mirror of
https://github.com/hashcat/hashcat.git
synced 2024-11-01 21:19:04 +00:00
648 lines
16 KiB
Common Lisp
648 lines
16 KiB
Common Lisp
/**
|
|
* Author......: See docs/credits.txt
|
|
* License.....: MIT
|
|
*/
|
|
|
|
#include "inc_vendor.h"
|
|
#include "inc_types.h"
|
|
#include "inc_common.h"
|
|
#include "inc_cipher_aes.h"
|
|
#include "inc_cipher_serpent.h"
|
|
#include "inc_cipher_twofish.h"
|
|
#include "inc_truecrypt_crc32.h"
|
|
#include "inc_truecrypt_xts.h"
|
|
|
|
DECLSPEC void xts_mul2 (u32 *in, u32 *out)
|
|
{
|
|
const u32 c = in[3] >> 31;
|
|
|
|
out[3] = (in[3] << 1) | (in[2] >> 31);
|
|
out[2] = (in[2] << 1) | (in[1] >> 31);
|
|
out[1] = (in[1] << 1) | (in[0] >> 31);
|
|
out[0] = (in[0] << 1);
|
|
|
|
out[0] ^= c * 0x87;
|
|
}
|
|
|
|
DECLSPEC void aes256_decrypt_xts_first (const u32 *ukey1, const u32 *ukey2, const u32 *in, u32 *out, u32 *S, u32 *T, u32 *ks, SHM_TYPE u32 *s_te0, SHM_TYPE u32 *s_te1, SHM_TYPE u32 *s_te2, SHM_TYPE u32 *s_te3, SHM_TYPE u32 *s_te4, SHM_TYPE u32 *s_td0, SHM_TYPE u32 *s_td1, SHM_TYPE u32 *s_td2, SHM_TYPE u32 *s_td3, SHM_TYPE u32 *s_td4)
|
|
{
|
|
out[0] = in[0];
|
|
out[1] = in[1];
|
|
out[2] = in[2];
|
|
out[3] = in[3];
|
|
|
|
aes256_set_encrypt_key (ks, ukey2, s_te0, s_te1, s_te2, s_te3, s_te4);
|
|
aes256_encrypt (ks, S, T, s_te0, s_te1, s_te2, s_te3, s_te4);
|
|
|
|
out[0] ^= T[0];
|
|
out[1] ^= T[1];
|
|
out[2] ^= T[2];
|
|
out[3] ^= T[3];
|
|
|
|
aes256_set_decrypt_key (ks, ukey1, s_te0, s_te1, s_te2, s_te3, s_te4, s_td0, s_td1, s_td2, s_td3, s_td4);
|
|
aes256_decrypt (ks, out, out, s_td0, s_td1, s_td2, s_td3, s_td4);
|
|
|
|
out[0] ^= T[0];
|
|
out[1] ^= T[1];
|
|
out[2] ^= T[2];
|
|
out[3] ^= T[3];
|
|
}
|
|
|
|
DECLSPEC void aes256_decrypt_xts_next (const u32 *in, u32 *out, u32 *T, u32 *ks, SHM_TYPE u32 *s_td0, SHM_TYPE u32 *s_td1, SHM_TYPE u32 *s_td2, SHM_TYPE u32 *s_td3, SHM_TYPE u32 *s_td4)
|
|
{
|
|
out[0] = in[0];
|
|
out[1] = in[1];
|
|
out[2] = in[2];
|
|
out[3] = in[3];
|
|
|
|
xts_mul2 (T, T);
|
|
|
|
out[0] ^= T[0];
|
|
out[1] ^= T[1];
|
|
out[2] ^= T[2];
|
|
out[3] ^= T[3];
|
|
|
|
aes256_decrypt (ks, out, out, s_td0, s_td1, s_td2, s_td3, s_td4);
|
|
|
|
out[0] ^= T[0];
|
|
out[1] ^= T[1];
|
|
out[2] ^= T[2];
|
|
out[3] ^= T[3];
|
|
}
|
|
|
|
DECLSPEC void serpent256_decrypt_xts_first (const u32 *ukey1, const u32 *ukey2, const u32 *in, u32 *out, u32 *S, u32 *T, u32 *ks)
|
|
{
|
|
out[0] = in[0];
|
|
out[1] = in[1];
|
|
out[2] = in[2];
|
|
out[3] = in[3];
|
|
|
|
serpent256_set_key (ks, ukey2);
|
|
serpent256_encrypt (ks, S, T);
|
|
|
|
out[0] ^= T[0];
|
|
out[1] ^= T[1];
|
|
out[2] ^= T[2];
|
|
out[3] ^= T[3];
|
|
|
|
serpent256_set_key (ks, ukey1);
|
|
serpent256_decrypt (ks, out, out);
|
|
|
|
out[0] ^= T[0];
|
|
out[1] ^= T[1];
|
|
out[2] ^= T[2];
|
|
out[3] ^= T[3];
|
|
}
|
|
|
|
DECLSPEC void serpent256_decrypt_xts_next (const u32 *in, u32 *out, u32 *T, u32 *ks)
|
|
{
|
|
out[0] = in[0];
|
|
out[1] = in[1];
|
|
out[2] = in[2];
|
|
out[3] = in[3];
|
|
|
|
xts_mul2 (T, T);
|
|
|
|
out[0] ^= T[0];
|
|
out[1] ^= T[1];
|
|
out[2] ^= T[2];
|
|
out[3] ^= T[3];
|
|
|
|
serpent256_decrypt (ks, out, out);
|
|
|
|
out[0] ^= T[0];
|
|
out[1] ^= T[1];
|
|
out[2] ^= T[2];
|
|
out[3] ^= T[3];
|
|
}
|
|
|
|
DECLSPEC void twofish256_decrypt_xts_first (const u32 *ukey1, const u32 *ukey2, const u32 *in, u32 *out, u32 *S, u32 *T, u32 *sk, u32 *lk)
|
|
{
|
|
out[0] = in[0];
|
|
out[1] = in[1];
|
|
out[2] = in[2];
|
|
out[3] = in[3];
|
|
|
|
twofish256_set_key (sk, lk, ukey2);
|
|
twofish256_encrypt (sk, lk, S, T);
|
|
|
|
out[0] ^= T[0];
|
|
out[1] ^= T[1];
|
|
out[2] ^= T[2];
|
|
out[3] ^= T[3];
|
|
|
|
twofish256_set_key (sk, lk, ukey1);
|
|
twofish256_decrypt (sk, lk, out, out);
|
|
|
|
out[0] ^= T[0];
|
|
out[1] ^= T[1];
|
|
out[2] ^= T[2];
|
|
out[3] ^= T[3];
|
|
}
|
|
|
|
DECLSPEC void twofish256_decrypt_xts_next (const u32 *in, u32 *out, u32 *T, u32 *sk, u32 *lk)
|
|
{
|
|
out[0] = in[0];
|
|
out[1] = in[1];
|
|
out[2] = in[2];
|
|
out[3] = in[3];
|
|
|
|
xts_mul2 (T, T);
|
|
|
|
out[0] ^= T[0];
|
|
out[1] ^= T[1];
|
|
out[2] ^= T[2];
|
|
out[3] ^= T[3];
|
|
|
|
twofish256_decrypt (sk, lk, out, out);
|
|
|
|
out[0] ^= T[0];
|
|
out[1] ^= T[1];
|
|
out[2] ^= T[2];
|
|
out[3] ^= T[3];
|
|
}
|
|
|
|
// 512 bit
|
|
|
|
DECLSPEC int verify_header_aes (GLOBAL_AS const u32 *data_buf, const u32 signature, const u32 *ukey1, const u32 *ukey2, SHM_TYPE u32 *s_te0, SHM_TYPE u32 *s_te1, SHM_TYPE u32 *s_te2, SHM_TYPE u32 *s_te3, SHM_TYPE u32 *s_te4, SHM_TYPE u32 *s_td0, SHM_TYPE u32 *s_td1, SHM_TYPE u32 *s_td2, SHM_TYPE u32 *s_td3, SHM_TYPE u32 *s_td4)
|
|
{
|
|
u32 ks_aes[60];
|
|
|
|
u32 S[4] = { 0 };
|
|
|
|
u32 T_aes[4] = { 0 };
|
|
|
|
u32 data[4];
|
|
|
|
data[0] = data_buf[0];
|
|
data[1] = data_buf[1];
|
|
data[2] = data_buf[2];
|
|
data[3] = data_buf[3];
|
|
|
|
u32 tmp[4];
|
|
|
|
aes256_decrypt_xts_first (ukey1, ukey2, data, tmp, S, T_aes, ks_aes, s_te0, s_te1, s_te2, s_te3, s_te4, s_td0, s_td1, s_td2, s_td3, s_td4);
|
|
|
|
if (tmp[0] != signature) return 0;
|
|
|
|
const u32 crc32_save = hc_swap32_S (~tmp[2]);
|
|
|
|
// seek to byte 256
|
|
|
|
for (int i = 4; i < 64 - 16; i += 4)
|
|
{
|
|
xts_mul2 (T_aes, T_aes);
|
|
}
|
|
|
|
// calculate crc32 from here
|
|
|
|
u32 crc32 = ~0;
|
|
|
|
for (int i = 64 - 16; i < 128 - 16; i += 4)
|
|
{
|
|
data[0] = data_buf[i + 0];
|
|
data[1] = data_buf[i + 1];
|
|
data[2] = data_buf[i + 2];
|
|
data[3] = data_buf[i + 3];
|
|
|
|
aes256_decrypt_xts_next (data, tmp, T_aes, ks_aes, s_td0, s_td1, s_td2, s_td3, s_td4);
|
|
|
|
crc32 = round_crc32_4 (tmp[0], crc32);
|
|
crc32 = round_crc32_4 (tmp[1], crc32);
|
|
crc32 = round_crc32_4 (tmp[2], crc32);
|
|
crc32 = round_crc32_4 (tmp[3], crc32);
|
|
}
|
|
|
|
if (crc32 != crc32_save) return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
DECLSPEC int verify_header_serpent (GLOBAL_AS const u32 *data_buf, const u32 signature, const u32 *ukey1, const u32 *ukey2)
|
|
{
|
|
u32 ks_serpent[140];
|
|
|
|
u32 S[4] = { 0 };
|
|
|
|
u32 T_serpent[4] = { 0 };
|
|
|
|
u32 data[4];
|
|
|
|
data[0] = data_buf[0];
|
|
data[1] = data_buf[1];
|
|
data[2] = data_buf[2];
|
|
data[3] = data_buf[3];
|
|
|
|
u32 tmp[4];
|
|
|
|
serpent256_decrypt_xts_first (ukey1, ukey2, data, tmp, S, T_serpent, ks_serpent);
|
|
|
|
if (tmp[0] != signature) return 0;
|
|
|
|
const u32 crc32_save = hc_swap32_S (~tmp[2]);
|
|
|
|
// seek to byte 256
|
|
|
|
for (int i = 4; i < 64 - 16; i += 4)
|
|
{
|
|
xts_mul2 (T_serpent, T_serpent);
|
|
}
|
|
|
|
// calculate crc32 from here
|
|
|
|
u32 crc32 = ~0;
|
|
|
|
for (int i = 64 - 16; i < 128 - 16; i += 4)
|
|
{
|
|
data[0] = data_buf[i + 0];
|
|
data[1] = data_buf[i + 1];
|
|
data[2] = data_buf[i + 2];
|
|
data[3] = data_buf[i + 3];
|
|
|
|
serpent256_decrypt_xts_next (data, tmp, T_serpent, ks_serpent);
|
|
|
|
crc32 = round_crc32_4 (tmp[0], crc32);
|
|
crc32 = round_crc32_4 (tmp[1], crc32);
|
|
crc32 = round_crc32_4 (tmp[2], crc32);
|
|
crc32 = round_crc32_4 (tmp[3], crc32);
|
|
}
|
|
|
|
if (crc32 != crc32_save) return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
DECLSPEC int verify_header_twofish (GLOBAL_AS const u32 *data_buf, const u32 signature, const u32 *ukey1, const u32 *ukey2)
|
|
{
|
|
u32 sk_twofish[4];
|
|
u32 lk_twofish[40];
|
|
|
|
u32 S[4] = { 0 };
|
|
|
|
u32 T_twofish[4] = { 0 };
|
|
|
|
u32 data[4];
|
|
|
|
data[0] = data_buf[0];
|
|
data[1] = data_buf[1];
|
|
data[2] = data_buf[2];
|
|
data[3] = data_buf[3];
|
|
|
|
u32 tmp[4];
|
|
|
|
twofish256_decrypt_xts_first (ukey1, ukey2, data, tmp, S, T_twofish, sk_twofish, lk_twofish);
|
|
|
|
if (tmp[0] != signature) return 0;
|
|
|
|
const u32 crc32_save = hc_swap32_S (~tmp[2]);
|
|
|
|
// seek to byte 256
|
|
|
|
for (int i = 4; i < 64 - 16; i += 4)
|
|
{
|
|
xts_mul2 (T_twofish, T_twofish);
|
|
}
|
|
|
|
// calculate crc32 from here
|
|
|
|
u32 crc32 = ~0;
|
|
|
|
for (int i = 64 - 16; i < 128 - 16; i += 4)
|
|
{
|
|
data[0] = data_buf[i + 0];
|
|
data[1] = data_buf[i + 1];
|
|
data[2] = data_buf[i + 2];
|
|
data[3] = data_buf[i + 3];
|
|
|
|
twofish256_decrypt_xts_next (data, tmp, T_twofish, sk_twofish, lk_twofish);
|
|
|
|
crc32 = round_crc32_4 (tmp[0], crc32);
|
|
crc32 = round_crc32_4 (tmp[1], crc32);
|
|
crc32 = round_crc32_4 (tmp[2], crc32);
|
|
crc32 = round_crc32_4 (tmp[3], crc32);
|
|
}
|
|
|
|
if (crc32 != crc32_save) return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
// 1024 bit
|
|
|
|
DECLSPEC int verify_header_aes_twofish (GLOBAL_AS const u32 *data_buf, const u32 signature, const u32 *ukey1, const u32 *ukey2, const u32 *ukey3, const u32 *ukey4, SHM_TYPE u32 *s_te0, SHM_TYPE u32 *s_te1, SHM_TYPE u32 *s_te2, SHM_TYPE u32 *s_te3, SHM_TYPE u32 *s_te4, SHM_TYPE u32 *s_td0, SHM_TYPE u32 *s_td1, SHM_TYPE u32 *s_td2, SHM_TYPE u32 *s_td3, SHM_TYPE u32 *s_td4)
|
|
{
|
|
u32 ks_aes[60];
|
|
|
|
u32 sk_twofish[4];
|
|
u32 lk_twofish[40];
|
|
|
|
u32 S[4] = { 0 };
|
|
|
|
u32 T_aes[4] = { 0 };
|
|
u32 T_twofish[4] = { 0 };
|
|
|
|
u32 data[4];
|
|
|
|
data[0] = data_buf[0];
|
|
data[1] = data_buf[1];
|
|
data[2] = data_buf[2];
|
|
data[3] = data_buf[3];
|
|
|
|
u32 tmp[4];
|
|
|
|
aes256_decrypt_xts_first (ukey2, ukey4, data, tmp, S, T_aes, ks_aes, s_te0, s_te1, s_te2, s_te3, s_te4, s_td0, s_td1, s_td2, s_td3, s_td4);
|
|
twofish256_decrypt_xts_first (ukey1, ukey3, tmp, tmp, S, T_twofish, sk_twofish, lk_twofish);
|
|
|
|
if (tmp[0] != signature) return 0;
|
|
|
|
const u32 crc32_save = hc_swap32_S (~tmp[2]);
|
|
|
|
// seek to byte 256
|
|
|
|
for (int i = 4; i < 64 - 16; i += 4)
|
|
{
|
|
xts_mul2 (T_aes, T_aes);
|
|
xts_mul2 (T_twofish, T_twofish);
|
|
}
|
|
|
|
// calculate crc32 from here
|
|
|
|
u32 crc32 = ~0;
|
|
|
|
for (int i = 64 - 16; i < 128 - 16; i += 4)
|
|
{
|
|
data[0] = data_buf[i + 0];
|
|
data[1] = data_buf[i + 1];
|
|
data[2] = data_buf[i + 2];
|
|
data[3] = data_buf[i + 3];
|
|
|
|
aes256_decrypt_xts_next (data, tmp, T_aes, ks_aes, s_td0, s_td1, s_td2, s_td3, s_td4);
|
|
twofish256_decrypt_xts_next (tmp, tmp, T_twofish, sk_twofish, lk_twofish);
|
|
|
|
crc32 = round_crc32_4 (tmp[0], crc32);
|
|
crc32 = round_crc32_4 (tmp[1], crc32);
|
|
crc32 = round_crc32_4 (tmp[2], crc32);
|
|
crc32 = round_crc32_4 (tmp[3], crc32);
|
|
}
|
|
|
|
if (crc32 != crc32_save) return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
DECLSPEC int verify_header_serpent_aes (GLOBAL_AS const u32 *data_buf, const u32 signature, const u32 *ukey1, const u32 *ukey2, const u32 *ukey3, const u32 *ukey4, SHM_TYPE u32 *s_te0, SHM_TYPE u32 *s_te1, SHM_TYPE u32 *s_te2, SHM_TYPE u32 *s_te3, SHM_TYPE u32 *s_te4, SHM_TYPE u32 *s_td0, SHM_TYPE u32 *s_td1, SHM_TYPE u32 *s_td2, SHM_TYPE u32 *s_td3, SHM_TYPE u32 *s_td4)
|
|
{
|
|
u32 ks_serpent[140];
|
|
u32 ks_aes[60];
|
|
|
|
u32 S[4] = { 0 };
|
|
|
|
u32 T_serpent[4] = { 0 };
|
|
u32 T_aes[4] = { 0 };
|
|
|
|
u32 data[4];
|
|
|
|
data[0] = data_buf[0];
|
|
data[1] = data_buf[1];
|
|
data[2] = data_buf[2];
|
|
data[3] = data_buf[3];
|
|
|
|
u32 tmp[4];
|
|
|
|
serpent256_decrypt_xts_first (ukey2, ukey4, data, tmp, S, T_serpent, ks_serpent);
|
|
aes256_decrypt_xts_first (ukey1, ukey3, tmp, tmp, S, T_aes, ks_aes, s_te0, s_te1, s_te2, s_te3, s_te4, s_td0, s_td1, s_td2, s_td3, s_td4);
|
|
|
|
if (tmp[0] != signature) return 0;
|
|
|
|
const u32 crc32_save = hc_swap32_S (~tmp[2]);
|
|
|
|
// seek to byte 256
|
|
|
|
for (int i = 4; i < 64 - 16; i += 4)
|
|
{
|
|
xts_mul2 (T_serpent, T_serpent);
|
|
xts_mul2 (T_aes, T_aes);
|
|
}
|
|
|
|
// calculate crc32 from here
|
|
|
|
u32 crc32 = ~0;
|
|
|
|
for (int i = 64 - 16; i < 128 - 16; i += 4)
|
|
{
|
|
data[0] = data_buf[i + 0];
|
|
data[1] = data_buf[i + 1];
|
|
data[2] = data_buf[i + 2];
|
|
data[3] = data_buf[i + 3];
|
|
|
|
serpent256_decrypt_xts_next (data, tmp, T_serpent, ks_serpent);
|
|
aes256_decrypt_xts_next (tmp, tmp, T_aes, ks_aes, s_td0, s_td1, s_td2, s_td3, s_td4);
|
|
|
|
crc32 = round_crc32_4 (tmp[0], crc32);
|
|
crc32 = round_crc32_4 (tmp[1], crc32);
|
|
crc32 = round_crc32_4 (tmp[2], crc32);
|
|
crc32 = round_crc32_4 (tmp[3], crc32);
|
|
}
|
|
|
|
if (crc32 != crc32_save) return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
DECLSPEC int verify_header_twofish_serpent (GLOBAL_AS const u32 *data_buf, const u32 signature, const u32 *ukey1, const u32 *ukey2, const u32 *ukey3, const u32 *ukey4)
|
|
{
|
|
u32 sk_twofish[4];
|
|
u32 lk_twofish[40];
|
|
|
|
u32 ks_serpent[140];
|
|
|
|
u32 S[4] = { 0 };
|
|
|
|
u32 T_twofish[4] = { 0 };
|
|
u32 T_serpent[4] = { 0 };
|
|
|
|
u32 data[4];
|
|
|
|
data[0] = data_buf[0];
|
|
data[1] = data_buf[1];
|
|
data[2] = data_buf[2];
|
|
data[3] = data_buf[3];
|
|
|
|
u32 tmp[4];
|
|
|
|
twofish256_decrypt_xts_first (ukey2, ukey4, data, tmp, S, T_twofish, sk_twofish, lk_twofish);
|
|
serpent256_decrypt_xts_first (ukey1, ukey3, tmp, tmp, S, T_serpent, ks_serpent);
|
|
|
|
if (tmp[0] != signature) return 0;
|
|
|
|
const u32 crc32_save = hc_swap32_S (~tmp[2]);
|
|
|
|
// seek to byte 256
|
|
|
|
for (int i = 4; i < 64 - 16; i += 4)
|
|
{
|
|
xts_mul2 (T_twofish, T_twofish);
|
|
xts_mul2 (T_serpent, T_serpent);
|
|
}
|
|
|
|
// calculate crc32 from here
|
|
|
|
u32 crc32 = ~0;
|
|
|
|
for (int i = 64 - 16; i < 128 - 16; i += 4)
|
|
{
|
|
data[0] = data_buf[i + 0];
|
|
data[1] = data_buf[i + 1];
|
|
data[2] = data_buf[i + 2];
|
|
data[3] = data_buf[i + 3];
|
|
|
|
twofish256_decrypt_xts_next (data, tmp, T_twofish, sk_twofish, lk_twofish);
|
|
serpent256_decrypt_xts_next (tmp, tmp, T_serpent, ks_serpent);
|
|
|
|
crc32 = round_crc32_4 (tmp[0], crc32);
|
|
crc32 = round_crc32_4 (tmp[1], crc32);
|
|
crc32 = round_crc32_4 (tmp[2], crc32);
|
|
crc32 = round_crc32_4 (tmp[3], crc32);
|
|
}
|
|
|
|
if (crc32 != crc32_save) return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
// 1536 bit
|
|
|
|
DECLSPEC int verify_header_aes_twofish_serpent (GLOBAL_AS const u32 *data_buf, const u32 signature, const u32 *ukey1, const u32 *ukey2, const u32 *ukey3, const u32 *ukey4, const u32 *ukey5, const u32 *ukey6, SHM_TYPE u32 *s_te0, SHM_TYPE u32 *s_te1, SHM_TYPE u32 *s_te2, SHM_TYPE u32 *s_te3, SHM_TYPE u32 *s_te4, SHM_TYPE u32 *s_td0, SHM_TYPE u32 *s_td1, SHM_TYPE u32 *s_td2, SHM_TYPE u32 *s_td3, SHM_TYPE u32 *s_td4)
|
|
{
|
|
u32 ks_aes[60];
|
|
|
|
u32 sk_twofish[4];
|
|
u32 lk_twofish[40];
|
|
|
|
u32 ks_serpent[140];
|
|
|
|
u32 S[4] = { 0 };
|
|
|
|
u32 T_aes[4] = { 0 };
|
|
u32 T_twofish[4] = { 0 };
|
|
u32 T_serpent[4] = { 0 };
|
|
|
|
u32 data[4];
|
|
|
|
data[0] = data_buf[0];
|
|
data[1] = data_buf[1];
|
|
data[2] = data_buf[2];
|
|
data[3] = data_buf[3];
|
|
|
|
u32 tmp[4];
|
|
|
|
aes256_decrypt_xts_first (ukey3, ukey6, data, tmp, S, T_aes, ks_aes, s_te0, s_te1, s_te2, s_te3, s_te4, s_td0, s_td1, s_td2, s_td3, s_td4);
|
|
twofish256_decrypt_xts_first (ukey2, ukey5, tmp, tmp, S, T_twofish, sk_twofish, lk_twofish);
|
|
serpent256_decrypt_xts_first (ukey1, ukey4, tmp, tmp, S, T_serpent, ks_serpent);
|
|
|
|
if (tmp[0] != signature) return 0;
|
|
|
|
const u32 crc32_save = hc_swap32_S (~tmp[2]);
|
|
|
|
// seek to byte 256
|
|
|
|
for (int i = 4; i < 64 - 16; i += 4)
|
|
{
|
|
xts_mul2 (T_aes, T_aes);
|
|
xts_mul2 (T_twofish, T_twofish);
|
|
xts_mul2 (T_serpent, T_serpent);
|
|
}
|
|
|
|
// calculate crc32 from here
|
|
|
|
u32 crc32 = ~0;
|
|
|
|
for (int i = 64 - 16; i < 128 - 16; i += 4)
|
|
{
|
|
data[0] = data_buf[i + 0];
|
|
data[1] = data_buf[i + 1];
|
|
data[2] = data_buf[i + 2];
|
|
data[3] = data_buf[i + 3];
|
|
|
|
aes256_decrypt_xts_next (data, tmp, T_aes, ks_aes, s_td0, s_td1, s_td2, s_td3, s_td4);
|
|
twofish256_decrypt_xts_next (tmp, tmp, T_twofish, sk_twofish, lk_twofish);
|
|
serpent256_decrypt_xts_next (tmp, tmp, T_serpent, ks_serpent);
|
|
|
|
crc32 = round_crc32_4 (tmp[0], crc32);
|
|
crc32 = round_crc32_4 (tmp[1], crc32);
|
|
crc32 = round_crc32_4 (tmp[2], crc32);
|
|
crc32 = round_crc32_4 (tmp[3], crc32);
|
|
}
|
|
|
|
if (crc32 != crc32_save) return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
DECLSPEC int verify_header_serpent_twofish_aes (GLOBAL_AS const u32 *data_buf, const u32 signature, const u32 *ukey1, const u32 *ukey2, const u32 *ukey3, const u32 *ukey4, const u32 *ukey5, const u32 *ukey6, SHM_TYPE u32 *s_te0, SHM_TYPE u32 *s_te1, SHM_TYPE u32 *s_te2, SHM_TYPE u32 *s_te3, SHM_TYPE u32 *s_te4, SHM_TYPE u32 *s_td0, SHM_TYPE u32 *s_td1, SHM_TYPE u32 *s_td2, SHM_TYPE u32 *s_td3, SHM_TYPE u32 *s_td4)
|
|
{
|
|
u32 ks_serpent[140];
|
|
|
|
u32 sk_twofish[4];
|
|
u32 lk_twofish[40];
|
|
|
|
u32 ks_aes[60];
|
|
|
|
u32 S[4] = { 0 };
|
|
|
|
u32 T_serpent[4] = { 0 };
|
|
u32 T_twofish[4] = { 0 };
|
|
u32 T_aes[4] = { 0 };
|
|
|
|
u32 data[4];
|
|
|
|
data[0] = data_buf[0];
|
|
data[1] = data_buf[1];
|
|
data[2] = data_buf[2];
|
|
data[3] = data_buf[3];
|
|
|
|
u32 tmp[4];
|
|
|
|
serpent256_decrypt_xts_first (ukey3, ukey6, data, tmp, S, T_serpent, ks_serpent);
|
|
twofish256_decrypt_xts_first (ukey2, ukey5, tmp, tmp, S, T_twofish, sk_twofish, lk_twofish);
|
|
aes256_decrypt_xts_first (ukey1, ukey4, tmp, tmp, S, T_aes, ks_aes, s_te0, s_te1, s_te2, s_te3, s_te4, s_td0, s_td1, s_td2, s_td3, s_td4);
|
|
|
|
if (tmp[0] != signature) return 0;
|
|
|
|
const u32 crc32_save = hc_swap32_S (~tmp[2]);
|
|
|
|
// seek to byte 256
|
|
|
|
for (int i = 4; i < 64 - 16; i += 4)
|
|
{
|
|
xts_mul2 (T_serpent, T_serpent);
|
|
xts_mul2 (T_twofish, T_twofish);
|
|
xts_mul2 (T_aes, T_aes);
|
|
}
|
|
|
|
// calculate crc32 from here
|
|
|
|
u32 crc32 = ~0;
|
|
|
|
for (int i = 64 - 16; i < 128 - 16; i += 4)
|
|
{
|
|
data[0] = data_buf[i + 0];
|
|
data[1] = data_buf[i + 1];
|
|
data[2] = data_buf[i + 2];
|
|
data[3] = data_buf[i + 3];
|
|
|
|
serpent256_decrypt_xts_next (data, tmp, T_serpent, ks_serpent);
|
|
twofish256_decrypt_xts_next (tmp, tmp, T_twofish, sk_twofish, lk_twofish);
|
|
aes256_decrypt_xts_next (tmp, tmp, T_aes, ks_aes, s_td0, s_td1, s_td2, s_td3, s_td4);
|
|
|
|
crc32 = round_crc32_4 (tmp[0], crc32);
|
|
crc32 = round_crc32_4 (tmp[1], crc32);
|
|
crc32 = round_crc32_4 (tmp[2], crc32);
|
|
crc32 = round_crc32_4 (tmp[3], crc32);
|
|
}
|
|
|
|
if (crc32 != crc32_save) return 0;
|
|
|
|
return 1;
|
|
}
|