35 lines
984 B
35 lines
984 B
"""Encryption module that uses pycryptopp or pycrypto"""
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try:
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# Pycryptopp is preferred over Crypto because Crypto has had
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# various periods of not being maintained, and pycryptopp uses
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# the Crypto++ library which is generally considered the 'gold standard'
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# of crypto implementations
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from pycryptopp.cipher import aes
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def aesEncrypt(data, key):
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cipher = aes.AES(key)
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return cipher.process(data)
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# magic.
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aesDecrypt = aesEncrypt
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except ImportError:
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from Crypto.Cipher import AES
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from Crypto.Util import Counter
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def aesEncrypt(data, key):
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cipher = AES.new(key, AES.MODE_CTR,
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counter=Counter.new(128, initial_value=0))
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return cipher.encrypt(data)
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def aesDecrypt(data, key):
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cipher = AES.new(key, AES.MODE_CTR,
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counter=Counter.new(128, initial_value=0))
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return cipher.decrypt(data)
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has_aes = True
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def getKeyLength():
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return 32
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