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author | xiubuzhe <xiubuzhe@sina.com> | 2023-10-08 20:59:00 +0800 |
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committer | xiubuzhe <xiubuzhe@sina.com> | 2023-10-08 20:59:00 +0800 |
commit | 1dac2263372df2b85db5d029a45721fa158a5c9d (patch) | |
tree | 0365f9c57df04178a726d7584ca6a6b955a7ce6a /lib/Crypto/SelfTest/PublicKey/test_RSA.py | |
parent | b494be364bb39e1de128ada7dc576a729d99907e (diff) | |
download | sunhpc-1dac2263372df2b85db5d029a45721fa158a5c9d.tar.gz sunhpc-1dac2263372df2b85db5d029a45721fa158a5c9d.tar.bz2 sunhpc-1dac2263372df2b85db5d029a45721fa158a5c9d.zip |
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Diffstat (limited to 'lib/Crypto/SelfTest/PublicKey/test_RSA.py')
-rw-r--r-- | lib/Crypto/SelfTest/PublicKey/test_RSA.py | 317 |
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diff --git a/lib/Crypto/SelfTest/PublicKey/test_RSA.py b/lib/Crypto/SelfTest/PublicKey/test_RSA.py new file mode 100644 index 0000000..e7b5b90 --- /dev/null +++ b/lib/Crypto/SelfTest/PublicKey/test_RSA.py @@ -0,0 +1,317 @@ +# -*- coding: utf-8 -*- +# +# SelfTest/PublicKey/test_RSA.py: Self-test for the RSA primitive +# +# 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.PublicKey.RSA""" + +__revision__ = "$Id$" + +import os +import pickle +from pickle import PicklingError +from Crypto.Util.py3compat import * + +import unittest +from Crypto.SelfTest.st_common import list_test_cases, a2b_hex, b2a_hex + +class RSATest(unittest.TestCase): + # Test vectors from "RSA-OAEP and RSA-PSS test vectors (.zip file)" + # ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-1/pkcs-1v2-1-vec.zip + # See RSADSI's PKCS#1 page at + # http://www.rsa.com/rsalabs/node.asp?id=2125 + + # from oaep-int.txt + + # TODO: PyCrypto treats the message as starting *after* the leading "00" + # TODO: That behaviour should probably be changed in the future. + plaintext = """ + eb 7a 19 ac e9 e3 00 63 50 e3 29 50 4b 45 e2 + ca 82 31 0b 26 dc d8 7d 5c 68 f1 ee a8 f5 52 67 + c3 1b 2e 8b b4 25 1f 84 d7 e0 b2 c0 46 26 f5 af + f9 3e dc fb 25 c9 c2 b3 ff 8a e1 0e 83 9a 2d db + 4c dc fe 4f f4 77 28 b4 a1 b7 c1 36 2b aa d2 9a + b4 8d 28 69 d5 02 41 21 43 58 11 59 1b e3 92 f9 + 82 fb 3e 87 d0 95 ae b4 04 48 db 97 2f 3a c1 4f + 7b c2 75 19 52 81 ce 32 d2 f1 b7 6d 4d 35 3e 2d + """ + + ciphertext = """ + 12 53 e0 4d c0 a5 39 7b b4 4a 7a b8 7e 9b f2 a0 + 39 a3 3d 1e 99 6f c8 2a 94 cc d3 00 74 c9 5d f7 + 63 72 20 17 06 9e 52 68 da 5d 1c 0b 4f 87 2c f6 + 53 c1 1d f8 23 14 a6 79 68 df ea e2 8d ef 04 bb + 6d 84 b1 c3 1d 65 4a 19 70 e5 78 3b d6 eb 96 a0 + 24 c2 ca 2f 4a 90 fe 9f 2e f5 c9 c1 40 e5 bb 48 + da 95 36 ad 87 00 c8 4f c9 13 0a de a7 4e 55 8d + 51 a7 4d df 85 d8 b5 0d e9 68 38 d6 06 3e 09 55 + """ + + modulus = """ + bb f8 2f 09 06 82 ce 9c 23 38 ac 2b 9d a8 71 f7 + 36 8d 07 ee d4 10 43 a4 40 d6 b6 f0 74 54 f5 1f + b8 df ba af 03 5c 02 ab 61 ea 48 ce eb 6f cd 48 + 76 ed 52 0d 60 e1 ec 46 19 71 9d 8a 5b 8b 80 7f + af b8 e0 a3 df c7 37 72 3e e6 b4 b7 d9 3a 25 84 + ee 6a 64 9d 06 09 53 74 88 34 b2 45 45 98 39 4e + e0 aa b1 2d 7b 61 a5 1f 52 7a 9a 41 f6 c1 68 7f + e2 53 72 98 ca 2a 8f 59 46 f8 e5 fd 09 1d bd cb + """ + + e = 0x11 # public exponent + + prime_factor = """ + c9 7f b1 f0 27 f4 53 f6 34 12 33 ea aa d1 d9 35 + 3f 6c 42 d0 88 66 b1 d0 5a 0f 20 35 02 8b 9d 86 + 98 40 b4 16 66 b4 2e 92 ea 0d a3 b4 32 04 b5 cf + ce 33 52 52 4d 04 16 a5 a4 41 e7 00 af 46 15 03 + """ + + def setUp(self): + global RSA, Random, bytes_to_long + from Crypto.PublicKey import RSA + from Crypto import Random + from Crypto.Util.number import bytes_to_long, inverse + self.n = bytes_to_long(a2b_hex(self.modulus)) + self.p = bytes_to_long(a2b_hex(self.prime_factor)) + + # Compute q, d, and u from n, e, and p + self.q = self.n // self.p + self.d = inverse(self.e, (self.p-1)*(self.q-1)) + self.u = inverse(self.p, self.q) # u = e**-1 (mod q) + + self.rsa = RSA + + def test_generate_1arg(self): + """RSA (default implementation) generated key (1 argument)""" + rsaObj = self.rsa.generate(1024) + self._check_private_key(rsaObj) + self._exercise_primitive(rsaObj) + pub = rsaObj.public_key() + self._check_public_key(pub) + self._exercise_public_primitive(rsaObj) + + def test_generate_2arg(self): + """RSA (default implementation) generated key (2 arguments)""" + rsaObj = self.rsa.generate(1024, Random.new().read) + self._check_private_key(rsaObj) + self._exercise_primitive(rsaObj) + pub = rsaObj.public_key() + self._check_public_key(pub) + self._exercise_public_primitive(rsaObj) + + def test_generate_3args(self): + rsaObj = self.rsa.generate(1024, Random.new().read,e=65537) + self._check_private_key(rsaObj) + self._exercise_primitive(rsaObj) + pub = rsaObj.public_key() + self._check_public_key(pub) + self._exercise_public_primitive(rsaObj) + self.assertEqual(65537,rsaObj.e) + + def test_construct_2tuple(self): + """RSA (default implementation) constructed key (2-tuple)""" + pub = self.rsa.construct((self.n, self.e)) + self._check_public_key(pub) + self._check_encryption(pub) + + def test_construct_3tuple(self): + """RSA (default implementation) constructed key (3-tuple)""" + rsaObj = self.rsa.construct((self.n, self.e, self.d)) + self._check_encryption(rsaObj) + self._check_decryption(rsaObj) + + def test_construct_4tuple(self): + """RSA (default implementation) constructed key (4-tuple)""" + rsaObj = self.rsa.construct((self.n, self.e, self.d, self.p)) + self._check_encryption(rsaObj) + self._check_decryption(rsaObj) + + def test_construct_5tuple(self): + """RSA (default implementation) constructed key (5-tuple)""" + rsaObj = self.rsa.construct((self.n, self.e, self.d, self.p, self.q)) + self._check_private_key(rsaObj) + self._check_encryption(rsaObj) + self._check_decryption(rsaObj) + + def test_construct_6tuple(self): + """RSA (default implementation) constructed key (6-tuple)""" + rsaObj = self.rsa.construct((self.n, self.e, self.d, self.p, self.q, self.u)) + self._check_private_key(rsaObj) + self._check_encryption(rsaObj) + self._check_decryption(rsaObj) + + def test_construct_bad_key2(self): + tup = (self.n, 1) + self.assertRaises(ValueError, self.rsa.construct, tup) + + # An even modulus is wrong + tup = (self.n+1, self.e) + self.assertRaises(ValueError, self.rsa.construct, tup) + + def test_construct_bad_key3(self): + tup = (self.n, self.e, self.d+1) + self.assertRaises(ValueError, self.rsa.construct, tup) + + def test_construct_bad_key5(self): + tup = (self.n, self.e, self.d, self.p, self.p) + self.assertRaises(ValueError, self.rsa.construct, tup) + + tup = (self.p*self.p, self.e, self.p, self.p) + self.assertRaises(ValueError, self.rsa.construct, tup) + + tup = (self.p*self.p, 3, self.p, self.q) + self.assertRaises(ValueError, self.rsa.construct, tup) + + def test_construct_bad_key6(self): + tup = (self.n, self.e, self.d, self.p, self.q, 10) + self.assertRaises(ValueError, self.rsa.construct, tup) + + from Crypto.Util.number import inverse + tup = (self.n, self.e, self.d, self.p, self.q, inverse(self.q, self.p)) + self.assertRaises(ValueError, self.rsa.construct, tup) + + def test_factoring(self): + rsaObj = self.rsa.construct([self.n, self.e, self.d]) + self.assertTrue(rsaObj.p==self.p or rsaObj.p==self.q) + self.assertTrue(rsaObj.q==self.p or rsaObj.q==self.q) + self.assertTrue(rsaObj.q*rsaObj.p == self.n) + + self.assertRaises(ValueError, self.rsa.construct, [self.n, self.e, self.n-1]) + + def test_repr(self): + rsaObj = self.rsa.construct((self.n, self.e, self.d, self.p, self.q)) + repr(rsaObj) + + def test_serialization(self): + """RSA keys are unpickable""" + + rsa_key = self.rsa.generate(1024) + self.assertRaises(PicklingError, pickle.dumps, rsa_key) + + def test_raw_rsa_boundary(self): + # The argument of every RSA raw operation (encrypt/decrypt) must be + # non-negative and no larger than the modulus + rsa_obj = self.rsa.generate(1024) + + self.assertRaises(ValueError, rsa_obj._decrypt, rsa_obj.n) + self.assertRaises(ValueError, rsa_obj._encrypt, rsa_obj.n) + + self.assertRaises(ValueError, rsa_obj._decrypt, -1) + self.assertRaises(ValueError, rsa_obj._encrypt, -1) + + def test_size(self): + pub = self.rsa.construct((self.n, self.e)) + self.assertEqual(pub.size_in_bits(), 1024) + self.assertEqual(pub.size_in_bytes(), 128) + + def _check_private_key(self, rsaObj): + from Crypto.Math.Numbers import Integer + + # Check capabilities + self.assertEqual(1, rsaObj.has_private()) + + # Sanity check key data + self.assertEqual(rsaObj.n, rsaObj.p * rsaObj.q) # n = pq + lcm = int(Integer(rsaObj.p-1).lcm(rsaObj.q-1)) + self.assertEqual(1, rsaObj.d * rsaObj.e % lcm) # ed = 1 (mod LCM(p-1, q-1)) + self.assertEqual(1, rsaObj.p * rsaObj.u % rsaObj.q) # pu = 1 (mod q) + self.assertEqual(1, rsaObj.p > 1) # p > 1 + self.assertEqual(1, rsaObj.q > 1) # q > 1 + self.assertEqual(1, rsaObj.e > 1) # e > 1 + self.assertEqual(1, rsaObj.d > 1) # d > 1 + + def _check_public_key(self, rsaObj): + ciphertext = a2b_hex(self.ciphertext) + + # Check capabilities + self.assertEqual(0, rsaObj.has_private()) + + # Check rsaObj.[ne] -> rsaObj.[ne] mapping + self.assertEqual(rsaObj.n, rsaObj.n) + self.assertEqual(rsaObj.e, rsaObj.e) + + # Check that private parameters are all missing + self.assertEqual(0, hasattr(rsaObj, 'd')) + self.assertEqual(0, hasattr(rsaObj, 'p')) + self.assertEqual(0, hasattr(rsaObj, 'q')) + self.assertEqual(0, hasattr(rsaObj, 'u')) + + # Sanity check key data + self.assertEqual(1, rsaObj.e > 1) # e > 1 + + # Public keys should not be able to sign or decrypt + self.assertRaises(TypeError, rsaObj._decrypt, + bytes_to_long(ciphertext)) + + # Check __eq__ and __ne__ + self.assertEqual(rsaObj.public_key() == rsaObj.public_key(),True) # assert_ + self.assertEqual(rsaObj.public_key() != rsaObj.public_key(),False) # assertFalse + + self.assertEqual(rsaObj.publickey(), rsaObj.public_key()) + + def _exercise_primitive(self, rsaObj): + # Since we're using a randomly-generated key, we can't check the test + # vector, but we can make sure encryption and decryption are inverse + # operations. + ciphertext = bytes_to_long(a2b_hex(self.ciphertext)) + + # Test decryption + plaintext = rsaObj._decrypt(ciphertext) + + # Test encryption (2 arguments) + new_ciphertext2 = rsaObj._encrypt(plaintext) + self.assertEqual(ciphertext, new_ciphertext2) + + def _exercise_public_primitive(self, rsaObj): + plaintext = a2b_hex(self.plaintext) + + # Test encryption (2 arguments) + new_ciphertext2 = rsaObj._encrypt(bytes_to_long(plaintext)) + + def _check_encryption(self, rsaObj): + plaintext = a2b_hex(self.plaintext) + ciphertext = a2b_hex(self.ciphertext) + + # Test encryption + new_ciphertext2 = rsaObj._encrypt(bytes_to_long(plaintext)) + self.assertEqual(bytes_to_long(ciphertext), new_ciphertext2) + + def _check_decryption(self, rsaObj): + plaintext = bytes_to_long(a2b_hex(self.plaintext)) + ciphertext = bytes_to_long(a2b_hex(self.ciphertext)) + + # Test plain decryption + new_plaintext = rsaObj._decrypt(ciphertext) + self.assertEqual(plaintext, new_plaintext) + + +def get_tests(config={}): + tests = [] + tests += list_test_cases(RSATest) + return tests + +if __name__ == '__main__': + suite = lambda: unittest.TestSuite(get_tests()) + unittest.main(defaultTest='suite') + +# vim:set ts=4 sw=4 sts=4 expandtab: |