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341 lines
7.3 KiB
Common Lisp
341 lines
7.3 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_platform.cl"
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#include "inc_common.cl"
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#include "inc_hash_md4.cl"
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#include "inc_hash_md5.cl"
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#include "inc_cipher_rc4.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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DECLSPEC int decrypt_and_check (LOCAL_AS u32 *S, u32 *data, u32 *timestamp_ct)
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{
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rc4_init_128 (S, data);
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u32 out[4];
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u8 j = 0;
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j = rc4_next_16 (S, 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 (S, 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 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_VECTOR_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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* digest
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*/
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const u32 search[4] =
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{
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digests_buf[DIGESTS_OFFSET].digest_buf[DGST_R0],
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digests_buf[DIGESTS_OFFSET].digest_buf[DGST_R1],
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digests_buf[DIGESTS_OFFSET].digest_buf[DGST_R2],
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digests_buf[DIGESTS_OFFSET].digest_buf[DGST_R3]
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};
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/**
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* base
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*/
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const u32 pw_len = pws[gid].pw_len;
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u32x w[64] = { 0 };
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for (u32 i = 0, idx = 0; i < pw_len; i += 4, idx += 1)
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{
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w[idx] = pws[gid].i[idx];
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}
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LOCAL_VK u32 S[64 * FIXED_LOCAL_SIZE];
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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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u32x w0l = w[0];
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for (u32 il_pos = 0; il_pos < il_cnt; il_pos += VECT_SIZE)
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{
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const u32x w0r = words_buf_r[il_pos / VECT_SIZE];
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const u32x w0 = w0l | w0r;
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w[0] = w0;
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md4_ctx_t ctx;
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md4_init (&ctx);
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md4_update_utf16le (&ctx, w, 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 (S, digest, timestamp_ct) == 1)
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{
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if (hc_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_VECTOR_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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* digest
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*/
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const u32 search[4] =
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{
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digests_buf[DIGESTS_OFFSET].digest_buf[DGST_R0],
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digests_buf[DIGESTS_OFFSET].digest_buf[DGST_R1],
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digests_buf[DIGESTS_OFFSET].digest_buf[DGST_R2],
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digests_buf[DIGESTS_OFFSET].digest_buf[DGST_R3]
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};
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/**
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* base
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*/
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const u32 pw_len = pws[gid].pw_len;
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u32x w[64] = { 0 };
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for (u32 i = 0, idx = 0; i < pw_len; i += 4, idx += 1)
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{
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w[idx] = pws[gid].i[idx];
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}
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LOCAL_VK u32 S[64 * FIXED_LOCAL_SIZE];
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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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u32x w0l = w[0];
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for (u32 il_pos = 0; il_pos < il_cnt; il_pos += VECT_SIZE)
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{
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const u32x w0r = words_buf_r[il_pos / VECT_SIZE];
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const u32x w0 = w0l | w0r;
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w[0] = w0;
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md4_ctx_t ctx;
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md4_init (&ctx);
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md4_update_utf16le (&ctx, w, 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 (S, digest, timestamp_ct) == 1)
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{
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if (hc_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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