tests/test_integers.py

#
#  Copyright 2011 Sybren A. Stüvel <sybren@stuvel.eu>
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.

'''Tests integer operations.'''

import unittest2

import rsa.core

class IntegerTest(unittest2.TestCase):

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

    def test_enc_dec(self):

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

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

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

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

        self.assertEqual(message, verified)