def decrypt_file(filename, keyfile, ivfile, decrypted_filename=None):
if not decrypted_filename:
decrypted_filename = filename.rstrip(".aes256")
ciphertext = load(filename)
key = load(keyfile)
plaintext = block.decrypt(key, ciphertext)
print "[+] decrypted %s to %s..." % (filename, decrypted_filename)
dump(decrypted_filename, plaintext)
print "[+] file written..."
def test_random_key():
key = block.generate_aes_key()
message = 'This is a sample message. 1234567890ABCDEF'
print '\t[+] test message: \'%s\'' % message
assert( len(key) == 32 )
iv = block.generate_nonce()
ct = block.encrypt( key, message, iv )
pt = block.decrypt( key, ct, iv )
assert( pt == message )
print '\t[+] successfully decrypted!'
def test_armoured():
key = block.generate_aes_key()
message = 'This is a sample message. 0123456789ABCDEF'
print '\t[+] test message: \'%s\'' % message
assert( len(key) == 32 )
iv = block.generate_nonce()
ct = block.encrypt( key, message, iv, armour = True )
print_ct = ct.replace('\n', '\n\t').rstrip()
print '\t[+] ciphertext: \n\t%s' % print_ct
pt = block.decrypt( key, ct )
assert( pt == message )
print '\t[+] successfully decrypted!'