Add distributed brute solver and datafiles.

Author: Bill Schumacher

python/key_solver_bruteforce_client.py

@@ -0,0 +1,85 @@
+import itertools
+import os
+import sys
+from datetime import datetime, timedelta
+
+import zmq
+from Crypto.Cipher import AES
+
+filename = 'emotiv_encrypted_data_UD20160103001874_2017-04-05.17-21-32.384061.txt'
+# filename = 'emotiv_encrypted_data_UD20160103001874_2017-04-05.17-42-23.292665.txt'
+serial_number = 'UD20160103001874'
+iv = os.urandom(AES.block_size)
+
+# Probably need to expand this and probably use a serial brute force like approach, but meh
+# Lets just see if it works.
+charset = [char for char in serial_number[-4:]]
+charset.extend(['\x00', '\x10', 'H', 'T', 'B', 'P'])
+possible_combinations = len(charset) * 16 * 16
+
+
+# Credit http://stackoverflow.com/questions/11747254/python-brute-force-algorithm
+def next_value():
+    return (''.join(candidate)
+            for candidate in itertools.chain.from_iterable(itertools.product(charset, repeat=i)
+                                                           for i in range(16, 16 + 1)))
+
+
+def counter_check(file_data, cipher, swap_data=False):
+    counter_misses = 0
+    counter_checks = 0
+    last_counter = 0
+    for line in file_data:
+        data = line.split(',')[1:]
+        data = [int(value, 2) for value in data]
+        data = ''.join(map(chr, data))
+        if not swap_data:
+            decrypted = cipher.decrypt(data[:16]) + cipher.decrypt(data[16:])
+        else:
+            decrypted = cipher.decrypt(data[16:]) + cipher.decrypt(data[:16])
+        counter = ord(decrypted[0])
+        # Uncomment this
+        # print(counter)
+        if counter <= 127:
+            if counter != last_counter + 1:
+                counter_misses += 1
+        elif not (counter == 0 and last_counter > 127):
+            counter_misses += 1
+        if counter_misses > 2 and counter_checks > 16:
+            return False
+        if counter_checks > 16 and counter_misses < 2:
+            return True
+        counter_checks += 1
+        last_counter = counter
+
+
+with open('{}'.format(filename), 'r') as encrypted_data:
+    file_data = encrypted_data.readlines()
+
+
+def check_key(next_check):
+    new_cipher = AES.new(''.join(next_check), AES.MODE_ECB, iv)
+    if counter_check(file_data, new_cipher):
+        print("Correct Key Found! {}".format(next_check))
+        sys.exit()
+
+
+context = zmq.Context()
+socket = context.socket(zmq.REQ)
+socket.connect('tcp://{}:{}'.format('127.0.0.1', 1777))
+then = datetime.now()
+i = 0
+last_i = 0
+key_to_validate = ""
+while True:
+    i += 1
+    now = datetime.now()
+    if now - then > timedelta(minutes=1):
+        print("{} keys per second, last key {}".format((i - last_i) / 60, key_to_validate))
+        last_i = i
+        then = datetime.now()
+    socket.send('next')
+    key_to_validate = socket.recv()
+    if check_key(key_to_validate):
+        socket.send('validate {}'.format(key_to_validate))
+        print(socket.recv())

python/key_solver_bruteforce_server.py

@@ -0,0 +1,100 @@
+import itertools
+import os
+import sys
+from datetime import datetime, timedelta
+
+import zmq
+from Crypto.Cipher import AES
+
+filename = 'emotiv_encrypted_data_UD20160103001874_2017-04-05.17-21-32.384061.txt'
+# filename = 'emotiv_encrypted_data_UD20160103001874_2017-04-05.17-42-23.292665.txt'
+serial_number = 'UD20160103001874'
+iv = os.urandom(AES.block_size)
+
+# Probably need to expand this and probably use a serial brute force like approach, but meh
+# Lets just see if it works.
+charset = [char for char in serial_number[-4:]]
+charset.extend(['\x00', '\x10', 'H', 'T', 'B', 'P'])
+possible_combinations = len(charset) * 16 * 16
+
+
+# Credit http://stackoverflow.com/questions/11747254/python-brute-force-algorithm
+def next_value():
+    return (''.join(candidate)
+            for candidate in itertools.chain.from_iterable(itertools.product(charset, repeat=i)
+                                                           for i in range(16, 16 + 1)))
+
+
+def nex():
+    for value in next_value():
+        yield value
+
+
+def counter_check(file_data, cipher, swap_data=False):
+    counter_misses = 0
+    counter_checks = 0
+    last_counter = 0
+    for line in file_data:
+        data = line.split(',')[1:]
+        data = [int(value, 2) for value in data]
+        data = ''.join(map(chr, data))
+        if not swap_data:
+            decrypted = cipher.decrypt(data[:16]) + cipher.decrypt(data[16:])
+        else:
+            decrypted = cipher.decrypt(data[16:]) + cipher.decrypt(data[:16])
+        counter = ord(decrypted[0])
+        # Uncomment this
+        # print(counter)
+        if counter <= 127:
+            if counter != last_counter + 1:
+                counter_misses += 1
+        elif not (counter == 0 and last_counter > 127):
+            counter_misses += 1
+        if counter_misses > 2 and counter_checks > 64:
+            return False
+        if counter_checks > 64 and counter_misses < 2:
+            return True
+        counter_checks += 1
+        last_counter = counter
+
+
+with open('{}'.format(filename), 'r') as encrypted_data:
+    file_data = encrypted_data.readlines()
+
+
+def check_key(next_check):
+    new_cipher = AES.new(''.join(next_check), AES.MODE_ECB, iv)
+    if counter_check(file_data, new_cipher):
+        print("Correct Key Found! {}".format(next_check))
+        sys.exit()
+
+
+context = zmq.Context()
+socket = context.socket(zmq.REP)
+socket.bind('tcp://{}:{}'.format('*', 1777))
+then = datetime.now()
+i = 0
+last_i = 0
+key_to_check = ""
+print('running')
+for value in next_value():
+    i += 1
+    now = datetime.now()
+    if now - then > timedelta(minutes=1):
+        print("{} keys per second, last key {}".format((i - last_i) / 60, value))
+        last_i = i
+        then = now
+    message = ""
+    while message != 'next':
+        message = socket.recv()
+        if message == 'next':
+            socket.send(''.join(value))
+        elif message.startswith('validate ') and 42 > len(message) > 9:
+            key_to_validate = message.split()[1]
+            if check_key(key_to_validate):
+                socket.send("LGTM")
+                print("Valid Key: {}".format(key_to_validate))
+            else:
+                socket.send("NOPE")
+        else:
+            socket.send('uhh what')