'''Tests integer operations.'''

import unittest

import rsa

class IntegerTest(unittest.TestCase):

    def setUp(self):
        (self.pub, self.priv) = rsa.newkeys(64)

    def test_enc_dec(self):

        message = 42
        print "\tMessage:   %d" % message

        encrypted = rsa.encrypt_int(message, self.pub['e'], self.pub['n'])
        print "\tEncrypted: %d" % encrypted

        decrypted = rsa.decrypt_int(encrypted, self.priv['d'], self.pub['n'])
        print "\tDecrypted: %d" % decrypted

        self.assertEqual(message, decrypted)

    def test_sign_verify(self):

        message = 42

        signed = rsa.encrypt_int(message,self.priv['d'], self.pub['n'])
        print "\tSigned:    %d" % signed

        verified = rsa.decrypt_int(signed, self.pub['e'],self.pub['n'])
        print "\tVerified:  %d" % verified

        self.assertEqual(message, verified)