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-rw-r--r--pyload/lib/beaker/crypto/pycrypto.py34
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diff --git a/pyload/lib/beaker/crypto/pycrypto.py b/pyload/lib/beaker/crypto/pycrypto.py
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+++ b/pyload/lib/beaker/crypto/pycrypto.py
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+"""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