/usr/lib/python2.7/dist-packages/beaker/crypto/pycrypto.py is in python-beaker 1.6.4-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | """Encryption module that uses pycryptopp or pycrypto"""
try:
# Pycryptopp is preferred over Crypto because Crypto has had
# various periods of not being maintained, and pycryptopp uses
# the Crypto++ library which is generally considered the 'gold standard'
# of crypto implementations
from pycryptopp.cipher import aes
def aesEncrypt(data, key):
cipher = aes.AES(key)
return cipher.process(data)
# magic.
aesDecrypt = aesEncrypt
except ImportError:
from Crypto.Cipher import AES
from Crypto.Util import Counter
def aesEncrypt(data, key):
cipher = AES.new(key, AES.MODE_CTR,
counter=Counter.new(128, initial_value=0))
return cipher.encrypt(data)
def aesDecrypt(data, key):
cipher = AES.new(key, AES.MODE_CTR,
counter=Counter.new(128, initial_value=0))
return cipher.decrypt(data)
def getKeyLength():
return 32
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