Viewing file:  test_dh.py (1.5 KB) -rw-r--r--
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#!/usr/bin/env python
"""Unit tests for M2Crypto.DH.
Copyright (c) 2000 Ng Pheng Siong. All rights reserved."""
import unittest
from M2Crypto import DH, BIO, Rand, m2
class DHTestCase(unittest.TestCase):
params = 'dhparam.pem'
def genparam_callback(self, *args):
pass
def genparam_callback2(self):
pass
def check_init_junk(self):
self.assertRaises(TypeError, DH.DH, 'junk')
def check_gen_params(self):
a = DH.gen_params(128, 2, self.genparam_callback)
assert a.check_params() == 0
def check_gen_params_bad_cb(self):
a = DH.gen_params(128, 2, self.genparam_callback2)
assert a.check_params() == 0
def check_print_params(self):
a = DH.gen_params(128, 2, self.genparam_callback)
bio = BIO.MemoryBuffer()
a.print_params(bio)
params = bio.read()
assert params.find('(128 bit)')
assert params.find('generator: 2 (0x2)')
def check_load_params(self):
a = DH.load_params('dhparams.pem')
assert a.check_params() == 0
def check_compute_key(self):
a = DH.load_params('dhparams.pem')
b = DH.set_params(a.p, a.g)
a.gen_key()
b.gen_key()
ak = a.compute_key(b.pub)
bk = b.compute_key(a.pub)
assert ak == bk
def suite():
return unittest.makeSuite(DHTestCase, 'check_')
if __name__=='__main__':
Rand.load_file('randpool.dat', -1)
unittest.TextTestRunner().run(suite())
Rand.save_file('randpool.dat')
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