common.py 文件源码

def runTest(self):
        plaintext = a2b_hex(self.plaintext)
        ciphertext = a2b_hex(self.ciphertext)

        ct1 = b2a_hex(self._new().encrypt(plaintext))
        pt1 = b2a_hex(self._new(1).decrypt(ciphertext))
        ct2 = b2a_hex(self._new().encrypt(plaintext))
        pt2 = b2a_hex(self._new(1).decrypt(ciphertext))

        if hasattr(self.module, "MODE_OPENPGP") and self.mode == self.module.MODE_OPENPGP:
            # In PGP mode, data returned by the first encrypt()
            # is prefixed with the encrypted IV.
            # Here we check it and then remove it from the ciphertexts.
            eilen = len(self.encrypted_iv)
            self.assertEqual(self.encrypted_iv, ct1[:eilen])
            self.assertEqual(self.encrypted_iv, ct2[:eilen])
            ct1 = ct1[eilen:]
            ct2 = ct2[eilen:]

        self.assertEqual(self.ciphertext, ct1)  # encrypt
        self.assertEqual(self.ciphertext, ct2)  # encrypt (second time)
        self.assertEqual(self.plaintext, pt1)   # decrypt
        self.assertEqual(self.plaintext, pt2)   # decrypt (second time)