DeforaNetworks/hashcat
3
0
Fork 0
Code Releases Activity

RC4: Updated hash-mode 7500, 9710, 9720, 10400 and 10410 to new RC4 crypto library code, improving performance by 20% or more

Browse Source
This commit is contained in:
Jens Steube
2021-05-30 19:53:28 +02:00
parent 2a55fd7f33
commit 4e565efcf9
8 changed files with 101 additions and 858 deletions
Download Patch File Download Diff File Expand all files Collapse all files
OpenCL/m07500_a0-optimized.cl
+9 -135
View File
@@ -16,6 +16,7 @@
#include "inc_simd.cl"
#include "inc_hash_md4.cl"
#include "inc_hash_md5.cl"
#include "inc_cipher_rc4.cl"
#endif
typedef struct krb5pa
@@ -28,142 +29,19 @@ typedef struct krb5pa
} krb5pa_t;
typedef struct
DECLSPEC int decrypt_and_check (LOCAL_AS u32 *S, u32 *data, u32 *timestamp_ct)
{
u8 S[256];
u32 wtf_its_faster;
} RC4_KEY;
DECLSPEC 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 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 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 int decrypt_and_check (LOCAL_AS RC4_KEY *rc4_key, u32 *data, u32 *timestamp_ct)
{
rc4_init_16 (rc4_key, data);
rc4_init_128 (S, data);
u32 out[4];
u8 j = 0;
j = rc4_next_16 (rc4_key, 0, j, timestamp_ct + 0, out);
j = rc4_next_16 (S, 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);
j = rc4_next_16 (S, 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;
@@ -451,9 +329,7 @@ KERNEL_FQ void m07500_m04 (KERN_ATTR_RULES_ESALT (krb5pa_t))
* shared
*/
LOCAL_VK RC4_KEY rc4_keys[64];
LOCAL_AS RC4_KEY *rc4_key = &rc4_keys[lid];
LOCAL_VK u32 S[64 * FIXED_LOCAL_SIZE];
/**
* loop
@@ -483,7 +359,7 @@ KERNEL_FQ void m07500_m04 (KERN_ATTR_RULES_ESALT (krb5pa_t))
tmp[2] = digest[2];
tmp[3] = digest[3];
if (decrypt_and_check (rc4_key, tmp, timestamp_ct) == 1)
if (decrypt_and_check (S, tmp, timestamp_ct) == 1)
{
if (hc_atomic_inc (&hashes_shown[DIGESTS_OFFSET]) == 0)
{
@@ -557,9 +433,7 @@ KERNEL_FQ void m07500_s04 (KERN_ATTR_RULES_ESALT (krb5pa_t))
* shared
*/
LOCAL_VK RC4_KEY rc4_keys[64];
LOCAL_AS RC4_KEY *rc4_key = &rc4_keys[lid];
LOCAL_VK u32 S[64 * FIXED_LOCAL_SIZE];
/**
* loop
@@ -589,7 +463,7 @@ KERNEL_FQ void m07500_s04 (KERN_ATTR_RULES_ESALT (krb5pa_t))
tmp[2] = digest[2];
tmp[3] = digest[3];
if (decrypt_and_check (rc4_key, tmp, timestamp_ct) == 1)
if (decrypt_and_check (S, tmp, timestamp_ct) == 1)
{
if (hc_atomic_inc (&hashes_shown[DIGESTS_OFFSET]) == 0)
{