diff options
Diffstat (limited to 'lib/Crypto/SelfTest/Util')
| -rw-r--r-- | lib/Crypto/SelfTest/Util/__init__.py | 45 | ||||
| -rw-r--r-- | lib/Crypto/SelfTest/Util/test_Counter.py | 155 | ||||
| -rw-r--r-- | lib/Crypto/SelfTest/Util/test_Padding.py | 140 | ||||
| -rw-r--r-- | lib/Crypto/SelfTest/Util/test_asn1.py | 657 | ||||
| -rw-r--r-- | lib/Crypto/SelfTest/Util/test_number.py | 338 | ||||
| -rw-r--r-- | lib/Crypto/SelfTest/Util/test_winrandom.py | 48 |
6 files changed, 1383 insertions, 0 deletions
diff --git a/lib/Crypto/SelfTest/Util/__init__.py b/lib/Crypto/SelfTest/Util/__init__.py new file mode 100644 index 0000000..f404d0b --- /dev/null +++ b/lib/Crypto/SelfTest/Util/__init__.py @@ -0,0 +1,45 @@ +# -*- coding: utf-8 -*- +# +# SelfTest/Util/__init__.py: Self-test for utility modules +# +# Written in 2008 by Dwayne C. Litzenberger <dlitz@dlitz.net> +# +# =================================================================== +# The contents of this file are dedicated to the public domain. To +# the extent that dedication to the public domain is not available, +# everyone is granted a worldwide, perpetual, royalty-free, +# non-exclusive license to exercise all rights associated with the +# contents of this file for any purpose whatsoever. +# No rights are reserved. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS +# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +# SOFTWARE. +# =================================================================== + +"""Self-test for utility modules""" + +__revision__ = "$Id$" + +import os + +def get_tests(config={}): + tests = [] + if os.name == 'nt': + from Crypto.SelfTest.Util import test_winrandom; tests += test_winrandom.get_tests(config=config) + from Crypto.SelfTest.Util import test_number; tests += test_number.get_tests(config=config) + from Crypto.SelfTest.Util import test_Counter; tests += test_Counter.get_tests(config=config) + from Crypto.SelfTest.Util import test_Padding; tests += test_Padding.get_tests(config=config) + return tests + +if __name__ == '__main__': + import unittest + suite = lambda: unittest.TestSuite(get_tests()) + unittest.main(defaultTest='suite') + +# vim:set ts=4 sw=4 sts=4 expandtab: diff --git a/lib/Crypto/SelfTest/Util/test_Counter.py b/lib/Crypto/SelfTest/Util/test_Counter.py new file mode 100644 index 0000000..7dbfc97 --- /dev/null +++ b/lib/Crypto/SelfTest/Util/test_Counter.py @@ -0,0 +1,155 @@ +# -*- coding: utf-8 -*- +# +# SelfTest/Util/test_Counter: Self-test for the Crypto.Util.Counter module +# +# Written in 2009 by Dwayne C. Litzenberger <dlitz@dlitz.net> +# +# =================================================================== +# The contents of this file are dedicated to the public domain. To +# the extent that dedication to the public domain is not available, +# everyone is granted a worldwide, perpetual, royalty-free, +# non-exclusive license to exercise all rights associated with the +# contents of this file for any purpose whatsoever. +# No rights are reserved. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS +# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +# SOFTWARE. +# =================================================================== + +"""Self-tests for Crypto.Util.Counter""" + +__revision__ = "$Id$" + +import sys +if sys.version_info[0] == 2 and sys.version_info[1] == 1: + from Crypto.Util.py21compat import * +from Crypto.Util.py3compat import * + +import unittest + +class CounterTests(unittest.TestCase): + def setUp(self): + global Counter + from Crypto.Util import Counter + + def test_BE_shortcut(self): + """Big endian""" + c = Counter.new(128) + c = Counter.new(128, little_endian=False) + + def test_LE_shortcut(self): + """Little endian""" + c = Counter.new(128, little_endian=True) + + def test_BE_no_shortcut(self): + """Big endian, with disable_shortcut""" + # Just testing API backward-compatibility. disable_shortcut is now a no-op. + c = Counter.new(128, disable_shortcut=True) + c = Counter.new(128, little_endian=False, disable_shortcut=True) + + def test_LE_no_shortcut(self): + """Little endian, shortcut disabled""" + # Just testing API backward-compatibility. disable_shortcut is now a no-op. + c = Counter.new(128, little_endian=True, disable_shortcut=True) + + def test_BE_defaults(self): + """128-bit, Big endian, defaults""" + c = Counter.new(128) + self.assertEqual(1, c.next_value()) + self.assertEqual(b("\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01"), c()) + self.assertEqual(2, c.next_value()) + self.assertEqual(b("\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02"), c()) + for i in xrange(3, 256): + self.assertEqual(i, c.next_value()) + self.assertEqual(b("\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00")+bchr(i), c()) + self.assertEqual(256, c.next_value()) + self.assertEqual(b("\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00"), c()) + + def test_LE_defaults(self): + """128-bit, Little endian, defaults""" + c = Counter.new(128, little_endian=True) + self.assertEqual(1, c.next_value()) + self.assertEqual(b("\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"), c()) + self.assertEqual(2, c.next_value()) + self.assertEqual(b("\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"), c()) + for i in xrange(3, 256): + self.assertEqual(i, c.next_value()) + self.assertEqual(bchr(i)+b("\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"), c()) + self.assertEqual(256, c.next_value()) + self.assertEqual(b("\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"), c()) + + def test_BE8_wraparound(self): + """8-bit, Big endian, wraparound""" + c = Counter.new(8) + for i in xrange(1, 256): + self.assertEqual(i, c.next_value()) + self.assertEqual(bchr(i), c()) + self.assertRaises(OverflowError, c.next_value) + self.assertRaises(OverflowError, c) + self.assertRaises(OverflowError, c.next_value) + self.assertRaises(OverflowError, c) + + def test_LE8_wraparound(self): + """8-bit, Little endian, wraparound""" + c = Counter.new(8, little_endian=True) + for i in xrange(1, 256): + self.assertEqual(i, c.next_value()) + self.assertEqual(bchr(i), c()) + self.assertRaises(OverflowError, c.next_value) + self.assertRaises(OverflowError, c) + self.assertRaises(OverflowError, c.next_value) + self.assertRaises(OverflowError, c) + + def test_BE8_wraparound_allowed(self): + """8-bit, Big endian, wraparound with allow_wraparound=True""" + c = Counter.new(8, allow_wraparound=True) + for i in xrange(1, 256): + self.assertEqual(i, c.next_value()) + self.assertEqual(bchr(i), c()) + self.assertEqual(0, c.next_value()) + self.assertEqual(b("\x00"), c()) + self.assertEqual(1, c.next_value()) + + def test_LE8_wraparound_allowed(self): + """8-bit, Little endian, wraparound with allow_wraparound=True""" + c = Counter.new(8, little_endian=True, allow_wraparound=True) + for i in xrange(1, 256): + self.assertEqual(i, c.next_value()) + self.assertEqual(bchr(i), c()) + self.assertEqual(0, c.next_value()) + self.assertEqual(b("\x00"), c()) + self.assertEqual(1, c.next_value()) + + def test_BE8_carry(self): + """8-bit, Big endian, carry attribute""" + c = Counter.new(8) + for i in xrange(1, 256): + self.assertEqual(0, c.carry) + self.assertEqual(i, c.next_value()) + self.assertEqual(bchr(i), c()) + self.assertEqual(1, c.carry) + + def test_LE8_carry(self): + """8-bit, Little endian, carry attribute""" + c = Counter.new(8, little_endian=True) + for i in xrange(1, 256): + self.assertEqual(0, c.carry) + self.assertEqual(i, c.next_value()) + self.assertEqual(bchr(i), c()) + self.assertEqual(1, c.carry) + +def get_tests(config={}): + from Crypto.SelfTest.st_common import list_test_cases + return list_test_cases(CounterTests) + +if __name__ == '__main__': + suite = lambda: unittest.TestSuite(get_tests()) + unittest.main(defaultTest='suite') + +# vim:set ts=4 sw=4 sts=4 expandtab: diff --git a/lib/Crypto/SelfTest/Util/test_Padding.py b/lib/Crypto/SelfTest/Util/test_Padding.py new file mode 100644 index 0000000..b8a01ab --- /dev/null +++ b/lib/Crypto/SelfTest/Util/test_Padding.py @@ -0,0 +1,140 @@ +# -*- coding: utf-8 -*- +# +# SelfTest/Util/test_Padding.py: Self-test for padding functions +# +# =================================================================== +# The contents of this file are dedicated to the public domain. To +# the extent that dedication to the public domain is not available, +# everyone is granted a worldwide, perpetual, royalty-free, +# non-exclusive license to exercise all rights associated with the +# contents of this file for any purpose whatsoever. +# No rights are reserved. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS +# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +# SOFTWARE. +# =================================================================== + +import unittest +from binascii import unhexlify as uh + +from Crypto.Util.py3compat import * +from Crypto.SelfTest.st_common import list_test_cases +from Crypto.Util.Padding import pad, unpad + +class PKCS7_Tests(unittest.TestCase): + + def test1(self): + padded = pad(b(""), 4) + self.failUnless(padded == uh(b("04040404"))) + padded = pad(b(""), 4, 'pkcs7') + self.failUnless(padded == uh(b("04040404"))) + back = unpad(padded, 4) + self.failUnless(back == b("")) + + def test2(self): + padded = pad(uh(b("12345678")), 4) + self.failUnless(padded == uh(b("1234567804040404"))) + back = unpad(padded, 4) + self.failUnless(back == uh(b("12345678"))) + + def test3(self): + padded = pad(uh(b("123456")), 4) + self.failUnless(padded == uh(b("12345601"))) + back = unpad(padded, 4) + self.failUnless(back == uh(b("123456"))) + + def test4(self): + padded = pad(uh(b("1234567890")), 4) + self.failUnless(padded == uh(b("1234567890030303"))) + back = unpad(padded, 4) + self.failUnless(back == uh(b("1234567890"))) + + def testn1(self): + self.assertRaises(ValueError, pad, uh(b("12")), 4, 'pkcs8') + + def testn2(self): + self.assertRaises(ValueError, unpad, b("\0\0\0"), 4) + + def testn3(self): + self.assertRaises(ValueError, unpad, b("123456\x02"), 4) + self.assertRaises(ValueError, unpad, b("123456\x00"), 4) + self.assertRaises(ValueError, unpad, b("123456\x05\x05\x05\x05\x05"), 4) + +class X923_Tests(unittest.TestCase): + + def test1(self): + padded = pad(b(""), 4, 'x923') + self.failUnless(padded == uh(b("00000004"))) + back = unpad(padded, 4, 'x923') + self.failUnless(back == b("")) + + def test2(self): + padded = pad(uh(b("12345678")), 4, 'x923') + self.failUnless(padded == uh(b("1234567800000004"))) + back = unpad(padded, 4, 'x923') + self.failUnless(back == uh(b("12345678"))) + + def test3(self): + padded = pad(uh(b("123456")), 4, 'x923') + self.failUnless(padded == uh(b("12345601"))) + back = unpad(padded, 4, 'x923') + self.failUnless(back == uh(b("123456"))) + + def test4(self): + padded = pad(uh(b("1234567890")), 4, 'x923') + self.failUnless(padded == uh(b("1234567890000003"))) + back = unpad(padded, 4, 'x923') + self.failUnless(back == uh(b("1234567890"))) + + def testn1(self): + self.assertRaises(ValueError, unpad, b("123456\x02"), 4, 'x923') + self.assertRaises(ValueError, unpad, b("123456\x00"), 4, 'x923') + self.assertRaises(ValueError, unpad, b("123456\x00\x00\x00\x00\x05"), 4, 'x923') + +class ISO7816_Tests(unittest.TestCase): + + def test1(self): + padded = pad(b(""), 4, 'iso7816') + self.failUnless(padded == uh(b("80000000"))) + back = unpad(padded, 4, 'iso7816') + self.failUnless(back == b("")) + + def test2(self): + padded = pad(uh(b("12345678")), 4, 'iso7816') + self.failUnless(padded == uh(b("1234567880000000"))) + back = unpad(padded, 4, 'iso7816') + self.failUnless(back == uh(b("12345678"))) + + def test3(self): + padded = pad(uh(b("123456")), 4, 'iso7816') + self.failUnless(padded == uh(b("12345680"))) + #import pdb; pdb.set_trace() + back = unpad(padded, 4, 'iso7816') + self.failUnless(back == uh(b("123456"))) + + def test4(self): + padded = pad(uh(b("1234567890")), 4, 'iso7816') + self.failUnless(padded == uh(b("1234567890800000"))) + back = unpad(padded, 4, 'iso7816') + self.failUnless(back == uh(b("1234567890"))) + + def testn1(self): + self.assertRaises(ValueError, unpad, b("123456\x81"), 4, 'iso7816') + +def get_tests(config={}): + tests = [] + tests += list_test_cases(PKCS7_Tests) + tests += list_test_cases(X923_Tests) + tests += list_test_cases(ISO7816_Tests) + return tests + +if __name__ == '__main__': + suite = lambda: unittest.TestSuite(get_tests()) + unittest.main(defaultTest='suite') + diff --git a/lib/Crypto/SelfTest/Util/test_asn1.py b/lib/Crypto/SelfTest/Util/test_asn1.py new file mode 100644 index 0000000..e40a46f --- /dev/null +++ b/lib/Crypto/SelfTest/Util/test_asn1.py @@ -0,0 +1,657 @@ +# -*- coding: utf-8 -*- +# +# SelfTest/Util/test_asn.py: Self-test for the Crypto.Util.asn1 module +# +# =================================================================== +# The contents of this file are dedicated to the public domain. To +# the extent that dedication to the public domain is not available, +# everyone is granted a worldwide, perpetual, royalty-free, +# non-exclusive license to exercise all rights associated with the +# contents of this file for any purpose whatsoever. +# No rights are reserved. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS +# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +# SOFTWARE. +# =================================================================== + +"""Self-tests for Crypto.Util.asn1""" + +__revision__ = "$Id$" + +import unittest +import sys + +from Crypto.Util.py3compat import * +from Crypto.Util.asn1 import DerObject, DerSetOf, newDerSetOf, DerInteger,\ + DerBitString, newDerBitString, newDerObjectId,\ + DerObjectId, DerNull, DerOctetString,\ + newDerOctetString, DerSequence, newDerSequence,\ + newDerInteger +if sys.version_info[0] == 2 and sys.version_info[1] == 1: + from Crypto.Util.py21compat import * + +class DerObjectTests(unittest.TestCase): + + def testObjInit1(self): + # Fail with invalid tag format (must be 1 byte) + self.assertRaises(ValueError, DerObject, b('\x00\x99')) + # Fail with invalid implicit tag (must be <0x1F) + self.assertRaises(ValueError, DerObject, 0x1F) + + # ------ + + def testObjEncode1(self): + # No payload + der = DerObject(b('\x02')) + self.assertEquals(der.encode(), b('\x02\x00')) + # Small payload (primitive) + der.payload = b('\x45') + self.assertEquals(der.encode(), b('\x02\x01\x45')) + # Invariant + self.assertEquals(der.encode(), b('\x02\x01\x45')) + # Initialize with numerical tag + der = DerObject(0x04) + der.payload = b('\x45') + self.assertEquals(der.encode(), b('\x04\x01\x45')) + # Initialize with constructed type + der = DerObject(b('\x10'), constructed=True) + self.assertEquals(der.encode(), b('\x30\x00')) + + def testObjEncode2(self): + # Initialize with payload + der = DerObject(0x03, b('\x12\x12')) + self.assertEquals(der.encode(), b('\x03\x02\x12\x12')) + + def testObjEncode3(self): + # Long payload + der = DerObject(b('\x10')) + der.payload = b("0")*128 + self.assertEquals(der.encode(), b('\x10\x81\x80' + "0"*128)) + + def testObjEncode4(self): + # Implicit tags (constructed) + der = DerObject(0x10, implicit=1, constructed=True) + der.payload = b('ppll') + self.assertEquals(der.encode(), b('\xa1\x04ppll')) + # Implicit tags (primitive) + der = DerObject(0x02, implicit=0x1E, constructed=False) + der.payload = b('ppll') + self.assertEquals(der.encode(), b('\x9E\x04ppll')) + + # ----- + + def testObjDecode1(self): + # Decode short payload + der = DerObject(0x02) + der.decode(b('\x02\x02\x01\x02')) + self.assertEquals(der.payload, b("\x01\x02")) + self.assertEquals(der._idOctet, 0x02) + + def testObjDecode2(self): + # Decode long payload + der = DerObject(0x02) + der.decode(b('\x02\x81\x80' + "1"*128)) + self.assertEquals(der.payload, b("1")*128) + self.assertEquals(der._idOctet, 0x02) + + def testObjDecode3(self): + # Decode payload with too much data gives error + der = DerObject(0x02) + self.assertRaises(ValueError, der.decode, b('\x02\x02\x01\x02\xFF')) + # Decode payload with too little data gives error + der = DerObject(0x02) + self.assertRaises(EOFError, der.decode, b('\x02\x02\x01')) + + def testObjDecode4(self): + # Decode implicit tag (primitive) + der = DerObject(0x02, constructed=False, implicit=0xF) + self.assertRaises(ValueError, der.decode, b('\x02\x02\x01\x02')) + der.decode(b('\x8F\x01\x00')) + self.assertEquals(der.payload, b('\x00')) + # Decode implicit tag (constructed) + der = DerObject(0x02, constructed=True, implicit=0xF) + self.assertRaises(ValueError, der.decode, b('\x02\x02\x01\x02')) + der.decode(b('\xAF\x01\x00')) + self.assertEquals(der.payload, b('\x00')) + + def testObjDecode5(self): + # Decode payload with unexpected tag gives error + der = DerObject(0x02) + self.assertRaises(ValueError, der.decode, b('\x03\x02\x01\x02')) + + def testObjDecode6(self): + # Arbitrary DER object + der = DerObject() + der.decode(b('\x65\x01\x88')) + self.assertEquals(der._idOctet, 0x65) + self.assertEquals(der.payload, b('\x88')) + +class DerIntegerTests(unittest.TestCase): + + def testInit1(self): + der = newDerInteger(1) + self.assertEquals(der.encode(), b('\x02\x01\x01')) + + def testEncode1(self): + # Single-byte integers + # Value 0 + der = DerInteger(0) + self.assertEquals(der.encode(), b('\x02\x01\x00')) + # Value 1 + der = DerInteger(1) + self.assertEquals(der.encode(), b('\x02\x01\x01')) + # Value 127 + der = DerInteger(127) + self.assertEquals(der.encode(), b('\x02\x01\x7F')) + + def testEncode2(self): + # Multi-byte integers + # Value 128 + der = DerInteger(128) + self.assertEquals(der.encode(), b('\x02\x02\x00\x80')) + # Value 0x180 + der = DerInteger(0x180L) + self.assertEquals(der.encode(), b('\x02\x02\x01\x80')) + # One very long integer + der = DerInteger(2L**2048) + self.assertEquals(der.encode(), + b('\x02\x82\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00')) + + def testEncode3(self): + # Negative integers + # Value -1 + der = DerInteger(-1) + self.assertEquals(der.encode(), b('\x02\x01\xFF')) + # Value -128 + der = DerInteger(-128) + self.assertEquals(der.encode(), b('\x02\x01\x80')) + # Value + der = DerInteger(-87873) + self.assertEquals(der.encode(), b('\x02\x03\xFE\xA8\xBF')) + + # ----- + + def testDecode1(self): + # Single-byte integer + der = DerInteger() + # Value 0 + der.decode(b('\x02\x01\x00')) + self.assertEquals(der.value, 0) + # Value 1 + der.decode(b('\x02\x01\x01')) + self.assertEquals(der.value, 1) + # Value 127 + der.decode(b('\x02\x01\x7F')) + self.assertEquals(der.value, 127) + + def testDecode2(self): + # Multi-byte integer + der = DerInteger() + # Value 0x180L + der.decode(b('\x02\x02\x01\x80')) + self.assertEquals(der.value,0x180L) + # One very long integer + der.decode( + b('\x02\x82\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00')) + self.assertEquals(der.value,2L**2048) + + def testDecode3(self): + # Negative integer + der = DerInteger() + # Value -1 + der.decode(b('\x02\x01\xFF')) + self.assertEquals(der.value, -1) + # Value -32768 + der.decode(b('\x02\x02\x80\x00')) + self.assertEquals(der.value, -32768) + + def testDecode5(self): + # We still accept BER integer format + der = DerInteger() + # Redundant leading zeroes + der.decode(b('\x02\x02\x00\x01')) + self.assertEquals(der.value, 1) + # Redundant leading 0xFF + der.decode(b('\x02\x02\xFF\xFF')) + self.assertEquals(der.value, -1) + # Empty payload + der.decode(b('\x02\x00')) + self.assertEquals(der.value, 0) + + def testErrDecode1(self): + # Wide length field + der = DerInteger() + self.assertRaises(ValueError, der.decode, b('\x02\x81\x01\x01')) + +class DerSequenceTests(unittest.TestCase): + + def testInit1(self): + der = newDerSequence(1, DerInteger(2), '0\x00') + self.assertEquals(der.encode(), b('0\x08\x02\x01\x01\x02\x01\x020\x00')) + + def testEncode1(self): + # Empty sequence + der = DerSequence() + self.assertEquals(der.encode(), b('0\x00')) + self.failIf(der.hasOnlyInts()) + # One single-byte integer (zero) + der.append(0) + self.assertEquals(der.encode(), b('0\x03\x02\x01\x00')) + self.assertEquals(der.hasInts(),1) + self.assertEquals(der.hasInts(False),1) + self.failUnless(der.hasOnlyInts()) + self.failUnless(der.hasOnlyInts(False)) + # Invariant + self.assertEquals(der.encode(), b('0\x03\x02\x01\x00')) + + def testEncode2(self): + # Indexing + der = DerSequence() + der.append(0) + der[0] = 1 + self.assertEquals(len(der),1) + self.assertEquals(der[0],1) + self.assertEquals(der[-1],1) + self.assertEquals(der.encode(), b('0\x03\x02\x01\x01')) + # + der[:] = [1] + self.assertEquals(len(der),1) + self.assertEquals(der[0],1) + self.assertEquals(der.encode(), b('0\x03\x02\x01\x01')) + + def testEncode3(self): + # One multi-byte integer (non-zero) + der = DerSequence() + der.append(0x180L) + self.assertEquals(der.encode(), b('0\x04\x02\x02\x01\x80')) + + def testEncode4(self): + # One very long integer + der = DerSequence() + der.append(2L**2048) + self.assertEquals(der.encode(), b('0\x82\x01\x05')+ + b('\x02\x82\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00')) + + def testEncode5(self): + der = DerSequence() + der += 1 + der += b('\x30\x00') + self.assertEquals(der.encode(), b('\x30\x05\x02\x01\x01\x30\x00')) + + def testEncode6(self): + # Two positive integers + der = DerSequence() + der.append(0x180L) + der.append(0xFFL) + self.assertEquals(der.encode(), b('0\x08\x02\x02\x01\x80\x02\x02\x00\xff')) + self.failUnless(der.hasOnlyInts()) + self.failUnless(der.hasOnlyInts(False)) + # Two mixed integers + der = DerSequence() + der.append(2) + der.append(-2) + self.assertEquals(der.encode(), b('0\x06\x02\x01\x02\x02\x01\xFE')) + self.assertEquals(der.hasInts(), 1) + self.assertEquals(der.hasInts(False), 2) + self.failIf(der.hasOnlyInts()) + self.failUnless(der.hasOnlyInts(False)) + # + der.append(0x01) + der[1:] = [9,8] + self.assertEquals(len(der),3) + self.assertEqual(der[1:],[9,8]) + self.assertEqual(der[1:-1],[9]) + self.assertEquals(der.encode(), b('0\x09\x02\x01\x02\x02\x01\x09\x02\x01\x08')) + + def testEncode7(self): + # One integer and another type (no matter what it is) + der = DerSequence() + der.append(0x180L) + der.append(b('\x00\x02\x00\x00')) + self.assertEquals(der.encode(), b('0\x08\x02\x02\x01\x80\x00\x02\x00\x00')) + self.failIf(der.hasOnlyInts()) + + #### + + def testDecode1(self): + # Empty sequence + der = DerSequence() + der.decode(b('0\x00')) + self.assertEquals(len(der),0) + # One single-byte integer (zero) + der.decode(b('0\x03\x02\x01\x00')) + self.assertEquals(len(der),1) + self.assertEquals(der[0],0) + # Invariant + der.decode(b('0\x03\x02\x01\x00')) + self.assertEquals(len(der),1) + self.assertEquals(der[0],0) + + def testDecode2(self): + # One single-byte integer (non-zero) + der = DerSequence() + der.decode(b('0\x03\x02\x01\x7f')) + self.assertEquals(len(der),1) + self.assertEquals(der[0],127) + + def testDecode4(self): + # One very long integer + der = DerSequence() + der.decode(b('0\x82\x01\x05')+ + b('\x02\x82\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')+ + b('\x00\x00\x00\x00\x00\x00\x00\x00\x00')) + self.assertEquals(len(der),1) + self.assertEquals(der[0],2L**2048) + + def testDecode6(self): + # Two integers + der = DerSequence() + der.decode(b('0\x08\x02\x02\x01\x80\x02\x02\x00\xff')) + self.assertEquals(len(der),2) + self.assertEquals(der[0],0x180L) + self.assertEquals(der[1],0xFFL) + + def testDecode7(self): + # One integer and 2 other types + der = DerSequence() + der.decode(b('0\x0A\x02\x02\x01\x80\x24\x02\xb6\x63\x12\x00')) + self.assertEquals(len(der),3) + self.assertEquals(der[0],0x180L) + self.assertEquals(der[1],b('\x24\x02\xb6\x63')) + self.assertEquals(der[2],b('\x12\x00')) + + def testDecode8(self): + # Only 2 other types + der = DerSequence() + der.decode(b('0\x06\x24\x02\xb6\x63\x12\x00')) + self.assertEquals(len(der),2) + self.assertEquals(der[0],b('\x24\x02\xb6\x63')) + self.assertEquals(der[1],b('\x12\x00')) + self.assertEquals(der.hasInts(), 0) + self.assertEquals(der.hasInts(False), 0) + self.failIf(der.hasOnlyInts()) + self.failIf(der.hasOnlyInts(False)) + + def testErrDecode1(self): + # Not a sequence + der = DerSequence() + self.assertRaises(EOFError, der.decode, b('')) + self.assertRaises(ValueError, der.decode, b('\x00')) + self.assertRaises(EOFError, der.decode, b('\x30')) + + def testErrDecode2(self): + der = DerSequence() + # Too much data + self.assertRaises(ValueError, der.decode, b('\x30\x00\x00')) + + def testErrDecode3(self): + # Wrong length format + der = DerSequence() + # Missing length in sub-item + self.assertRaises(EOFError, der.decode, b('\x30\x04\x02\x01\x01\x00')) + # Valid BER, but invalid DER length + self.assertRaises(ValueError, der.decode, b('\x30\x81\x03\x02\x01\x01')) + self.assertRaises(ValueError, der.decode, b('\x30\x04\x02\x81\x01\x01')) + +class DerOctetStringTests(unittest.TestCase): + + def testInit1(self): + der = newDerOctetString(b('\xFF')) + self.assertEquals(der.encode(), b('\x04\x01\xFF')) + + def testEncode1(self): + # Empty sequence + der = DerOctetString() + self.assertEquals(der.encode(), b('\x04\x00')) + # Small payload + der.payload = b('\x01\x02') + self.assertEquals(der.encode(), b('\x04\x02\x01\x02')) + + #### + + def testDecode1(self): + # Empty sequence + der = DerOctetString() + der.decode(b('\x04\x00')) + self.assertEquals(der.payload, b('')) + # Small payload + der.decode(b('\x04\x02\x01\x02')) + self.assertEquals(der.payload, b('\x01\x02')) + + def testErrDecode1(self): + # No leftovers allowed + der = DerOctetString() + self.assertRaises(ValueError, der.decode, b('\x04\x01\x01\xff')) + +class DerNullTests(unittest.TestCase): + + def testEncode1(self): + der = DerNull() + self.assertEquals(der.encode(), b('\x05\x00')) + + #### + + def testDecode1(self): + # Empty sequence + der = DerNull() + der.decode(b('\x05\x00')) + +class DerObjectIdTests(unittest.TestCase): + + def testInit1(self): + der = newDerObjectId("1.1") + self.assertEquals(der.encode(), b('\x06\x01)')) + + def testEncode1(self): + der = DerObjectId('1.2.840.113549.1.1.1') + self.assertEquals(der.encode(), b('\x06\x09\x2A\x86\x48\x86\xF7\x0D\x01\x01\x01')) + # + der = DerObjectId() + der.value = '1.2.840.113549.1.1.1' + self.assertEquals(der.encode(), b('\x06\x09\x2A\x86\x48\x86\xF7\x0D\x01\x01\x01')) + + #### + + def testDecode1(self): + # Empty sequence + der = DerObjectId() + der.decode(b('\x06\x09\x2A\x86\x48\x86\xF7\x0D\x01\x01\x01')) + self.assertEquals(der.value, '1.2.840.113549.1.1.1') + +class DerBitStringTests(unittest.TestCase): + + def testInit1(self): + der = newDerBitString(b("\xFF")) + self.assertEquals(der.encode(), b('\x03\x02\x00\xFF')) + + def testEncode1(self): + # Empty sequence + der = DerBitString() + self.assertEquals(der.encode(), b('\x03\x01\x00')) + # Small payload + der = DerBitString(b('\x01\x02')) + self.assertEquals(der.encode(), b('\x03\x03\x00\x01\x02')) + # Small payload + der = DerBitString() + der.value = b('\x01\x02') + self.assertEquals(der.encode(), b('\x03\x03\x00\x01\x02')) + + #### + + def testDecode1(self): + # Empty sequence + der = DerBitString() + der.decode(b('\x03\x00')) + self.assertEquals(der.value, b('')) + # Small payload + der.decode(b('\x03\x03\x00\x01\x02')) + self.assertEquals(der.value, b('\x01\x02')) + +class DerSetOfTests(unittest.TestCase): + + def testInit1(self): + der = newDerSetOf(DerInteger(1), DerInteger(2)) + self.assertEquals(der.encode(), b('1\x06\x02\x01\x01\x02\x01\x02')) + + def testEncode1(self): + # Empty set + der = DerSetOf() + self.assertEquals(der.encode(), b('1\x00')) + # One single-byte integer (zero) + der.add(0) + self.assertEquals(der.encode(), b('1\x03\x02\x01\x00')) + # Invariant + self.assertEquals(der.encode(), b('1\x03\x02\x01\x00')) + + def testEncode2(self): + # Two integers + der = DerSetOf() + der.add(0x180L) + der.add(0xFFL) + self.assertEquals(der.encode(), b('1\x08\x02\x02\x00\xff\x02\x02\x01\x80')) + # Initialize with integers + der = DerSetOf([0x180L, 0xFFL]) + self.assertEquals(der.encode(), b('1\x08\x02\x02\x00\xff\x02\x02\x01\x80')) + + def testEncode3(self): + # One integer and another type (no matter what it is) + der = DerSetOf() + der.add(0x180L) + self.assertRaises(ValueError, der.add, b('\x00\x02\x00\x00')) + + def testEncode4(self): + # Only non integers + der = DerSetOf() + der.add(b('\x01\x00')) + der.add(b('\x01\x01\x01')) + self.assertEquals(der.encode(), b('1\x05\x01\x00\x01\x01\x01')) + + #### + + def testDecode1(self): + # Empty sequence + der = DerSetOf() + der.decode(b('1\x00')) + self.assertEquals(len(der),0) + # One single-byte integer (zero) + der.decode(b('1\x03\x02\x01\x00')) + self.assertEquals(len(der),1) + self.assertEquals(list(der),[0]) + + def testDecode2(self): + # Two integers + der = DerSetOf() + der.decode(b('1\x08\x02\x02\x01\x80\x02\x02\x00\xff')) + self.assertEquals(len(der),2) + l = list(der) + self.failUnless(0x180 in l) + self.failUnless(0xFF in l) + + def testDecode3(self): + # One integer and 2 other types + der = DerSetOf() + #import pdb; pdb.set_trace() + self.assertRaises(ValueError, der.decode, + b('0\x0A\x02\x02\x01\x80\x24\x02\xb6\x63\x12\x00')) + + def testErrDecode1(self): + # No leftovers allowed + der = DerSetOf() + self.assertRaises(ValueError, der.decode, + b('1\x08\x02\x02\x01\x80\x02\x02\x00\xff\xAA')) + +def get_tests(config={}): + from Crypto.SelfTest.st_common import list_test_cases + listTests = [] + listTests += list_test_cases(DerObjectTests) + listTests += list_test_cases(DerIntegerTests) + listTests += list_test_cases(DerSequenceTests) + listTests += list_test_cases(DerOctetStringTests) + listTests += list_test_cases(DerNullTests) + listTests += list_test_cases(DerObjectIdTests) + listTests += list_test_cases(DerBitStringTests) + listTests += list_test_cases(DerSetOfTests) + return listTests + +if __name__ == '__main__': + suite = lambda: unittest.TestSuite(get_tests()) + unittest.main(defaultTest='suite') + +# vim:set ts=4 sw=4 sts=4 expandtab: diff --git a/lib/Crypto/SelfTest/Util/test_number.py b/lib/Crypto/SelfTest/Util/test_number.py new file mode 100644 index 0000000..ac23e91 --- /dev/null +++ b/lib/Crypto/SelfTest/Util/test_number.py @@ -0,0 +1,338 @@ +# -*- coding: utf-8 -*- +# +# SelfTest/Util/test_number.py: Self-test for parts of the Crypto.Util.number module +# +# Written in 2008 by Dwayne C. Litzenberger <dlitz@dlitz.net> +# +# =================================================================== +# The contents of this file are dedicated to the public domain. To +# the extent that dedication to the public domain is not available, +# everyone is granted a worldwide, perpetual, royalty-free, +# non-exclusive license to exercise all rights associated with the +# contents of this file for any purpose whatsoever. +# No rights are reserved. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS +# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +# SOFTWARE. +# =================================================================== + +"""Self-tests for (some of) Crypto.Util.number""" + +__revision__ = "$Id$" + +import sys +if sys.version_info[0] == 2 and sys.version_info[1] == 1: + from Crypto.Util.py21compat import * + +import unittest +from Crypto.SelfTest.st_common import assert_disabled + +class MyError(Exception): + """Dummy exception used for tests""" + +# NB: In some places, we compare tuples instead of just output values so that +# if any inputs cause a test failure, we'll be able to tell which ones. + +class MiscTests(unittest.TestCase): + def setUp(self): + global number, math + from Crypto.Util import number + import math + + def test_ceil_shift(self): + """Util.number.ceil_shift""" + if not assert_disabled(): + self.assertRaises(AssertionError, number.ceil_shift, -1, 1) + self.assertRaises(AssertionError, number.ceil_shift, 1, -1) + + # b = 0 + self.assertEqual(0, number.ceil_shift(0, 0)) + self.assertEqual(1, number.ceil_shift(1, 0)) + self.assertEqual(2, number.ceil_shift(2, 0)) + self.assertEqual(3, number.ceil_shift(3, 0)) + + # b = 1 + self.assertEqual(0, number.ceil_shift(0, 1)) + self.assertEqual(1, number.ceil_shift(1, 1)) + self.assertEqual(1, number.ceil_shift(2, 1)) + self.assertEqual(2, number.ceil_shift(3, 1)) + + # b = 2 + self.assertEqual(0, number.ceil_shift(0, 2)) + self.assertEqual(1, number.ceil_shift(1, 2)) + self.assertEqual(1, number.ceil_shift(2, 2)) + self.assertEqual(1, number.ceil_shift(3, 2)) + self.assertEqual(1, number.ceil_shift(4, 2)) + self.assertEqual(2, number.ceil_shift(5, 2)) + self.assertEqual(2, number.ceil_shift(6, 2)) + self.assertEqual(2, number.ceil_shift(7, 2)) + self.assertEqual(2, number.ceil_shift(8, 2)) + self.assertEqual(3, number.ceil_shift(9, 2)) + + for b in range(3, 1+129, 3): # 3, 6, ... , 129 + self.assertEqual(0, number.ceil_shift(0, b)) + + n = 1L + while n <= 2L**(b+2): + (q, r) = divmod(n-1, 2L**b) + expected = q + int(not not r) + self.assertEqual((n-1, b, expected), + (n-1, b, number.ceil_shift(n-1, b))) + + (q, r) = divmod(n, 2L**b) + expected = q + int(not not r) + self.assertEqual((n, b, expected), + (n, b, number.ceil_shift(n, b))) + + (q, r) = divmod(n+1, 2L**b) + expected = q + int(not not r) + self.assertEqual((n+1, b, expected), + (n+1, b, number.ceil_shift(n+1, b))) + + n *= 2 + + def test_ceil_div(self): + """Util.number.ceil_div""" + self.assertRaises(TypeError, number.ceil_div, "1", 1) + self.assertRaises(ZeroDivisionError, number.ceil_div, 1, 0) + self.assertRaises(ZeroDivisionError, number.ceil_div, -1, 0) + + # b = -1 + self.assertEqual(0, number.ceil_div(0, -1)) + self.assertEqual(-1, number.ceil_div(1, -1)) + self.assertEqual(-2, number.ceil_div(2, -1)) + self.assertEqual(-3, number.ceil_div(3, -1)) + + # b = 1 + self.assertEqual(0, number.ceil_div(0, 1)) + self.assertEqual(1, number.ceil_div(1, 1)) + self.assertEqual(2, number.ceil_div(2, 1)) + self.assertEqual(3, number.ceil_div(3, 1)) + + # b = 2 + self.assertEqual(0, number.ceil_div(0, 2)) + self.assertEqual(1, number.ceil_div(1, 2)) + self.assertEqual(1, number.ceil_div(2, 2)) + self.assertEqual(2, number.ceil_div(3, 2)) + self.assertEqual(2, number.ceil_div(4, 2)) + self.assertEqual(3, number.ceil_div(5, 2)) + + # b = 3 + self.assertEqual(0, number.ceil_div(0, 3)) + self.assertEqual(1, number.ceil_div(1, 3)) + self.assertEqual(1, number.ceil_div(2, 3)) + self.assertEqual(1, number.ceil_div(3, 3)) + self.assertEqual(2, number.ceil_div(4, 3)) + self.assertEqual(2, number.ceil_div(5, 3)) + self.assertEqual(2, number.ceil_div(6, 3)) + self.assertEqual(3, number.ceil_div(7, 3)) + + # b = 4 + self.assertEqual(0, number.ceil_div(0, 4)) + self.assertEqual(1, number.ceil_div(1, 4)) + self.assertEqual(1, number.ceil_div(2, 4)) + self.assertEqual(1, number.ceil_div(3, 4)) + self.assertEqual(1, number.ceil_div(4, 4)) + self.assertEqual(2, number.ceil_div(5, 4)) + self.assertEqual(2, number.ceil_div(6, 4)) + self.assertEqual(2, number.ceil_div(7, 4)) + self.assertEqual(2, number.ceil_div(8, 4)) + self.assertEqual(3, number.ceil_div(9, 4)) + + # b = -4 + self.assertEqual(3, number.ceil_div(-9, -4)) + self.assertEqual(2, number.ceil_div(-8, -4)) + self.assertEqual(2, number.ceil_div(-7, -4)) + self.assertEqual(2, number.ceil_div(-6, -4)) + self.assertEqual(2, number.ceil_div(-5, -4)) + self.assertEqual(1, number.ceil_div(-4, -4)) + self.assertEqual(1, number.ceil_div(-3, -4)) + self.assertEqual(1, number.ceil_div(-2, -4)) + self.assertEqual(1, number.ceil_div(-1, -4)) + self.assertEqual(0, number.ceil_div(0, -4)) + self.assertEqual(0, number.ceil_div(1, -4)) + self.assertEqual(0, number.ceil_div(2, -4)) + self.assertEqual(0, number.ceil_div(3, -4)) + self.assertEqual(-1, number.ceil_div(4, -4)) + self.assertEqual(-1, number.ceil_div(5, -4)) + self.assertEqual(-1, number.ceil_div(6, -4)) + self.assertEqual(-1, number.ceil_div(7, -4)) + self.assertEqual(-2, number.ceil_div(8, -4)) + self.assertEqual(-2, number.ceil_div(9, -4)) + + def test_exact_log2(self): + """Util.number.exact_log2""" + self.assertRaises(TypeError, number.exact_log2, "0") + self.assertRaises(ValueError, number.exact_log2, -1) + self.assertRaises(ValueError, number.exact_log2, 0) + self.assertEqual(0, number.exact_log2(1)) + self.assertEqual(1, number.exact_log2(2)) + self.assertRaises(ValueError, number.exact_log2, 3) + self.assertEqual(2, number.exact_log2(4)) + self.assertRaises(ValueError, number.exact_log2, 5) + self.assertRaises(ValueError, number.exact_log2, 6) + self.assertRaises(ValueError, number.exact_log2, 7) + e = 3 + n = 8 + while e < 16: + if n == 2**e: + self.assertEqual(e, number.exact_log2(n), "expected=2**%d, n=%d" % (e, n)) + e += 1 + else: + self.assertRaises(ValueError, number.exact_log2, n) + n += 1 + + for e in range(16, 1+64, 2): + self.assertRaises(ValueError, number.exact_log2, 2L**e-1) + self.assertEqual(e, number.exact_log2(2L**e)) + self.assertRaises(ValueError, number.exact_log2, 2L**e+1) + + def test_exact_div(self): + """Util.number.exact_div""" + + # Positive numbers + self.assertEqual(1, number.exact_div(1, 1)) + self.assertRaises(ValueError, number.exact_div, 1, 2) + self.assertEqual(1, number.exact_div(2, 2)) + self.assertRaises(ValueError, number.exact_div, 3, 2) + self.assertEqual(2, number.exact_div(4, 2)) + + # Negative numbers + self.assertEqual(-1, number.exact_div(-1, 1)) + self.assertEqual(-1, number.exact_div(1, -1)) + self.assertRaises(ValueError, number.exact_div, -1, 2) + self.assertEqual(1, number.exact_div(-2, -2)) + self.assertEqual(-2, number.exact_div(-4, 2)) + + # Zero dividend + self.assertEqual(0, number.exact_div(0, 1)) + self.assertEqual(0, number.exact_div(0, 2)) + + # Zero divisor (allow_divzero == False) + self.assertRaises(ZeroDivisionError, number.exact_div, 0, 0) + self.assertRaises(ZeroDivisionError, number.exact_div, 1, 0) + + # Zero divisor (allow_divzero == True) + self.assertEqual(0, number.exact_div(0, 0, allow_divzero=True)) + self.assertRaises(ValueError, number.exact_div, 1, 0, allow_divzero=True) + + def test_floor_div(self): + """Util.number.floor_div""" + self.assertRaises(TypeError, number.floor_div, "1", 1) + for a in range(-10, 10): + for b in range(-10, 10): + if b == 0: + self.assertRaises(ZeroDivisionError, number.floor_div, a, b) + else: + self.assertEqual((a, b, int(math.floor(float(a) / b))), + (a, b, number.floor_div(a, b))) + + def test_getStrongPrime(self): + """Util.number.getStrongPrime""" + self.assertRaises(ValueError, number.getStrongPrime, 256) + self.assertRaises(ValueError, number.getStrongPrime, 513) + bits = 512 + x = number.getStrongPrime(bits) + self.assertNotEqual(x % 2, 0) + self.assertEqual(x > (1L << bits-1)-1, 1) + self.assertEqual(x < (1L << bits), 1) + e = 2**16+1 + x = number.getStrongPrime(bits, e) + self.assertEqual(number.GCD(x-1, e), 1) + self.assertNotEqual(x % 2, 0) + self.assertEqual(x > (1L << bits-1)-1, 1) + self.assertEqual(x < (1L << bits), 1) + e = 2**16+2 + x = number.getStrongPrime(bits, e) + self.assertEqual(number.GCD((x-1)>>1, e), 1) + self.assertNotEqual(x % 2, 0) + self.assertEqual(x > (1L << bits-1)-1, 1) + self.assertEqual(x < (1L << bits), 1) + + def test_isPrime(self): + """Util.number.isPrime""" + self.assertEqual(number.isPrime(-3), False) # Regression test: negative numbers should not be prime + self.assertEqual(number.isPrime(-2), False) # Regression test: negative numbers should not be prime + self.assertEqual(number.isPrime(1), False) # Regression test: isPrime(1) caused some versions of PyCrypto to crash. + self.assertEqual(number.isPrime(2), True) + self.assertEqual(number.isPrime(3), True) + self.assertEqual(number.isPrime(4), False) + self.assertEqual(number.isPrime(2L**1279-1), True) + self.assertEqual(number.isPrime(-(2L**1279-1)), False) # Regression test: negative numbers should not be prime + # test some known gmp pseudo-primes taken from + # http://www.trnicely.net/misc/mpzspsp.html + for composite in (43 * 127 * 211, 61 * 151 * 211, 15259 * 30517, + 346141L * 692281L, 1007119L * 2014237L, 3589477L * 7178953L, + 4859419L * 9718837L, 2730439L * 5460877L, + 245127919L * 490255837L, 963939391L * 1927878781L, + 4186358431L * 8372716861L, 1576820467L * 3153640933L): + self.assertEqual(number.isPrime(long(composite)), False) + + def test_size(self): + self.assertEqual(number.size(2),2) + self.assertEqual(number.size(3),2) + self.assertEqual(number.size(0xa2),8) + self.assertEqual(number.size(0xa2ba40),8*3) + self.assertEqual(number.size(0xa2ba40ee07e3b2bd2f02ce227f36a195024486e49c19cb41bbbdfbba98b22b0e577c2eeaffa20d883a76e65e394c69d4b3c05a1e8fadda27edb2a42bc000fe888b9b32c22d15add0cd76b3e7936e19955b220dd17d4ea904b1ec102b2e4de7751222aa99151024c7cb41cc5ea21d00eeb41f7c800834d2c6e06bce3bce7ea9a5L), 1024) + +class FastmathTests(unittest.TestCase): + def setUp(self): + global number + from Crypto.Util import number + + def test_negative_number_roundtrip_mpzToLongObj_longObjToMPZ(self): + """Test that mpzToLongObj and longObjToMPZ (internal functions) roundtrip negative numbers correctly.""" + n = -100000000000000000000000000000000000L + e = 2L + k = number._fastmath.rsa_construct(n, e) + self.assertEqual(n, k.n) + self.assertEqual(e, k.e) + + def test_isPrime_randfunc_exception(self): + """Test that when isPrime is called, an exception raised in randfunc is propagated.""" + def randfunc(n): + raise MyError + prime = 3536384141L # Needs to be large enough so that rabinMillerTest will be invoked + self.assertRaises(MyError, number._fastmath.isPrime, prime, randfunc=randfunc) + + def test_getStrongPrime_randfunc_exception(self): + """Test that when getStrongPrime is called, an exception raised in randfunc is propagated.""" + def randfunc(n): + raise MyError + self.assertRaises(MyError, number._fastmath.getStrongPrime, 512, randfunc=randfunc) + + def test_isPrime_randfunc_bogus(self): + """Test that when isPrime is called, an exception is raised if randfunc returns something bogus.""" + def randfunc(n): + return None + prime = 3536384141L # Needs to be large enough so that rabinMillerTest will be invoked + self.assertRaises(TypeError, number._fastmath.isPrime, prime, randfunc=randfunc) + + def test_getStrongPrime_randfunc_bogus(self): + """Test that when getStrongPrime is called, an exception is raised if randfunc returns something bogus.""" + def randfunc(n): + return None + self.assertRaises(TypeError, number._fastmath.getStrongPrime, 512, randfunc=randfunc) + +def get_tests(config={}): + from Crypto.SelfTest.st_common import list_test_cases + tests = list_test_cases(MiscTests) + try: + from Crypto.PublicKey import _fastmath + tests += list_test_cases(FastmathTests) + except ImportError: + from Crypto.SelfTest.st_common import handle_fastmath_import_error + handle_fastmath_import_error() + return tests + +if __name__ == '__main__': + suite = lambda: unittest.TestSuite(get_tests()) + unittest.main(defaultTest='suite') + +# vim:set ts=4 sw=4 sts=4 expandtab: diff --git a/lib/Crypto/SelfTest/Util/test_winrandom.py b/lib/Crypto/SelfTest/Util/test_winrandom.py new file mode 100644 index 0000000..3fc5145 --- /dev/null +++ b/lib/Crypto/SelfTest/Util/test_winrandom.py @@ -0,0 +1,48 @@ +# -*- coding: utf-8 -*- +# +# SelfTest/Util/test_winrandom.py: Self-test for the winrandom module +# +# Written in 2008 by Dwayne C. Litzenberger <dlitz@dlitz.net> +# +# =================================================================== +# The contents of this file are dedicated to the public domain. To +# the extent that dedication to the public domain is not available, +# everyone is granted a worldwide, perpetual, royalty-free, +# non-exclusive license to exercise all rights associated with the +# contents of this file for any purpose whatsoever. +# No rights are reserved. +# +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS +# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN +# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +# SOFTWARE. +# =================================================================== + +"""Self-test suite for Crypto.Util.winrandom""" + +__revision__ = "$Id$" + +import unittest + +class WinRandomImportTest(unittest.TestCase): + def runTest(self): + """winrandom: simple test""" + # Import the winrandom module and try to use it + from Crypto.Util import winrandom + randobj = winrandom.new() + x = randobj.get_bytes(16) + y = randobj.get_bytes(16) + self.assertNotEqual(x, y) + +def get_tests(config={}): + return [WinRandomImportTest()] + +if __name__ == '__main__': + suite = lambda: unittest.TestSuite(get_tests()) + unittest.main(defaultTest='suite') + +# vim:set ts=4 sw=4 sts=4 expandtab: |