset + 0, gid, il_pos, 0, 0);
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}
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}
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}
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}
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