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SLG_Crypto.py
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SLG_Crypto.py
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import struct
import time
class SLG_Crypto:
common_script_attacks = ((2, 0, 0, 2, 0),
(2, 0, 2, 0, 0),
(2, 2, 0, 0, 0),
(2, 0, 0, 0, 0),
(2, 0, 0, 0, 2))
basic_keys = ([0xbf8766f5, 'Sengoku Hime 5, 6'],
[0xca92f12b, 'Sengoku Hime 4'],
[0x08461c4d, 'Sengoku Hime 4 Trial'],
[0x3e9f9d19, 'Sangoku Hime 2'],
[0x5e950de7, 'Sangoku Hime 2 Trial'],
[0x00501e37, 'Sangoku Hime 1 Renewal (!)']) # !
# Инициализаторы.
def __init__(self, script, typer, mode, key):
self._script = ''
self.set_script(script)
self._type = []
self.set_type(typer)
self._mode = -1
self.set_mode(mode)
# 0 -- остановиться, 1 -- продожить.
self._key = 0
self.set_key(key)
self._known_keys = self._get_known_keys()
# Связь с пользователем.
##Установщики.
def set_script(self, new_script):
self._script = new_script
def set_type(self, new_type):
if (str(type(new_type)) == "<class 'list'>"):
self._type = tuple(self._type)
if (str(type(new_type)) != "<class 'tuple'>"):
self._type = self.common_script_attacks[0]
return False
self._type = new_type
return True
def set_mode(self, new_mode):
if ((new_mode != 1) and (new_mode != 0)):
self._mode = 0
return False
else:
self._mode = new_mode
return True
def set_key(self, new_key):
self._key = new_key
##Получальщики.
def get_script(self):
return self._script
def get_type(self):
return self._type
def get_mode(self):
return self._mode
def get_key(self):
return self._key
@staticmethod
def _get_known_keys():
zlo = []
for i in SLG_Crypto.basic_keys:
zlo.append(i)
try:
new_file = open('known_user_keys.txt', 'r')
keyers = new_file.readlines()
barada = []
for i in range(len(keyers)):
if ((i % 2) == 0):
barada.append(int(keyers[i][2:], 16))
else:
barada.append(keyers[i])
zlo.append(barada)
barada.clear()
except FileNotFoundError:
new_file = open('known_user_keys.txt', 'w')
new_file.close()
except Exception as ex:
print(ex)
zlo = tuple(zlo)
return zlo
##Связисты с техметодами.
def attack(self, txt_file, mode): # 0 -- script, 1 -- dat.
is_found = False
start_key = 0
file_output = open(txt_file, 'w')
file_output.close()
froms = []
from_file = open(self._script, 'rb')
for i in range(5):
froms.append(from_file.read(1)[0])
from_file.close()
froms = tuple(froms)
for i in self._known_keys:
result = self._chk_sootv(i[0], froms, self._type, mode)
if (result):
is_found = True
print(
"\n=== Найден стандартный ключ: " + hex(i[0]) + " к " + i[1] + ".\n=== Standart Key Found: " + hex(
i[0]) + ' to ' + i[1] + ".")
file_output = open(txt_file, 'a')
file_output.write(
"\n=== Найден стандартный ключ: " + hex(i[0]) + " к " + i[1] + ".\n=== Standart Key Found: " + hex(
i[0]) + ' to ' + i[1] + ".")
self._key = result
file_output.close()
if (self._mode == 0):
print("\n=== Поиск прерван.\n=== Search Terminated.")
file_output = open(txt_file, 'a')
file_output.write("\n=== Поиск прерван.\n=== Search Terminated.")
file_output.close()
return is_found
while (True):
result = self._attack_new_key(start_key, mode)
if (result == False):
print("\n=== Поиск окончен.\n=== Search Complete.")
file_output = open(txt_file, 'a')
file_output.write("\n=== Поиск окончен.\n=== Search Complete.")
file_output.close()
break
else:
try:
print("\n=== Найден ключ: " + hex(result) + ".\n=== Key Found: " + hex(result) + ".")
file_output = open(txt_file, 'a')
file_output.write("\n=== Найден ключ: " + hex(result) + ".\n=== Key Found: " + hex(result) + ".")
self._key = result
file_output.close()
is_found = True
except:
print("\n=== ПРОБЛЕМА! PROBLEM!", result)
file_output = open(txt_file, 'a')
file_output.write("\n=== ПРОБЛЕМА! PROBLEM!")
file_output.write(result)
file_output.close()
break
if (self._mode == 0):
print("\n=== Поиск прерван.\n=== Search Terminated.")
file_output = open(txt_file, 'a')
file_output.write("\n=== Поиск прерван.\n=== Search Terminated.")
file_output.close()
is_found = True
break
else:
start_key = result + 1
continue
return is_found
def decrypt(self, out_file, mode):
if (mode == 0):
self._decrypt_script(out_file)
else:
self._decrypt_dat(out_file)
print('\n=== Успешно расшифровано!\n=== Successfully Decrypted!')
def encrypt(self, out_file, mode):
if (mode == 0):
self._encrypt_script(out_file)
else:
self._encrypt_dat(out_file)
print('\n=== Успешно зашифровано!\n=== Successfully Encrypted!')
# Технические методы.
def _attack_new_key(self, starter, mode):
froms = []
from_file = open(self._script, 'rb')
for i in range(5):
froms.append(from_file.read(1)[0])
from_file.close()
froms = tuple(froms)
this_key = starter
timer_zero = time.time()
test_time_val = 10_000_000 # 10_000_000
test_count = 0
while (this_key < 0x100_000_000):
if (((test_count % test_time_val) == 0) and (test_count != 0)):
time_new = time.time()
print(hex(this_key), time_new - timer_zero, 'Ключ ещё не найден.../Key still not found...')
timer_zero = time_new
result = self._chk_sootv(this_key, froms, self._type, mode)
if (result):
return this_key
this_key += 1
test_count += 1
return False
def _decrypt_script(self, out_file):
this_key = self._key
enc_file = open(self._script, 'rb')
dec_file = open(out_file, 'wb')
new_byte = enc_file.read(1)
while (new_byte != b''):
this_key = self._convert_key(this_key, 0)
dec_file.write(struct.pack('B', new_byte[0] ^ (this_key % 256)))
new_byte = enc_file.read(1)
enc_file.close()
dec_file.close()
def _encrypt_script(self, out_file):
self._decrypt_script(out_file)
def _decrypt_dat(self, out_file):
this_key = self._key
enc_file = open(self._script, 'rb')
dec_file = open(out_file, 'wb')
new_byte = enc_file.read(1)
while (new_byte != b''):
this_key = self._convert_key(this_key, 1)
dec_file.write(struct.pack('B', (new_byte[0] - (this_key >> 16)) & 0xff))
new_byte = enc_file.read(1)
enc_file.close()
dec_file.close()
def _encrypt_dat(self, out_file):
this_key = self._key
enc_file = open(self._script, 'rb')
dec_file = open(out_file, 'wb')
new_byte = enc_file.read(1)
while (new_byte != b''):
this_key = self._convert_key(this_key, 1)
dec_file.write(struct.pack('B', (new_byte[0] + ((this_key >> 16) & 0xff)) % 256))
new_byte = enc_file.read(1)
enc_file.close()
dec_file.close()
# Подсобные техметоды.
def _convert_key(self, key, mode):
key *= 0x343fd
key += 0x269ec3
key &= 0xffffffff
if (mode == 0):
key >>= 16
key &= 0x7fff
return key
def _chk_sootv(self, key, froms, toes, mode):
if (len(froms) != len(toes)):
raise TypeError("Некорректные длины!\nIncorrect lens!")
rez = 0
for i in range(len(froms)):
key = self._convert_key(key, mode)
if (mode == 0):
rez = froms[i] ^ (key & 0xff)
elif (mode == 2):
rez = (froms[i] + (key >> 16)) & 0xff
else:
rez = (froms[i] - (key >> 16)) & 0xff
if (rez == toes[i]):
continue
else:
return False
return True