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# # SelfTest/Hash/test_Poly1305.py: Self-test for the Poly1305 module # # =================================================================== # # Copyright (c) 2018, Helder Eijs <helderijs@gmail.com> # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions # are met: # # 1. Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # 2. Redistributions in binary form must reproduce the above copyright # notice, this list of conditions and the following disclaimer in # the documentation and/or other materials provided with the # distribution. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS # FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE # COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, # BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE # POSSIBILITY OF SUCH DAMAGE. # =================================================================== """Self-test suite for Crypto.Hash._Poly1305""" import json import unittest from binascii import unhexlify, hexlify from .common import make_mac_tests from Crypto.SelfTest.st_common import list_test_cases from Crypto.Hash import Poly1305 from Crypto.Cipher import AES, ChaCha20 from Crypto.Util.py3compat import tobytes from Crypto.Util.strxor import strxor_c # This is a list of (r+s keypair, data, result, description, keywords) tuples. test_data_basic = [ ( "85d6be7857556d337f4452fe42d506a80103808afb0db2fd4abff6af4149f51b", hexlify(b"Cryptographic Forum Research Group").decode(), "a8061dc1305136c6c22b8baf0c0127a9", "RFC7539" ), ( "746869732069732033322d62797465206b657920666f7220506f6c7931333035", "0000000000000000000000000000000000000000000000000000000000000000", "49ec78090e481ec6c26b33b91ccc0307", "https://tools.ietf.org/html/draft-agl-tls-chacha20poly1305-00#section-7 A", ), ( "746869732069732033322d62797465206b657920666f7220506f6c7931333035", "48656c6c6f20776f726c6421", "a6f745008f81c916a20dcc74eef2b2f0", "https://tools.ietf.org/html/draft-agl-tls-chacha20poly1305-00#section-7 B", ), ( "746869732069732033322d62797465206b657920666f7220506f6c7931333035", "", "6b657920666f7220506f6c7931333035", "Generated with pure Python", ), ( "746869732069732033322d62797465206b657920666f7220506f6c7931333035", "FF", "f7e4e0ef4c46d106219da3d1bdaeb3ff", "Generated with pure Python", ), ( "746869732069732033322d62797465206b657920666f7220506f6c7931333035", "FF00", "7471eceeb22988fc936da1d6e838b70e", "Generated with pure Python", ), ( "746869732069732033322d62797465206b657920666f7220506f6c7931333035", "AA" * 17, "32590bc07cb2afaccca3f67f122975fe", "Generated with pure Python", ), ( "00" * 32, "00" * 64, "00" * 16, "RFC7539 A.3 #1", ), ( "0000000000000000000000000000000036e5f6b5c5e06070f0efca96227a863e", hexlify( b"Any submission t" b"o the IETF inten" b"ded by the Contr" b"ibutor for publi" b"cation as all or" b" part of an IETF" b" Internet-Draft " b"or RFC and any s" b"tatement made wi" b"thin the context" b" of an IETF acti" b"vity is consider" b"ed an \"IETF Cont" b"ribution\". Such " b"statements inclu" b"de oral statemen" b"ts in IETF sessi" b"ons, as well as " b"written and elec" b"tronic communica" b"tions made at an" b"y time or place," b" which are addre" b"ssed to").decode(), "36e5f6b5c5e06070f0efca96227a863e", "RFC7539 A.3 #2", ), ( "36e5f6b5c5e06070f0efca96227a863e00000000000000000000000000000000", hexlify( b"Any submission t" b"o the IETF inten" b"ded by the Contr" b"ibutor for publi" b"cation as all or" b" part of an IETF" b" Internet-Draft " b"or RFC and any s" b"tatement made wi" b"thin the context" b" of an IETF acti" b"vity is consider" b"ed an \"IETF Cont" b"ribution\". Such " b"statements inclu" b"de oral statemen" b"ts in IETF sessi" b"ons, as well as " b"written and elec" b"tronic communica" b"tions made at an" b"y time or place," b" which are addre" b"ssed to").decode(), "f3477e7cd95417af89a6b8794c310cf0", "RFC7539 A.3 #3", ), ( "1c9240a5eb55d38af333888604f6b5f0473917c1402b80099dca5cbc207075c0", "2754776173206272696c6c69672c2061" "6e642074686520736c6974687920746f" "7665730a446964206779726520616e64" "2067696d626c6520696e207468652077" "6162653a0a416c6c206d696d73792077" "6572652074686520626f726f676f7665" "732c0a416e6420746865206d6f6d6520" "7261746873206f757467726162652e", "4541669a7eaaee61e708dc7cbcc5eb62", "RFC7539 A.3 #4", ), ( "02" + "00" * 31, "FF" * 16, "03" + "00" * 15, "RFC7539 A.3 #5", ), ( "02" + "00" * 15 + "FF" * 16, "02" + "00" * 15, "03" + "00" * 15, "RFC7539 A.3 #6", ), ( "01" + "00" * 31, "FF" * 16 + "F0" + "FF" * 15 + "11" + "00" * 15, "05" + "00" * 15, "RFC7539 A.3 #7", ), ( "01" + "00" * 31, "FF" * 16 + "FB" + "FE" * 15 + "01" * 16, "00" * 16, "RFC7539 A.3 #8", ), ( "02" + "00" * 31, "FD" + "FF" * 15, "FA" + "FF" * 15, "RFC7539 A.3 #9", ), ( "01 00 00 00 00 00 00 00 04 00 00 00 00 00 00 00" "00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00", "E3 35 94 D7 50 5E 43 B9 00 00 00 00 00 00 00 00" "33 94 D7 50 5E 43 79 CD 01 00 00 00 00 00 00 00" "00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00" "01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00", "14 00 00 00 00 00 00 00 55 00 00 00 00 00 00 00", "RFC7539 A.3 #10", ), ( "01 00 00 00 00 00 00 00 04 00 00 00 00 00 00 00" "00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00", "E3 35 94 D7 50 5E 43 B9 00 00 00 00 00 00 00 00" "33 94 D7 50 5E 43 79 CD 01 00 00 00 00 00 00 00" "00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00", "13" + "00" * 15, "RFC7539 A.3 #11", ), ] # This is a list of (key(k+r), data, result, description, keywords) tuples. test_data_aes = [ ( "ec074c835580741701425b623235add6851fc40c3467ac0be05cc20404f3f700", "f3f6", "f4c633c3044fc145f84f335cb81953de", "http://cr.yp.to/mac/poly1305-20050329.pdf", { 'cipher':AES, 'nonce':unhexlify("fb447350c4e868c52ac3275cf9d4327e") } ), ( "75deaa25c09f208e1dc4ce6b5cad3fbfa0f3080000f46400d0c7e9076c834403", "", "dd3fab2251f11ac759f0887129cc2ee7", "http://cr.yp.to/mac/poly1305-20050329.pdf", { 'cipher':AES, 'nonce':unhexlify("61ee09218d29b0aaed7e154a2c5509cc") } ), ( "6acb5f61a7176dd320c5c1eb2edcdc7448443d0bb0d21109c89a100b5ce2c208", "663cea190ffb83d89593f3f476b6bc24" "d7e679107ea26adb8caf6652d0656136", "0ee1c16bb73f0f4fd19881753c01cdbe", "http://cr.yp.to/mac/poly1305-20050329.pdf", { 'cipher':AES, 'nonce':unhexlify("ae212a55399729595dea458bc621ff0e") } ), ( "e1a5668a4d5b66a5f68cc5424ed5982d12976a08c4426d0ce8a82407c4f48207", "ab0812724a7f1e342742cbed374d94d1" "36c6b8795d45b3819830f2c04491faf0" "990c62e48b8018b2c3e4a0fa3134cb67" "fa83e158c994d961c4cb21095c1bf9", "5154ad0d2cb26e01274fc51148491f1b", "http://cr.yp.to/mac/poly1305-20050329.pdf", { 'cipher':AES, 'nonce':unhexlify("9ae831e743978d3a23527c7128149e3a") } ), ] test_data_chacha20 = [ ( "00" * 32, "FF" * 15, "13cc5bbadc36b03a5163928f0bcb65aa", "RFC7539 A.4 #1", { 'cipher':ChaCha20, 'nonce':unhexlify("00" * 12) } ), ( "00" * 31 + "01", "FF" * 15, "0baf33c1d6df211bdd50a6767e98e00a", "RFC7539 A.4 #2", { 'cipher':ChaCha20, 'nonce':unhexlify("00" * 11 + "02") } ), ( "1c 92 40 a5 eb 55 d3 8a f3 33 88 86 04 f6 b5 f0" "47 39 17 c1 40 2b 80 09 9d ca 5c bc 20 70 75 c0", "FF" * 15, "e8b4c6db226cd8939e65e02eebf834ce", "RFC7539 A.4 #3", { 'cipher':ChaCha20, 'nonce':unhexlify("00" * 11 + "02") } ), ( "1c 92 40 a5 eb 55 d3 8a f3 33 88 86 04 f6 b5 f0" "47 39 17 c1 40 2b 80 09 9d ca 5c bc 20 70 75 c0", "f3 33 88 86 00 00 00 00 00 00 4e 91 00 00 00 00" "64 a0 86 15 75 86 1a f4 60 f0 62 c7 9b e6 43 bd" "5e 80 5c fd 34 5c f3 89 f1 08 67 0a c7 6c 8c b2" "4c 6c fc 18 75 5d 43 ee a0 9e e9 4e 38 2d 26 b0" "bd b7 b7 3c 32 1b 01 00 d4 f0 3b 7f 35 58 94 cf" "33 2f 83 0e 71 0b 97 ce 98 c8 a8 4a bd 0b 94 81" "14 ad 17 6e 00 8d 33 bd 60 f9 82 b1 ff 37 c8 55" "97 97 a0 6e f4 f0 ef 61 c1 86 32 4e 2b 35 06 38" "36 06 90 7b 6a 7c 02 b0 f9 f6 15 7b 53 c8 67 e4" "b9 16 6c 76 7b 80 4d 46 a5 9b 52 16 cd e7 a4 e9" "90 40 c5 a4 04 33 22 5e e2 82 a1 b0 a0 6c 52 3e" "af 45 34 d7 f8 3f a1 15 5b 00 47 71 8c bc 54 6a" "0d 07 2b 04 b3 56 4e ea 1b 42 22 73 f5 48 27 1a" "0b b2 31 60 53 fa 76 99 19 55 eb d6 31 59 43 4e" "ce bb 4e 46 6d ae 5a 10 73 a6 72 76 27 09 7a 10" "49 e6 17 d9 1d 36 10 94 fa 68 f0 ff 77 98 71 30" "30 5b ea ba 2e da 04 df 99 7b 71 4d 6c 6f 2c 29" "a6 ad 5c b4 02 2b 02 70 9b 00 00 00 00 00 00 00" "0c 00 00 00 00 00 00 00 09 01 00 00 00 00 00 00", "ee ad 9d 67 89 0c bb 22 39 23 36 fe a1 85 1f 38", "RFC7539 A.5", { 'cipher':ChaCha20, 'nonce':unhexlify("000000000102030405060708") } ), ] class Poly1305Test_AES(unittest.TestCase): key = b'\x11' * 32 def test_new_positive(self): data = b'r' * 100 h1 = Poly1305.new(key=self.key, cipher=AES) self.assertEqual(h1.digest_size, 16) self.assertEqual(len(h1.nonce), 16) d1 = h1.update(data).digest() self.assertEqual(len(d1), 16) h2 = Poly1305.new(key=self.key, nonce=h1.nonce, data=data, cipher=AES) d2 = h2.digest() self.assertEqual(h1.nonce, h2.nonce) self.assertEqual(d1, d2) def test_new_negative(self): from Crypto.Cipher import DES3 self.assertRaises(ValueError, Poly1305.new, key=self.key[:31], cipher=AES) self.assertRaises(ValueError, Poly1305.new, key=self.key, cipher=DES3) self.assertRaises(ValueError, Poly1305.new, key=self.key, nonce=b'1' * 15, cipher=AES) self.assertRaises(TypeError, Poly1305.new, key=u"2" * 32, cipher=AES) self.assertRaises(TypeError, Poly1305.new, key=self.key, data=u"2" * 100, cipher=AES) def test_update(self): pieces = [b"\x0A" * 200, b"\x14" * 300] h1 = Poly1305.new(key=self.key, cipher=AES) h1.update(pieces[0]).update(pieces[1]) d1 = h1.digest() h2 = Poly1305.new(key=self.key, cipher=AES, nonce=h1.nonce) h2.update(pieces[0] + pieces[1]) d2 = h2.digest() self.assertEqual(d1, d2) def test_update_negative(self): h = Poly1305.new(key=self.key, cipher=AES) self.assertRaises(TypeError, h.update, u"string") def test_digest(self): h = Poly1305.new(key=self.key, cipher=AES) digest = h.digest() # hexdigest does not change the state self.assertEqual(h.digest(), digest) # digest returns a byte string self.assertTrue(isinstance(digest, type(b"digest"))) def test_update_after_digest(self): msg=b"rrrrttt" # Normally, update() cannot be done after digest() h = Poly1305.new(key=self.key, data=msg[:4], cipher=AES) h.digest() self.assertRaises(TypeError, h.update, msg[4:]) def test_hex_digest(self): mac = Poly1305.new(key=self.key, cipher=AES) digest = mac.digest() hexdigest = mac.hexdigest() # hexdigest is equivalent to digest self.assertEqual(hexlify(digest), tobytes(hexdigest)) # hexdigest does not change the state self.assertEqual(mac.hexdigest(), hexdigest) # hexdigest returns a string self.assertTrue(isinstance(hexdigest, type("digest"))) def test_verify(self): h = Poly1305.new(key=self.key, cipher=AES) mac = h.digest() h.verify(mac) wrong_mac = strxor_c(mac, 255) self.assertRaises(ValueError, h.verify, wrong_mac) def test_hexverify(self): h = Poly1305.new(key=self.key, cipher=AES) mac = h.hexdigest() h.hexverify(mac) self.assertRaises(ValueError, h.hexverify, "4556") def test_bytearray(self): data = b"\x00\x01\x02" h0 = Poly1305.new(key=self.key, data=data, cipher=AES) d_ref = h0.digest() # Data and key can be a bytearray (during initialization) key_ba = bytearray(self.key) data_ba = bytearray(data) h1 = Poly1305.new(key=self.key, data=data, cipher=AES, nonce=h0.nonce) h2 = Poly1305.new(key=key_ba, data=data_ba, cipher=AES, nonce=h0.nonce) key_ba[:1] = b'\xFF' data_ba[:1] = b'\xEE' self.assertEqual(h1.digest(), d_ref) self.assertEqual(h2.digest(), d_ref) # Data can be a bytearray (during operation) data_ba = bytearray(data) h1 = Poly1305.new(key=self.key, cipher=AES) h2 = Poly1305.new(key=self.key, cipher=AES, nonce=h1.nonce) h1.update(data) h2.update(data_ba) data_ba[:1] = b'\xFF' self.assertEqual(h1.digest(), h2.digest()) def test_memoryview(self): data = b"\x00\x01\x02" def get_mv_ro(data): return memoryview(data) def get_mv_rw(data): return memoryview(bytearray(data)) for get_mv in (get_mv_ro, get_mv_rw): # Data and key can be a memoryview (during initialization) key_mv = get_mv(self.key) data_mv = get_mv(data) h1 = Poly1305.new(key=self.key, data=data, cipher=AES) h2 = Poly1305.new(key=key_mv, data=data_mv, cipher=AES, nonce=h1.nonce) if not data_mv.readonly: data_mv[:1] = b'\xFF' key_mv[:1] = b'\xFF' self.assertEqual(h1.digest(), h2.digest()) # Data can be a memoryview (during operation) data_mv = get_mv(data) h1 = Poly1305.new(key=self.key, cipher=AES) h2 = Poly1305.new(key=self.key, cipher=AES, nonce=h1.nonce) h1.update(data) h2.update(data_mv) if not data_mv.readonly: data_mv[:1] = b'\xFF' self.assertEqual(h1.digest(), h2.digest()) class Poly1305Test_ChaCha20(unittest.TestCase): key = b'\x11' * 32 def test_new_positive(self): data = b'r' * 100 h1 = Poly1305.new(key=self.key, cipher=ChaCha20) self.assertEqual(h1.digest_size, 16) self.assertEqual(len(h1.nonce), 12) h2 = Poly1305.new(key=self.key, cipher=ChaCha20, nonce = b'8' * 8) self.assertEqual(len(h2.nonce), 8) self.assertEqual(h2.nonce, b'8' * 8) def test_new_negative(self): self.assertRaises(ValueError, Poly1305.new, key=self.key, nonce=b'1' * 7, cipher=ChaCha20) # # make_mac_tests() expect a new() function with signature new(key, data, # **kwargs), and we need to adapt Poly1305's, as it only uses keywords # class Poly1305_New(object): @staticmethod def new(key, *data, **kwds): _kwds = dict(kwds) if len(data) == 1: _kwds['data'] = data[0] _kwds['key'] = key return Poly1305.new(**_kwds) class Poly1305_Basic(object): @staticmethod def new(key, *data, **kwds): from Crypto.Hash.Poly1305 import Poly1305_MAC if len(data) == 1: msg = data[0] else: msg = None return Poly1305_MAC(key[:16], key[16:], msg) class Poly1305AES_MC(unittest.TestCase): def runTest(self): tag = unhexlify(b"fb447350c4e868c52ac3275cf9d4327e") msg = b'' for msg_len in range(5000 + 1): key = tag + strxor_c(tag, 0xFF) nonce = tag[::-1] if msg_len > 0: msg = msg + tobytes(tag[0]) auth = Poly1305.new(key=key, nonce=nonce, cipher=AES, data=msg) tag = auth.digest() # Compare against output of original DJB's poly1305aes-20050218 self.assertEqual("CDFA436DDD629C7DC20E1128530BAED2", auth.hexdigest().upper()) def get_tests(config={}): tests = make_mac_tests(Poly1305_Basic, "Poly1305", test_data_basic) tests += make_mac_tests(Poly1305_New, "Poly1305", test_data_aes) tests += make_mac_tests(Poly1305_New, "Poly1305", test_data_chacha20) tests += [ Poly1305AES_MC() ] tests += list_test_cases(Poly1305Test_AES) tests += list_test_cases(Poly1305Test_ChaCha20) return tests if __name__ == '__main__': suite = lambda: unittest.TestSuite(get_tests()) unittest.main(defaultTest='suite')
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