import re import base64 import unittest from binascii import hexlify, unhexlify from Crypto.Util.py3compat import bord from Crypto.Hash import SHA256 from Crypto.PublicKey import ECC from Crypto.SelfTest.st_common import list_test_cases from Crypto.SelfTest.loader import load_test_vectors, load_test_vectors_wycheproof from Crypto.Protocol import DH from Crypto.Protocol.DH import (key_agreement, import_x25519_public_key, import_x25519_private_key, import_x448_public_key, import_x448_private_key) class FIPS_ECDH_Tests_KAT(unittest.TestCase): pass test_vectors_verify = load_test_vectors(("Protocol", ), "KAS_ECC_CDH_PrimitiveTest.txt", "ECC CDH Primitive (SP800-56A Section 5.7.1.2)", { 'qcavsx': lambda x: int(x, 16), 'qcavsy': lambda x: int(x, 16), 'diut': lambda x: int(x, 16), 'qiutx': lambda x: int(x, 16), 'qiuty': lambda x: int(x, 16), }) or [] for idx, tv in enumerate(test_vectors_verify): # Stand-alone header with curve name if isinstance(tv, str): res = re.match(r"\[([A-Za-z0-9-]+)\]", tv) assert res curve_name = res.group(1) continue public_key = ECC.construct(curve=curve_name, point_x=tv.qcavsx, point_y=tv.qcavsy) private_key = ECC.construct(curve=curve_name, d=tv.diut) exp_response = tv.ziut def ecdh_test(self, public_key=public_key, private_key=private_key, exp_response=exp_response): z = key_agreement( static_pub=public_key, static_priv=private_key, kdf=lambda x: x) self.assertEqual(z, exp_response) def ecdh_test_rev(self, public_key=public_key, private_key=private_key, exp_response=exp_response): z = key_agreement( static_pub=public_key, static_priv=private_key, kdf=lambda x: x) self.assertEqual(z, exp_response) setattr(FIPS_ECDH_Tests_KAT, "test_verify_positive_%d" % idx, ecdh_test) if idx == 1: setattr(FIPS_ECDH_Tests_KAT, "test_verify_positive_rev_%d" % idx, ecdh_test_rev) class TestVectorsECDHWycheproof(unittest.TestCase): desc = "Wycheproof ECDH tests" def add_tests(self, filename): def curve(g): return g['curve'] def private(u): return int(u['private'], 16) result = load_test_vectors_wycheproof(("Protocol", "wycheproof"), filename, "Wycheproof ECDH (%s)" % filename, group_tag={'curve': curve}, unit_tag={'private': private}, ) self.tv += result def setUp(self): self.tv = [] self.desc = None self.add_tests("ecdh_secp224r1_ecpoint_test.json") self.add_tests("ecdh_secp256r1_ecpoint_test.json") self.add_tests("ecdh_secp384r1_ecpoint_test.json") self.add_tests("ecdh_secp521r1_ecpoint_test.json") self.add_tests("ecdh_secp224r1_test.json") self.add_tests("ecdh_secp256r1_test.json") self.add_tests("ecdh_secp384r1_test.json") self.add_tests("ecdh_secp521r1_test.json") def shortDescription(self): return self.desc def test_verify(self, tv): if len(tv.public) == 0: return try: if bord(tv.public[0]) == 4: # SEC1 public_key = ECC.import_key(tv.public, curve_name=tv.curve) else: public_key = ECC.import_key(tv.public) except ValueError: assert tv.warning or not tv.valid return private_key = ECC.construct(curve=tv.curve, d=tv.private) try: z = key_agreement(static_pub=public_key, static_priv=private_key, kdf=lambda x: x) except ValueError: assert not tv.valid except TypeError as e: assert not tv.valid assert "incompatible curve" in str(e) else: self.assertEqual(z, tv.shared) assert tv.valid def runTest(self): for tv in self.tv: self.desc = "Wycheproof ECDH Verify Test #%d (%s, %s)" % (tv.id, tv.comment, tv.filename) self.test_verify(tv) class ECDH_Tests(unittest.TestCase): static_priv = ECC.import_key('-----BEGIN PRIVATE KEY-----\nMIGHAgEAMBMGByqGSM49AgEGCCqGSM49AwEHBG0wawIBAQQg9VHFVKh2a1aVFifH\n+BiyNaRa2kttEg3165Ye/dJxJ7KhRANCAARImIEXro5ZOcyWU2mq/+d79FEZXtTA\nbKkz1aICQXihQdCMzRNbeNtC9LFLzhu1slRKJ2xsDAlw9r6w6vwtkRzr\n-----END PRIVATE KEY-----') static_pub = ECC.import_key('-----BEGIN PRIVATE KEY-----\nMIGHAgEAMBMGByqGSM49AgEGCCqGSM49AwEHBG0wawIBAQQgHhmv8zmZ+Nw8fsZd\ns8tlZflyfw2NE1CRS9DWr3Y3O46hRANCAAS3hZVUCbk+uk3w4S/YOraEVGG+WYpk\nNO/vrwzufUUks2GV2OnBQESe0EBk4Jq8gn4ij8Lvs3rZX2yT+XfeATYd\n-----END PRIVATE KEY-----').public_key() eph_priv = ECC.import_key('-----BEGIN PRIVATE KEY-----\nMIGHAgEAMBMGByqGSM49AgEGCCqGSM49AwEHBG0wawIBAQQgGPdJmFFFKzLPspIr\nE1T2cEjeIf4ajS9CpneP0e2b3AyhRANCAAQBexAA5BYDcXHs2KOksTYUsst4HhPt\nkp0zkgI2virc3OGJFNGPaCCPfFCQJHwLRaEpiq3SoQlgoBwSc8ZPsl3y\n-----END PRIVATE KEY-----') eph_pub = ECC.import_key('-----BEGIN PRIVATE KEY-----\nMIGHAgEAMBMGByqGSM49AgEGCCqGSM49AwEHBG0wawIBAQQghaVZXElSEGEojFKF\nOU0JCpxWUWHvWQUR81gwWrOp76ShRANCAATi1Ib2K+YR3AckD8wxypWef7pw5PRw\ntBaB3RDPyE7IjHZC6yu1DbcXoCdtaw+F5DM+4zpl59n5ZaIy/Yl1BdIy\n-----END PRIVATE KEY-----') def test_1(self): # C(0, 2s) kdf = lambda x: SHA256.new(x).digest() z = key_agreement( kdf=kdf, static_pub=self.static_pub, static_priv=self.static_priv) self.assertEqual(hexlify(z), b"3960a1101d1193cbaffef4cc7202ebff783c22c6d2e0d5d530ffc66dc197ea9c") def test_2(self): # C(2e, 2s) kdf = lambda x: SHA256.new(x).digest() z = key_agreement( kdf=kdf, static_pub=self.static_pub, static_priv=self.static_priv, eph_pub=self.eph_pub, eph_priv=self.eph_priv) self.assertEqual(hexlify(z), b"7447b733d40c8fab2c633b3dc61e4a8c742f3a6af7e16fb0cc486f5bdb5d6ba2") def test_3(self): # C(1e, 2s) kdf = lambda x: SHA256.new(x).digest() z = key_agreement( kdf=kdf, static_pub=self.static_pub, static_priv=self.static_priv, eph_priv=self.eph_priv) self.assertEqual(hexlify(z), b"9e977ae45f33bf67f285d064d83e6632bcafe3a7d33fe571233bab4794ace759") def test_4(self): # C(1e, 2s) kdf = lambda x: SHA256.new(x).digest() z = key_agreement( kdf=kdf, static_pub=self.static_pub, static_priv=self.static_priv, eph_pub=self.eph_pub) self.assertEqual(hexlify(z), b"c9532df6aa7e9dbe5fe85da31ee25ff19c179c88691ec4b8328cc2036dcdadf2") def test_5(self): # C(2e, 1s) is not supported kdf = lambda x: SHA256.new(x).digest() self.assertRaises(ValueError, key_agreement, kdf=kdf, static_priv=self.static_priv, eph_pub=self.eph_pub, eph_priv=self.eph_priv) def test_6(self): # C(2e, 1s) is not supported kdf = lambda x: SHA256.new(x).digest() self.assertRaises(ValueError, key_agreement, kdf=kdf, static_pub=self.static_pub, eph_pub=self.eph_pub, eph_priv=self.eph_priv) def test_7(self): # C(2e, 0) kdf = lambda x: SHA256.new(x).digest() z = key_agreement( kdf=kdf, eph_pub=self.eph_pub, eph_priv=self.eph_priv) self.assertEqual(hexlify(z), b"feb257ebe063078b1391aac07913283d7b642ad7df61b46dfc9cd6f420bb896a") def test_8(self): # C(1e, 1s) kdf = lambda x: SHA256.new(x).digest() z = key_agreement( kdf=kdf, static_priv=self.static_priv, eph_pub=self.eph_pub) self.assertEqual(hexlify(z), b"ee4dc995117476ed57fd17ff0ed44e9f0466d46b929443bc0db9380317583b04") def test_9(self): # C(1e, 1s) kdf = lambda x: SHA256.new(x).digest() z = key_agreement( kdf=kdf, static_pub=self.static_pub, eph_priv=self.eph_priv) self.assertEqual(hexlify(z), b"2351cc2014f7c40468fa072b5d30f706eeaeef7507311cd8e59bab3b43f03c51") def test_10(self): # No private (local) keys kdf = lambda x: SHA256.new(x).digest() self.assertRaises(ValueError, key_agreement, kdf=kdf, static_pub=self.static_pub, eph_pub=self.eph_pub) def test_11(self): # No public (peer) keys kdf = lambda x: SHA256.new(x).digest() self.assertRaises(ValueError, key_agreement, kdf=kdf, static_priv=self.static_priv, eph_priv=self.eph_priv) def test_12(self): # failure if kdf is missing self.assertRaises(ValueError, key_agreement, static_pub=self.static_pub, static_priv=self.static_priv) class X25519_Tests(unittest.TestCase): def test_rfc7748_1(self): tvs = ( ("a546e36bf0527c9d3b16154b82465edd62144c0ac1fc5a18506a2244ba449ac4", "e6db6867583030db3594c1a424b15f7c726624ec26b3353b10a903a6d0ab1c4c", "c3da55379de9c6908e94ea4df28d084f32eccf03491c71f754b4075577a28552"), ("4b66e9d4d1b4673c5ad22691957d6af5c11b6421e0ea01d42ca4169e7918ba0d", "e5210f12786811d3f4b7959d0538ae2c31dbe7106fc03c3efc4cd549c715a493", "95cbde9476e8907d7aade45cb4b873f88b595a68799fa152e6f8f7647aac7957"), ) for tv1, tv2, tv3 in tvs: priv_key = DH.import_x25519_private_key(unhexlify(tv1)) pub_key = DH.import_x25519_public_key(unhexlify(tv2)) result = key_agreement(static_pub=pub_key, static_priv=priv_key, kdf=lambda x: x) self.assertEqual(result, unhexlify(tv3)) def test_rfc7748_2(self): k = unhexlify("0900000000000000000000000000000000000000000000000000000000000000") priv_key = DH.import_x25519_private_key(k) pub_key = DH.import_x25519_public_key(k) result = key_agreement(static_pub=pub_key, static_priv=priv_key, kdf=lambda x: x) self.assertEqual( result, unhexlify("422c8e7a6227d7bca1350b3e2bb7279f7897b87bb6854b783c60e80311ae3079") ) for _ in range(999): priv_key = DH.import_x25519_private_key(result) pub_key = DH.import_x25519_public_key(k) k = result result = key_agreement(static_pub=pub_key, static_priv=priv_key, kdf=lambda x: x) self.assertEqual( result, unhexlify("684cf59ba83309552800ef566f2f4d3c1c3887c49360e3875f2eb94d99532c51") ) def test_rfc7748_3(self): tv1 = "77076d0a7318a57d3c16c17251b26645df4c2f87ebc0992ab177fba51db92c2a" tv2 = "8520f0098930a754748b7ddcb43ef75a0dbf3a0d26381af4eba4a98eaa9b4e6a" tv3 = "5dab087e624a8a4b79e17f8b83800ee66f3bb1292618b6fd1c2f8b27ff88e0eb" tv4 = "de9edb7d7b7dc1b4d35b61c2ece435373f8343c85b78674dadfc7e146f882b4f" tv5 = "4a5d9d5ba4ce2de1728e3bf480350f25e07e21c947d19e3376f09b3c1e161742" alice_priv_key = DH.import_x25519_private_key(unhexlify(tv1)) alice_pub_key = DH.import_x25519_public_key(unhexlify(tv2)) bob_priv_key = DH.import_x25519_private_key(unhexlify(tv3)) bob_pub_key = DH.import_x25519_public_key(unhexlify(tv4)) secret = unhexlify(tv5) result1 = key_agreement(static_pub=alice_pub_key, static_priv=bob_priv_key, kdf=lambda x: x) result2 = key_agreement(static_pub=bob_pub_key, static_priv=alice_priv_key, kdf=lambda x: x) self.assertEqual(result1, secret) self.assertEqual(result2, secret) def test_weak(self): weak_keys = ( "0000000000000000000000000000000000000000000000000000000000000000", "0100000000000000000000000000000000000000000000000000000000000000", "e0eb7a7c3b41b8ae1656e3faf19fc46ada098deb9c32b1fd866205165f49b800", "5f9c95bca3508c24b1d0b1559c83ef5b04445cc4581c8e86d8224eddd09f1157", "ecffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff7f", "edffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff7f", "eeffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff7f", # The implementation will accept these value, but only because # it will set the MSB to zero (as required by RFC7748, Section 5), # therefore leading to another public key (and to a point which is # not of low order anymore). # "cdeb7a7c3b41b8ae1656e3faf19fc46ada098deb9c32b1fd866205165f49b880", # "4c9c95bca3508c24b1d0b1559c83ef5b04445cc4581c8e86d8224eddd09f11d7", # "d9ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", # "daffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", # "dbffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", ) for x in weak_keys: self.assertRaises(ValueError, DH.import_x25519_public_key, unhexlify(x)) class X448_Tests(unittest.TestCase): def test_rfc7748_1(self): tvs = ( ("3d262fddf9ec8e88495266fea19a34d28882acef045104d0d1aae121700a779c984c24f8cdd78fbff44943eba368f54b29259a4f1c600ad3", "06fce640fa3487bfda5f6cf2d5263f8aad88334cbd07437f020f08f9814dc031ddbdc38c19c6da2583fa5429db94ada18aa7a7fb4ef8a086", "ce3e4ff95a60dc6697da1db1d85e6afbdf79b50a2412d7546d5f239fe14fbaadeb445fc66a01b0779d98223961111e21766282f73dd96b6f"), ("203d494428b8399352665ddca42f9de8fef600908e0d461cb021f8c538345dd77c3e4806e25f46d3315c44e0a5b4371282dd2c8d5be3095f", "0fbcc2f993cd56d3305b0b7d9e55d4c1a8fb5dbb52f8e9a1e9b6201b165d015894e56c4d3570bee52fe205e28a78b91cdfbde71ce8d157db", "884a02576239ff7a2f2f63b2db6a9ff37047ac13568e1e30fe63c4a7ad1b3ee3a5700df34321d62077e63633c575c1c954514e99da7c179d"), ) for tv1, tv2, tv3 in tvs: priv_key = DH.import_x448_private_key(unhexlify(tv1)) pub_key = DH.import_x448_public_key(unhexlify(tv2)) result = key_agreement(static_pub=pub_key, static_priv=priv_key, kdf=lambda x: x) self.assertEqual(result, unhexlify(tv3)) def test_rfc7748_2(self): k = unhexlify("0500000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000") priv_key = DH.import_x448_private_key(k) pub_key = DH.import_x448_public_key(k) result = key_agreement(static_pub=pub_key, static_priv=priv_key, kdf=lambda x: x) self.assertEqual( result, unhexlify("3f482c8a9f19b01e6c46ee9711d9dc14fd4bf67af30765c2ae2b846a4d23a8cd0db897086239492caf350b51f833868b9bc2b3bca9cf4113") ) for _ in range(999): priv_key = DH.import_x448_private_key(result) pub_key = DH.import_x448_public_key(k) k = result result = key_agreement(static_pub=pub_key, static_priv=priv_key, kdf=lambda x: x) self.assertEqual( result, unhexlify("aa3b4749d55b9daf1e5b00288826c467274ce3ebbdd5c17b975e09d4af6c67cf10d087202db88286e2b79fceea3ec353ef54faa26e219f38") ) def test_rfc7748_3(self): tv1 = "9a8f4925d1519f5775cf46b04b5800d4ee9ee8bae8bc5565d498c28dd9c9baf574a9419744897391006382a6f127ab1d9ac2d8c0a598726b" tv2 = "9b08f7cc31b7e3e67d22d5aea121074a273bd2b83de09c63faa73d2c22c5d9bbc836647241d953d40c5b12da88120d53177f80e532c41fa0" tv3 = "1c306a7ac2a0e2e0990b294470cba339e6453772b075811d8fad0d1d6927c120bb5ee8972b0d3e21374c9c921b09d1b0366f10b65173992d" tv4 = "3eb7a829b0cd20f5bcfc0b599b6feccf6da4627107bdb0d4f345b43027d8b972fc3e34fb4232a13ca706dcb57aec3dae07bdc1c67bf33609" tv5 = "07fff4181ac6cc95ec1c16a94a0f74d12da232ce40a77552281d282bb60c0b56fd2464c335543936521c24403085d59a449a5037514a879d" alice_priv_key = DH.import_x448_private_key(unhexlify(tv1)) alice_pub_key = DH.import_x448_public_key(unhexlify(tv2)) bob_priv_key = DH.import_x448_private_key(unhexlify(tv3)) bob_pub_key = DH.import_x448_public_key(unhexlify(tv4)) secret = unhexlify(tv5) result1 = key_agreement(static_pub=alice_pub_key, static_priv=bob_priv_key, kdf=lambda x: x) result2 = key_agreement(static_pub=bob_pub_key, static_priv=alice_priv_key, kdf=lambda x: x) self.assertEqual(result1, secret) self.assertEqual(result2, secret) def test_weak(self): weak_keys = ( "0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000", "0100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000", "fefffffffffffffffffffffffffffffffffffffffffffffffffffffffeffffffffffffffffffffffffffffffffffffffffffffffffffffff", "fffffffffffffffffffffffffffffffffffffffffffffffffffffffffeffffffffffffffffffffffffffffffffffffffffffffffffffffff", "00000000000000000000000000000000000000000000000000000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff", ) for x in weak_keys: self.assertRaises(ValueError, DH.import_x448_public_key, unhexlify(x)) class TestVectorsX25519Wycheproof(unittest.TestCase): desc = "Wycheproof X25519 tests" def add_tests_hex(self, filename): def encoding(g): return g['type'] def private(u): return unhexlify(u['private']) result = load_test_vectors_wycheproof(("Protocol", "wycheproof"), filename, "Wycheproof ECDH (%s)" % filename, group_tag={'encoding': encoding}, unit_tag={'private': private} ) self.tv += result def add_tests_ascii(self, filename): def encoding(g): return g['type'] def public(u): return u['public'] def private(u): return u['private'] result = load_test_vectors_wycheproof(("Protocol", "wycheproof"), filename, "Wycheproof ECDH (%s)" % filename, group_tag={'encoding': encoding}, unit_tag={'public': public, 'private': private} ) self.tv += result def setUp(self): self.tv = [] self.desc = None self.add_tests_hex("x25519_test.json") self.add_tests_hex("x25519_asn_test.json") self.add_tests_ascii("x25519_pem_test.json") self.add_tests_ascii("x25519_jwk_test.json") def shortDescription(self): return self.desc def test_verify(self, tv): if tv.encoding == "XdhComp": try: public_key = import_x25519_public_key(tv.public) except ValueError as e: assert tv.valid assert tv.warning assert "LowOrderPublic" in tv.flags assert "Invalid Curve25519" in str(e) return private_key = import_x25519_private_key(tv.private) elif tv.encoding in ("XdhAsnComp", "XdhPemComp"): try: public_key = ECC.import_key(tv.public) private_key = ECC.import_key(tv.private) except ECC.UnsupportedEccFeature as e: assert not tv.valid assert "Unsupported ECC" in str(e) return except ValueError: assert tv.valid assert tv.warning assert "LowOrderPublic" in tv.flags return elif tv.encoding == "XdhJwkComp": if 'y' in tv.public: return if 'x' not in tv.public: return if 'x' not in tv.private: return if tv.public.get('kty') != 'OKP': return if tv.public.get('crv') != 'X25519': return if tv.private.get('crv') != 'X25519': return def base64url_decode(input_str): input_str = input_str.replace('-', '+').replace('_', '/') padding = 4 - (len(input_str) % 4) if padding != 4: input_str += '=' * padding decoded_bytes = base64.b64decode(input_str) return decoded_bytes jwk_public = base64url_decode(tv.public['x']) jwk_private = base64url_decode(tv.private['d']) try: public_key = import_x25519_public_key(jwk_public) private_key = import_x25519_private_key(jwk_private) except ValueError as e: if tv.valid: assert tv.warning assert "LowOrderPublic" in tv.flags assert "Invalid Curve25519" in str(e) return else: assert "Incorrect length" in str(e) return except ValueError: assert tv.valid else: raise ValueError("Unknown encoding", tv.encoding) try: z = key_agreement(static_pub=public_key, static_priv=private_key, kdf=lambda x: x) except ValueError: assert not tv.valid except TypeError as e: assert not tv.valid assert "incompatible curve" in str(e) else: self.assertEqual(z, tv.shared) assert tv.valid def runTest(self): for tv in self.tv: self.desc = "Wycheproof XECDH Verify Test #%d (%s, %s)" % (tv.id, tv.comment, tv.filename) self.test_verify(tv) class TestVectorsX448Wycheproof(unittest.TestCase): desc = "Wycheproof X448 tests" def add_tests_hex(self, filename): def encoding(g): return g['type'] def private(u): return unhexlify(u['private']) result = load_test_vectors_wycheproof(("Protocol", "wycheproof"), filename, "Wycheproof ECDH (%s)" % filename, group_tag={'encoding': encoding}, unit_tag={'private': private} ) self.tv += result def add_tests_ascii(self, filename): def encoding(g): return g['type'] def public(u): return u['public'] def private(u): return u['private'] result = load_test_vectors_wycheproof(("Protocol", "wycheproof"), filename, "Wycheproof ECDH (%s)" % filename, group_tag={'encoding': encoding}, unit_tag={'public': public, 'private': private} ) self.tv += result def setUp(self): self.tv = [] self.desc = None self.add_tests_hex("x448_test.json") self.add_tests_hex("x448_asn_test.json") self.add_tests_ascii("x448_pem_test.json") self.add_tests_ascii("x448_jwk_test.json") def shortDescription(self): return self.desc def test_verify(self, tv): if tv.encoding == "XdhComp": try: public_key = import_x448_public_key(tv.public) except ValueError as e: assert tv.valid assert tv.warning if len(tv.public) == 56: assert "LowOrderPublic" in tv.flags assert "Invalid Curve448" in str(e) else: assert "Incorrect Curve448" in str(e) return private_key = import_x448_private_key(tv.private) elif tv.encoding in ("XdhAsnComp", "XdhPemComp"): try: public_key = ECC.import_key(tv.public) private_key = ECC.import_key(tv.private) except ECC.UnsupportedEccFeature as e: assert not tv.valid assert "Unsupported ECC" in str(e) return except ValueError as e: assert tv.valid assert tv.warning assert "LowOrderPublic" in tv.flags or "NonCanonicalPublic" in tv.flags return elif tv.encoding == "XdhJwkComp": if 'y' in tv.public: return if 'x' not in tv.public: return if 'x' not in tv.private: return if tv.public.get('kty') != 'OKP': return if tv.public.get('crv') != 'X448': return if tv.private.get('crv') != 'X448': return def base64url_decode(input_str): input_str = input_str.replace('-', '+').replace('_', '/') padding = 4 - (len(input_str) % 4) if padding != 4: input_str += '=' * padding decoded_bytes = base64.b64decode(input_str) return decoded_bytes jwk_public = base64url_decode(tv.public['x']) jwk_private = base64url_decode(tv.private['d']) try: public_key = import_x448_public_key(jwk_public) private_key = import_x448_private_key(jwk_private) except ValueError as e: if tv.valid: assert tv.warning if len(tv.public['x']) == 75: assert "LowOrderPublic" in tv.flags or \ "NonCanonicalPublic" in tv.flags assert "Invalid Curve448" in str(e) else: assert "Incorrect Curve448" in str(e) return else: assert "Incorrect length" in str(e) return except ValueError: assert tv.valid else: raise ValueError("Unknown encoding", tv.encoding) try: z = key_agreement(static_pub=public_key, static_priv=private_key, kdf=lambda x: x) except ValueError: assert not tv.valid except TypeError as e: assert not tv.valid assert "incompatible curve" in str(e) else: self.assertEqual(z, tv.shared) assert tv.valid def runTest(self): for tv in self.tv: self.desc = "Wycheproof XECDH Verify Test #%d (%s, %s)" % (tv.id, tv.comment, tv.filename) self.test_verify(tv) def get_tests(config={}): tests = [] tests += list_test_cases(FIPS_ECDH_Tests_KAT) tests += [TestVectorsECDHWycheproof()] tests += list_test_cases(ECDH_Tests) tests += list_test_cases(X25519_Tests) tests += list_test_cases(X448_Tests) tests += [TestVectorsX25519Wycheproof()] tests += [TestVectorsX448Wycheproof()] slow_tests = config.get('slow_tests') if slow_tests: pass return tests if __name__ == '__main__': def suite(): return unittest.TestSuite(get_tests()) unittest.main(defaultTest='suite')