class UDPSocket(object):
"""Abstraction over socket object. Implements (de)encryption and (de)serialization."""
def __init__(self, socket):
self.socket = socket
self.cipher = Blowfish(KEY)
def recv(self):
self.cipher.initCTR()
yield ReadWait(self.socket) # put socket to waitforread buffer
packet, addr = self.socket.recvfrom(PACKET_SIZE)
yield (pickle.loads(self.cipher.decryptCTR(packet)) , addr)
def send(self, packet, addr):
self.cipher.initCTR()
#yield WriteWait(self.socket) # put socket to waitforwrite buffer(TCP)
if len(addr) > 2:
addr = (addr[0], addr[1])
self.socket.sendto(self.cipher.encryptCTR(pickle.dumps(packet)), addr)
def close(self):
self.socket.close()
class AppdataManager(Pyro.core.SynchronizedObjBase):
def __init__(self,
appdataFileName=abspath('data/appdata.xml'),
encryptionKey=''):
PsLogger().info('AppdataTag', 'AppdataManager initialization')
global _
_ = lambda translationString: self.translateString(translationString)
Pyro.core.SynchronizedObjBase.__init__(self)
self.appdataRoot = None
self.encryptionKey = encryptionKey
self.publicCipher = Blowfish(self.encryptionKey)
self.appdataFileName = appdataFileName
self.lock = threading.RLock()
def publicEncryptDecryptString(self, inputValue, operation):
PsLogger().info('AppdataTag', "publicEncryptDecryptString")
self.lock.acquire()
try:
PsLogger().info('AppdataLockTag', "lock acquired")
self.publicCipher.initCTR()
if operation == 'encrypt':
inputValue = inputValue.encode('utf-8')
outputValue = self.publicCipher.encryptCTR(inputValue)
else:
outputValue = self.publicCipher.decryptCTR(inputValue)
outputValue = outputValue.decode('utf-8')
except BaseException, e:
PsLogger().warning(['AppdataTag', 'ExceptionTag'], str(e))
outputValue = None
PsLogger().info('AppdataTag', str(e))
finally:
def _decrypt_yaml(e_yaml_stream, key):
"""
Function that does the decryption of the YAML document with the specified key.
The stream can be any of the types of streams support by the PyYaml module (strings,
unicode strings, or file objects)
"""
##We have to read the file so ensure we can reset it to where it was when passed
if type(e_yaml_stream) == types.FileType:
curr_poss = e_yaml_stream.tell()
e_yaml_data = e_yaml_stream.read()
else:
e_yaml_data = e_yaml_stream
##Skip first line as it's the magic header
pos = e_yaml_data.find("\n\n")
if pos != -1:
e_yaml_data = e_yaml_data[pos + 2:]
##Decrypt stream
try:
bfish = Blowfish(key)
bfish.initCTR()
yaml_data = bfish.decryptCTR(e_yaml_data)
except Exception, err:
raise EncryptedYamlException("Problem decrypting the YAML file - %s" %
(err))
class BlowfishWrapper(object):
""" Create Blowfish crypto object """
def __init__(self, key):
self.name = 'blowfish'
key_448 = self.__generate448key(key)
self.blowfish = Blowfish(key_448)
def __generate448key(self, key):
sha512password = hashlib.sha512(key).digest()
return sha512password[:56] # Using the first 56 bytes only (448 bits)
def encrypt(self, message):
self.blowfish.initCTR()
return self.blowfish.encryptCTR(message)
def decrypt(self, encrypted):
self.blowfish.initCTR()
return self.blowfish.decryptCTR(encrypted)
class UDPSocket(object):
"""Abstraction over socket object. Implements (de)encryption and (de)serialization."""
def __init__(self, socket):
self.socket = socket
self.cipher = Blowfish(KEY)
def recv(self):
self.cipher.initCTR()
yield ReadWait(self.socket) # put socket to waitforread buffer
packet, addr = self.socket.recvfrom(PACKET_SIZE)
yield (pickle.loads(self.cipher.decryptCTR(packet)), addr)
def send(self, packet, addr):
self.cipher.initCTR()
#yield WriteWait(self.socket) # put socket to waitforwrite buffer(TCP)
if len(addr) > 2:
addr = (addr[0], addr[1])
self.socket.sendto(self.cipher.encryptCTR(pickle.dumps(packet)), addr)
def close(self):
self.socket.close()
key = a
keylen = len(key)
if keylen not in (8,16,24,32,40,48,56):
print "\tKey must be a multiple of 8 bytes (up to a maximum of 56"
sys.exit(3)
elif o in ("-d", "--decrypt"):
decrypt = True
else:
assert False, "unhandled option"
cipher = Blowfish(key)
cipher.initCTR()
if decrypt == False:
crypted = binascii.hexlify(cipher.encryptCTR(text))
if (len(crypted) < 140):
client = twitter.Api(username=twitter_user, password=twitter_password)
update = client.PostUpdate(crypted)
else:
print "\tYour message was too long, it should be less than 140 characters. It was\t", len(crypted)
print "\tEncrypted message:\t", crypted
else:
decrypted = cipher.decryptCTR(binascii.unhexlify(text))
print "\tDecrypted message:\t", decrypted
def usage():
print "\tUsage:\t twit.py [--decrypt] --message=\"My message\" --key=key"
print "\tOptions can also be passed in short form as [-d] -m and -k"
print "\tThe key must be a multiple of 8 bytes (up to a maximum of 56)."
if __name__ == "__main__":
main()
def decrypt(key, edata):
h = hashlib.sha1()
h.update(key)
cipher = Blowfish(h.hexdigest())
cipher.initCTR()
return cipher.decryptCTR(edata)
from blowfish import Blowfish
if __name__ == '__main__':
if not Blowfish.testVectors():
print "WARNING: The implementation doesn't pass algorithm test vectors!"
else:
print "The implementation passes algorithm test vectors (ECB)."
key = open("key.txt", "r").read()
cipher = Blowfish(key)
# print "Testing block encrypt:"
# text = 'testtest'
# print "\tText:\t\t%s" % text
# crypted = cipher.encrypt(text)
# print "\tEncrypted:\t%s" % repr(crypted)
# decrypted = cipher.decrypt(crypted)
# print "\tDecrypted:\t%s" % decrypted
print "Testing CTR encrypt:"
cipher.initCTR()
text = str(open("input.txt", "r").read())
print "\tText:\t\t", text
crypted = cipher.encryptCTR(text)
print "\tEncrypted:\t", repr(crypted)
cipher.initCTR()
decrypted = cipher.decryptCTR(crypted)
print "\tDecrypted:\t", decrypted
def decrypt(encoded_str): b = Blowfish(greentea_gingerale) b.initCTR() return b.decryptCTR(b64decode(encoded_str))
def decrypt_data(decoded_data, cipher_key):
cipher_decrypt = Blowfish(cipher_key)
return cipher_decrypt.decryptCTR(decoded_data)
