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45 lines
1003 B
Python
Executable File
45 lines
1003 B
Python
Executable File
#!/usr/bin/python
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import botan
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import sys
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def encrypt(input, passphrase):
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rng = botan.RandomNumberGenerator()
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# Use as both EAX IV and PBKDF2 salt
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salt = rng.gen_random(10)
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iterations = 10000
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output_size = 16
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key = botan.pbkdf2(passphrase, salt, iterations, output_size, "SHA-1")
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encryptor = botan.Cipher("AES-128/EAX", "encrypt", key)
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ciphertext = encryptor.cipher(input, salt)
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return (ciphertext, salt)
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def decrypt(input, salt, passphrase):
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iterations = 10000
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output_size = 16
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key = botan.pbkdf2(passphrase, salt, iterations, output_size, "SHA-1")
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decryptor = botan.Cipher("AES-128/EAX", "decrypt", key)
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return decryptor.cipher(input, salt)
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def main(args = None):
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if args is None:
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args = sys.argv
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passphrase = args[1]
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input = ''.join(open(args[2]).readlines())
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(ciphertext, salt) = encrypt(input, passphrase)
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print decrypt(ciphertext, salt, passphrase)
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if __name__ == '__main__':
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sys.exit(main())
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