<s> import binascii <EOL> def symmetric_encrypt ( encrypt_key , message ) : <EOL> """<STR_LIT>""" <EOL> return binascii . hexlify ( encrypt_key . Encrypt ( message ) ) . upper ( ) <EOL> def symmetric_decrypt ( decrypt_key , crypto ) : <EOL> """<STR_LIT>""" <EOL> return decrypt_key . Decrypt ( binascii . unhexlify ( crypto ) ) </s>
