/** * Author......: See docs/credits.txt * License.....: MIT */ //shared mem too small //#define NEW_SIMD_CODE #ifdef KERNEL_STATIC #include "inc_vendor.h" #include "inc_types.h" #include "inc_common.cl" #include "inc_simd.cl" #include "inc_hash_md4.cl" #include "inc_hash_md5.cl" #endif typedef struct krb5pa { u32 user[16]; u32 realm[16]; u32 salt[32]; u32 timestamp[16]; u32 checksum[4]; } krb5pa_t; typedef struct { u8 S[256]; u32 wtf_its_faster; } RC4_KEY; DECLSPEC static void swap (LOCAL_AS RC4_KEY *rc4_key, const u8 i, const u8 j) { u8 tmp; tmp = rc4_key->S[i]; rc4_key->S[i] = rc4_key->S[j]; rc4_key->S[j] = tmp; } DECLSPEC static void rc4_init_16 (LOCAL_AS RC4_KEY *rc4_key, const u32 *data) { u32 v = 0x03020100; u32 a = 0x04040404; LOCAL_AS u32 *ptr = (LOCAL_AS u32 *) rc4_key->S; #ifdef _unroll #pragma unroll #endif for (u32 i = 0; i < 64; i++) { *ptr++ = v; v += a; } u32 j = 0; for (u32 i = 0; i < 16; i++) { u32 idx = i * 16; u32 v; v = data[0]; j += rc4_key->S[idx] + (v >> 0); swap (rc4_key, idx, j); idx++; j += rc4_key->S[idx] + (v >> 8); swap (rc4_key, idx, j); idx++; j += rc4_key->S[idx] + (v >> 16); swap (rc4_key, idx, j); idx++; j += rc4_key->S[idx] + (v >> 24); swap (rc4_key, idx, j); idx++; v = data[1]; j += rc4_key->S[idx] + (v >> 0); swap (rc4_key, idx, j); idx++; j += rc4_key->S[idx] + (v >> 8); swap (rc4_key, idx, j); idx++; j += rc4_key->S[idx] + (v >> 16); swap (rc4_key, idx, j); idx++; j += rc4_key->S[idx] + (v >> 24); swap (rc4_key, idx, j); idx++; v = data[2]; j += rc4_key->S[idx] + (v >> 0); swap (rc4_key, idx, j); idx++; j += rc4_key->S[idx] + (v >> 8); swap (rc4_key, idx, j); idx++; j += rc4_key->S[idx] + (v >> 16); swap (rc4_key, idx, j); idx++; j += rc4_key->S[idx] + (v >> 24); swap (rc4_key, idx, j); idx++; v = data[3]; j += rc4_key->S[idx] + (v >> 0); swap (rc4_key, idx, j); idx++; j += rc4_key->S[idx] + (v >> 8); swap (rc4_key, idx, j); idx++; j += rc4_key->S[idx] + (v >> 16); swap (rc4_key, idx, j); idx++; j += rc4_key->S[idx] + (v >> 24); swap (rc4_key, idx, j); idx++; } } DECLSPEC static u8 rc4_next_16 (LOCAL_AS RC4_KEY *rc4_key, u8 i, u8 j, const u32 *in, u32 *out) { #ifdef _unroll #pragma unroll #endif for (u32 k = 0; k < 4; k++) { u32 xor4 = 0; u8 idx; i += 1; j += rc4_key->S[i]; swap (rc4_key, i, j); idx = rc4_key->S[i] + rc4_key->S[j]; xor4 |= rc4_key->S[idx] << 0; i += 1; j += rc4_key->S[i]; swap (rc4_key, i, j); idx = rc4_key->S[i] + rc4_key->S[j]; xor4 |= rc4_key->S[idx] << 8; i += 1; j += rc4_key->S[i]; swap (rc4_key, i, j); idx = rc4_key->S[i] + rc4_key->S[j]; xor4 |= rc4_key->S[idx] << 16; i += 1; j += rc4_key->S[i]; swap (rc4_key, i, j); idx = rc4_key->S[i] + rc4_key->S[j]; xor4 |= rc4_key->S[idx] << 24; out[k] = in[k] ^ xor4; } return j; } DECLSPEC static int decrypt_and_check (LOCAL_AS RC4_KEY *rc4_key, u32 *data, u32 *timestamp_ct) { rc4_init_16 (rc4_key, data); u32 out[4]; u8 j = 0; j = rc4_next_16 (rc4_key, 0, j, timestamp_ct + 0, out); if ((out[3] & 0xffff0000) != 0x30320000) return 0; j = rc4_next_16 (rc4_key, 16, j, timestamp_ct + 4, out); if (((out[0] & 0xff) < '0') || ((out[0] & 0xff) > '9')) return 0; out[0] >>= 8; if (((out[0] & 0xff) < '0') || ((out[0] & 0xff) > '9')) return 0; out[0] >>= 8; if (((out[0] & 0xff) < '0') || ((out[0] & 0xff) > '9')) return 0; out[0] >>= 8; if (((out[0] & 0xff) < '0') || ((out[0] & 0xff) > '9')) return 0; if (((out[1] & 0xff) < '0') || ((out[1] & 0xff) > '9')) return 0; out[1] >>= 8; if (((out[1] & 0xff) < '0') || ((out[1] & 0xff) > '9')) return 0; out[1] >>= 8; if (((out[1] & 0xff) < '0') || ((out[1] & 0xff) > '9')) return 0; out[1] >>= 8; if (((out[1] & 0xff) < '0') || ((out[1] & 0xff) > '9')) return 0; if (((out[2] & 0xff) < '0') || ((out[2] & 0xff) > '9')) return 0; out[2] >>= 8; if (((out[2] & 0xff) < '0') || ((out[2] & 0xff) > '9')) return 0; out[2] >>= 8; if (((out[2] & 0xff) < '0') || ((out[2] & 0xff) > '9')) return 0; out[2] >>= 8; if (((out[2] & 0xff) < '0') || ((out[2] & 0xff) > '9')) return 0; return 1; } DECLSPEC static void hmac_md5_pad (u32 *w0, u32 *w1, u32 *w2, u32 *w3, u32 *ipad, u32 *opad) { w0[0] = w0[0] ^ 0x36363636; w0[1] = w0[1] ^ 0x36363636; w0[2] = w0[2] ^ 0x36363636; w0[3] = w0[3] ^ 0x36363636; w1[0] = w1[0] ^ 0x36363636; w1[1] = w1[1] ^ 0x36363636; w1[2] = w1[2] ^ 0x36363636; w1[3] = w1[3] ^ 0x36363636; w2[0] = w2[0] ^ 0x36363636; w2[1] = w2[1] ^ 0x36363636; w2[2] = w2[2] ^ 0x36363636; w2[3] = w2[3] ^ 0x36363636; w3[0] = w3[0] ^ 0x36363636; w3[1] = w3[1] ^ 0x36363636; w3[2] = w3[2] ^ 0x36363636; w3[3] = w3[3] ^ 0x36363636; ipad[0] = MD5M_A; ipad[1] = MD5M_B; ipad[2] = MD5M_C; ipad[3] = MD5M_D; md5_transform (w0, w1, w2, w3, ipad); w0[0] = w0[0] ^ 0x6a6a6a6a; w0[1] = w0[1] ^ 0x6a6a6a6a; w0[2] = w0[2] ^ 0x6a6a6a6a; w0[3] = w0[3] ^ 0x6a6a6a6a; w1[0] = w1[0] ^ 0x6a6a6a6a; w1[1] = w1[1] ^ 0x6a6a6a6a; w1[2] = w1[2] ^ 0x6a6a6a6a; w1[3] = w1[3] ^ 0x6a6a6a6a; w2[0] = w2[0] ^ 0x6a6a6a6a; w2[1] = w2[1] ^ 0x6a6a6a6a; w2[2] = w2[2] ^ 0x6a6a6a6a; w2[3] = w2[3] ^ 0x6a6a6a6a; w3[0] = w3[0] ^ 0x6a6a6a6a; w3[1] = w3[1] ^ 0x6a6a6a6a; w3[2] = w3[2] ^ 0x6a6a6a6a; w3[3] = w3[3] ^ 0x6a6a6a6a; opad[0] = MD5M_A; opad[1] = MD5M_B; opad[2] = MD5M_C; opad[3] = MD5M_D; md5_transform (w0, w1, w2, w3, opad); } DECLSPEC static void hmac_md5_run (u32 *w0, u32 *w1, u32 *w2, u32 *w3, u32 *ipad, u32 *opad, u32 *digest) { digest[0] = ipad[0]; digest[1] = ipad[1]; digest[2] = ipad[2]; digest[3] = ipad[3]; md5_transform (w0, w1, w2, w3, digest); w0[0] = digest[0]; w0[1] = digest[1]; w0[2] = digest[2]; w0[3] = digest[3]; w1[0] = 0x80; 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] = (64 + 16) * 8; w3[3] = 0; digest[0] = opad[0]; digest[1] = opad[1]; digest[2] = opad[2]; digest[3] = opad[3]; md5_transform (w0, w1, w2, w3, digest); } DECLSPEC static void kerb_prepare (const u32 *w0, const u32 *w1, const u32 pw_len, const u32 *checksum, u32 *digest) { /** * pads */ u32 w0_t[4]; u32 w1_t[4]; u32 w2_t[4]; u32 w3_t[4]; w0_t[0] = w0[0]; w0_t[1] = w0[1]; w0_t[2] = w0[2]; w0_t[3] = w0[3]; w1_t[0] = w1[0]; w1_t[1] = w1[1]; w1_t[2] = w1[2]; w1_t[3] = w1[3]; w2_t[0] = 0; w2_t[1] = 0; w2_t[2] = 0; w2_t[3] = 0; w3_t[0] = 0; w3_t[1] = 0; w3_t[2] = 0; w3_t[3] = 0; // K=MD4(Little_indian(UNICODE(pwd)) append_0x80_2x4 (w0_t, w1_t, pw_len); make_utf16le (w1_t, w2_t, w3_t); make_utf16le (w0_t, w0_t, w1_t); w3_t[2] = pw_len * 8 * 2; w3_t[3] = 0; digest[0] = MD4M_A; digest[1] = MD4M_B; digest[2] = MD4M_C; digest[3] = MD4M_D; md4_transform (w0_t, w1_t, w2_t, w3_t, digest); // K1=MD5_HMAC(K,1); with 1 encoded as little indian on 4 bytes (01000000 in hexa); w0_t[0] = digest[0]; w0_t[1] = digest[1]; w0_t[2] = digest[2]; w0_t[3] = digest[3]; w1_t[0] = 0; w1_t[1] = 0; w1_t[2] = 0; w1_t[3] = 0; w2_t[0] = 0; w2_t[1] = 0; w2_t[2] = 0; w2_t[3] = 0; w3_t[0] = 0; w3_t[1] = 0; w3_t[2] = 0; w3_t[3] = 0; u32 ipad[4]; u32 opad[4]; hmac_md5_pad (w0_t, w1_t, w2_t, w3_t, ipad, opad); w0_t[0] = 1; w0_t[1] = 0x80; w0_t[2] = 0; w0_t[3] = 0; w1_t[0] = 0; w1_t[1] = 0; w1_t[2] = 0; w1_t[3] = 0; w2_t[0] = 0; w2_t[1] = 0; w2_t[2] = 0; w2_t[3] = 0; w3_t[0] = 0; w3_t[1] = 0; w3_t[2] = (64 + 4) * 8; w3_t[3] = 0; hmac_md5_run (w0_t, w1_t, w2_t, w3_t, ipad, opad, digest); // K3=MD5_HMAC(K1,checksum); w0_t[0] = digest[0]; w0_t[1] = digest[1]; w0_t[2] = digest[2]; w0_t[3] = digest[3]; w1_t[0] = 0; w1_t[1] = 0; w1_t[2] = 0; w1_t[3] = 0; w2_t[0] = 0; w2_t[1] = 0; w2_t[2] = 0; w2_t[3] = 0; w3_t[0] = 0; w3_t[1] = 0; w3_t[2] = 0; w3_t[3] = 0; hmac_md5_pad (w0_t, w1_t, w2_t, w3_t, ipad, opad); w0_t[0] = checksum[0]; w0_t[1] = checksum[1]; w0_t[2] = checksum[2]; w0_t[3] = checksum[3]; w1_t[0] = 0x80; w1_t[1] = 0; w1_t[2] = 0; w1_t[3] = 0; w2_t[0] = 0; w2_t[1] = 0; w2_t[2] = 0; w2_t[3] = 0; w3_t[0] = 0; w3_t[1] = 0; w3_t[2] = (64 + 16) * 8; w3_t[3] = 0; hmac_md5_run (w0_t, w1_t, w2_t, w3_t, ipad, opad, digest); } KERNEL_FQ void m07500_m04 (KERN_ATTR_ESALT (krb5pa_t)) { /** * modifier */ const u64 lid = get_local_id (0); /** * base */ const u64 gid = get_global_id (0); if (gid >= gid_max) return; u32 pw_buf0[4]; u32 pw_buf1[4]; pw_buf0[0] = pws[gid].i[0]; pw_buf0[1] = pws[gid].i[1]; pw_buf0[2] = pws[gid].i[2]; pw_buf0[3] = pws[gid].i[3]; pw_buf1[0] = pws[gid].i[4]; pw_buf1[1] = pws[gid].i[5]; pw_buf1[2] = pws[gid].i[6]; pw_buf1[3] = pws[gid].i[7]; const u32 pw_l_len = pws[gid].pw_len & 63; /** * salt */ u32 checksum[4]; checksum[0] = esalt_bufs[digests_offset].checksum[0]; checksum[1] = esalt_bufs[digests_offset].checksum[1]; checksum[2] = esalt_bufs[digests_offset].checksum[2]; checksum[3] = esalt_bufs[digests_offset].checksum[3]; u32 timestamp_ct[8]; timestamp_ct[0] = esalt_bufs[digests_offset].timestamp[0]; timestamp_ct[1] = esalt_bufs[digests_offset].timestamp[1]; timestamp_ct[2] = esalt_bufs[digests_offset].timestamp[2]; timestamp_ct[3] = esalt_bufs[digests_offset].timestamp[3]; timestamp_ct[4] = esalt_bufs[digests_offset].timestamp[4]; timestamp_ct[5] = esalt_bufs[digests_offset].timestamp[5]; timestamp_ct[6] = esalt_bufs[digests_offset].timestamp[6]; timestamp_ct[7] = esalt_bufs[digests_offset].timestamp[7]; /** * shared */ LOCAL_AS RC4_KEY rc4_keys[64]; LOCAL_AS RC4_KEY *rc4_key = &rc4_keys[lid]; /** * loop */ for (u32 il_pos = 0; il_pos < il_cnt; il_pos += VECT_SIZE) { const u32x pw_r_len = pwlenx_create_combt (combs_buf, il_pos) & 63; const u32x pw_len = (pw_l_len + pw_r_len) & 63; /** * concat password candidate */ u32x wordl0[4] = { 0 }; u32x wordl1[4] = { 0 }; u32x wordl2[4] = { 0 }; u32x wordl3[4] = { 0 }; wordl0[0] = pw_buf0[0]; wordl0[1] = pw_buf0[1]; wordl0[2] = pw_buf0[2]; wordl0[3] = pw_buf0[3]; wordl1[0] = pw_buf1[0]; wordl1[1] = pw_buf1[1]; wordl1[2] = pw_buf1[2]; wordl1[3] = pw_buf1[3]; u32x wordr0[4] = { 0 }; u32x wordr1[4] = { 0 }; u32x wordr2[4] = { 0 }; u32x wordr3[4] = { 0 }; wordr0[0] = ix_create_combt (combs_buf, il_pos, 0); wordr0[1] = ix_create_combt (combs_buf, il_pos, 1); wordr0[2] = ix_create_combt (combs_buf, il_pos, 2); wordr0[3] = ix_create_combt (combs_buf, il_pos, 3); wordr1[0] = ix_create_combt (combs_buf, il_pos, 4); wordr1[1] = ix_create_combt (combs_buf, il_pos, 5); wordr1[2] = ix_create_combt (combs_buf, il_pos, 6); wordr1[3] = ix_create_combt (combs_buf, il_pos, 7); if (combs_mode == COMBINATOR_MODE_BASE_LEFT) { switch_buffer_by_offset_le_VV (wordr0, wordr1, wordr2, wordr3, pw_l_len); } else { switch_buffer_by_offset_le_VV (wordl0, wordl1, wordl2, wordl3, pw_r_len); } u32x w0[4]; u32x w1[4]; w0[0] = wordl0[0] | wordr0[0]; w0[1] = wordl0[1] | wordr0[1]; w0[2] = wordl0[2] | wordr0[2]; w0[3] = wordl0[3] | wordr0[3]; w1[0] = wordl1[0] | wordr1[0]; w1[1] = wordl1[1] | wordr1[1]; w1[2] = wordl1[2] | wordr1[2]; w1[3] = wordl1[3] | wordr1[3]; /** * kerberos */ u32 digest[4]; kerb_prepare (w0, w1, pw_len, checksum, digest); u32 tmp[4]; tmp[0] = digest[0]; tmp[1] = digest[1]; tmp[2] = digest[2]; tmp[3] = digest[3]; if (decrypt_and_check (rc4_key, tmp, timestamp_ct) == 1) { if (atomic_inc (&hashes_shown[digests_offset]) == 0) { mark_hash (plains_buf, d_return_buf, salt_pos, digests_cnt, 0, digests_offset + 0, gid, il_pos, 0, 0); } } } } KERNEL_FQ void m07500_m08 (KERN_ATTR_ESALT (krb5pa_t)) { } KERNEL_FQ void m07500_m16 (KERN_ATTR_ESALT (krb5pa_t)) { } KERNEL_FQ void m07500_s04 (KERN_ATTR_ESALT (krb5pa_t)) { /** * modifier */ const u64 lid = get_local_id (0); /** * base */ const u64 gid = get_global_id (0); if (gid >= gid_max) return; u32 pw_buf0[4]; u32 pw_buf1[4]; pw_buf0[0] = pws[gid].i[0]; pw_buf0[1] = pws[gid].i[1]; pw_buf0[2] = pws[gid].i[2]; pw_buf0[3] = pws[gid].i[3]; pw_buf1[0] = pws[gid].i[4]; pw_buf1[1] = pws[gid].i[5]; pw_buf1[2] = pws[gid].i[6]; pw_buf1[3] = pws[gid].i[7]; const u32 pw_l_len = pws[gid].pw_len & 63; /** * salt */ u32 checksum[4]; checksum[0] = esalt_bufs[digests_offset].checksum[0]; checksum[1] = esalt_bufs[digests_offset].checksum[1]; checksum[2] = esalt_bufs[digests_offset].checksum[2]; checksum[3] = esalt_bufs[digests_offset].checksum[3]; u32 timestamp_ct[8]; timestamp_ct[0] = esalt_bufs[digests_offset].timestamp[0]; timestamp_ct[1] = esalt_bufs[digests_offset].timestamp[1]; timestamp_ct[2] = esalt_bufs[digests_offset].timestamp[2]; timestamp_ct[3] = esalt_bufs[digests_offset].timestamp[3]; timestamp_ct[4] = esalt_bufs[digests_offset].timestamp[4]; timestamp_ct[5] = esalt_bufs[digests_offset].timestamp[5]; timestamp_ct[6] = esalt_bufs[digests_offset].timestamp[6]; timestamp_ct[7] = esalt_bufs[digests_offset].timestamp[7]; /** * shared */ LOCAL_AS RC4_KEY rc4_keys[64]; LOCAL_AS RC4_KEY *rc4_key = &rc4_keys[lid]; /** * loop */ for (u32 il_pos = 0; il_pos < il_cnt; il_pos += VECT_SIZE) { const u32x pw_r_len = pwlenx_create_combt (combs_buf, il_pos) & 63; const u32x pw_len = (pw_l_len + pw_r_len) & 63; /** * concat password candidate */ u32x wordl0[4] = { 0 }; u32x wordl1[4] = { 0 }; u32x wordl2[4] = { 0 }; u32x wordl3[4] = { 0 }; wordl0[0] = pw_buf0[0]; wordl0[1] = pw_buf0[1]; wordl0[2] = pw_buf0[2]; wordl0[3] = pw_buf0[3]; wordl1[0] = pw_buf1[0]; wordl1[1] = pw_buf1[1]; wordl1[2] = pw_buf1[2]; wordl1[3] = pw_buf1[3]; u32x wordr0[4] = { 0 }; u32x wordr1[4] = { 0 }; u32x wordr2[4] = { 0 }; u32x wordr3[4] = { 0 }; wordr0[0] = ix_create_combt (combs_buf, il_pos, 0); wordr0[1] = ix_create_combt (combs_buf, il_pos, 1); wordr0[2] = ix_create_combt (combs_buf, il_pos, 2); wordr0[3] = ix_create_combt (combs_buf, il_pos, 3); wordr1[0] = ix_create_combt (combs_buf, il_pos, 4); wordr1[1] = ix_create_combt (combs_buf, il_pos, 5); wordr1[2] = ix_create_combt (combs_buf, il_pos, 6); wordr1[3] = ix_create_combt (combs_buf, il_pos, 7); if (combs_mode == COMBINATOR_MODE_BASE_LEFT) { switch_buffer_by_offset_le_VV (wordr0, wordr1, wordr2, wordr3, pw_l_len); } else { switch_buffer_by_offset_le_VV (wordl0, wordl1, wordl2, wordl3, pw_r_len); } u32x w0[4]; u32x w1[4]; w0[0] = wordl0[0] | wordr0[0]; w0[1] = wordl0[1] | wordr0[1]; w0[2] = wordl0[2] | wordr0[2]; w0[3] = wordl0[3] | wordr0[3]; w1[0] = wordl1[0] | wordr1[0]; w1[1] = wordl1[1] | wordr1[1]; w1[2] = wordl1[2] | wordr1[2]; w1[3] = wordl1[3] | wordr1[3]; /** * kerberos */ u32 digest[4]; kerb_prepare (w0, w1, pw_len, checksum, digest); u32 tmp[4]; tmp[0] = digest[0]; tmp[1] = digest[1]; tmp[2] = digest[2]; tmp[3] = digest[3]; if (decrypt_and_check (rc4_key, tmp, timestamp_ct) == 1) { if (atomic_inc (&hashes_shown[digests_offset]) == 0) { mark_hash (plains_buf, d_return_buf, salt_pos, digests_cnt, 0, digests_offset + 0, gid, il_pos, 0, 0); } } } } KERNEL_FQ void m07500_s08 (KERN_ATTR_ESALT (krb5pa_t)) { } KERNEL_FQ void m07500_s16 (KERN_ATTR_ESALT (krb5pa_t)) { }