55 lines
1.6 KiB
Python
55 lines
1.6 KiB
Python
"""
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Test if OpenSSL is working correctly
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"""
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import unittest
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from pybitmessage.pyelliptic.openssl import OpenSSL
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try:
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OpenSSL.BN_bn2binpad
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have_pad = True
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except AttributeError:
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have_pad = None
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class TestOpenSSL(unittest.TestCase):
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"""
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Test cases for OpenSSL
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"""
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def test_is_odd(self):
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"""Test BN_is_odd implementation"""
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ctx = OpenSSL.BN_CTX_new()
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a = OpenSSL.BN_new()
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group = OpenSSL.EC_GROUP_new_by_curve_name(
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OpenSSL.get_curve("secp256k1"))
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OpenSSL.EC_GROUP_get_order(group, a, ctx)
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bad = 0
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for _ in range(1024):
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OpenSSL.BN_rand(a, OpenSSL.BN_num_bits(a), 0, 0)
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if not OpenSSL.BN_is_odd(a) == OpenSSL.BN_is_odd_compatible(a):
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bad += 1
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self.assertEqual(bad, 0)
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@unittest.skipUnless(have_pad, 'Skipping OpenSSL pad test')
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def test_padding(self):
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"""Test an alternatie implementation of bn2binpad"""
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ctx = OpenSSL.BN_CTX_new()
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a = OpenSSL.BN_new()
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n = OpenSSL.BN_new()
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group = OpenSSL.EC_GROUP_new_by_curve_name(
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OpenSSL.get_curve("secp256k1"))
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OpenSSL.EC_GROUP_get_order(group, n, ctx)
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bad = 0
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for _ in range(1024):
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OpenSSL.BN_rand(a, OpenSSL.BN_num_bits(n), 0, 0)
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b = OpenSSL.malloc(0, OpenSSL.BN_num_bytes(n))
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c = OpenSSL.malloc(0, OpenSSL.BN_num_bytes(a))
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OpenSSL.BN_bn2binpad(a, b, OpenSSL.BN_num_bytes(n))
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OpenSSL.BN_bn2bin(a, c)
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if b.raw != c.raw.rjust(OpenSSL.BN_num_bytes(n), chr(0)):
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bad += 1
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self.assertEqual(bad, 0)
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