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Diffstat (limited to 'tests/x509/test_x509.py')
| -rw-r--r-- | tests/x509/test_x509.py | 4036 |
1 files changed, 4036 insertions, 0 deletions
diff --git a/tests/x509/test_x509.py b/tests/x509/test_x509.py new file mode 100644 index 00000000..533862ab --- /dev/null +++ b/tests/x509/test_x509.py @@ -0,0 +1,4036 @@ +# This file is dual licensed under the terms of the Apache License, Version +# 2.0, and the BSD License. See the LICENSE file in the root of this repository +# for complete details. + +from __future__ import absolute_import, division, print_function + +import binascii +import datetime +import ipaddress +import os +import sys + +from asn1crypto.x509 import Certificate + +import pytest + +import pytz + +import six + +from cryptography import utils, x509 +from cryptography.exceptions import UnsupportedAlgorithm +from cryptography.hazmat.backends.interfaces import ( + DSABackend, EllipticCurveBackend, RSABackend, X509Backend +) +from cryptography.hazmat.primitives import hashes, serialization +from cryptography.hazmat.primitives.asymmetric import dsa, ec, padding, rsa +from cryptography.hazmat.primitives.asymmetric.utils import ( + decode_dss_signature +) +from cryptography.x509.oid import ( + AuthorityInformationAccessOID, ExtendedKeyUsageOID, ExtensionOID, + NameOID, SignatureAlgorithmOID +) + +from ..hazmat.primitives.fixtures_dsa import DSA_KEY_2048 +from ..hazmat.primitives.fixtures_ec import EC_KEY_SECP256R1 +from ..hazmat.primitives.fixtures_rsa import RSA_KEY_2048, RSA_KEY_512 +from ..hazmat.primitives.test_ec import _skip_curve_unsupported +from ..utils import load_vectors_from_file + + +@utils.register_interface(x509.ExtensionType) +class DummyExtension(object): + oid = x509.ObjectIdentifier("1.2.3.4") + + +@utils.register_interface(x509.GeneralName) +class FakeGeneralName(object): + def __init__(self, value): + self._value = value + + value = utils.read_only_property("_value") + + +def _load_cert(filename, loader, backend): + cert = load_vectors_from_file( + filename=filename, + loader=lambda pemfile: loader(pemfile.read(), backend), + mode="rb" + ) + return cert + + +@pytest.mark.requires_backend_interface(interface=X509Backend) +class TestCertificateRevocationList(object): + def test_load_pem_crl(self, backend): + crl = _load_cert( + os.path.join("x509", "custom", "crl_all_reasons.pem"), + x509.load_pem_x509_crl, + backend + ) + + assert isinstance(crl, x509.CertificateRevocationList) + fingerprint = binascii.hexlify(crl.fingerprint(hashes.SHA1())) + assert fingerprint == b"3234b0cb4c0cedf6423724b736729dcfc9e441ef" + assert isinstance(crl.signature_hash_algorithm, hashes.SHA256) + assert ( + crl.signature_algorithm_oid == + SignatureAlgorithmOID.RSA_WITH_SHA256 + ) + + def test_load_der_crl(self, backend): + crl = _load_cert( + os.path.join("x509", "PKITS_data", "crls", "GoodCACRL.crl"), + x509.load_der_x509_crl, + backend + ) + + assert isinstance(crl, x509.CertificateRevocationList) + fingerprint = binascii.hexlify(crl.fingerprint(hashes.SHA1())) + assert fingerprint == b"dd3db63c50f4c4a13e090f14053227cb1011a5ad" + assert isinstance(crl.signature_hash_algorithm, hashes.SHA256) + + def test_invalid_pem(self, backend): + with pytest.raises(ValueError): + x509.load_pem_x509_crl(b"notacrl", backend) + + def test_invalid_der(self, backend): + with pytest.raises(ValueError): + x509.load_der_x509_crl(b"notacrl", backend) + + def test_unknown_signature_algorithm(self, backend): + crl = _load_cert( + os.path.join( + "x509", "custom", "crl_md2_unknown_crit_entry_ext.pem" + ), + x509.load_pem_x509_crl, + backend + ) + + with pytest.raises(UnsupportedAlgorithm): + crl.signature_hash_algorithm() + + def test_issuer(self, backend): + crl = _load_cert( + os.path.join("x509", "PKITS_data", "crls", "GoodCACRL.crl"), + x509.load_der_x509_crl, + backend + ) + + assert isinstance(crl.issuer, x509.Name) + assert list(crl.issuer) == [ + x509.NameAttribute(x509.OID_COUNTRY_NAME, u'US'), + x509.NameAttribute( + x509.OID_ORGANIZATION_NAME, u'Test Certificates 2011' + ), + x509.NameAttribute(x509.OID_COMMON_NAME, u'Good CA') + ] + assert crl.issuer.get_attributes_for_oid(x509.OID_COMMON_NAME) == [ + x509.NameAttribute(x509.OID_COMMON_NAME, u'Good CA') + ] + + def test_equality(self, backend): + crl1 = _load_cert( + os.path.join("x509", "PKITS_data", "crls", "GoodCACRL.crl"), + x509.load_der_x509_crl, + backend + ) + + crl2 = _load_cert( + os.path.join("x509", "PKITS_data", "crls", "GoodCACRL.crl"), + x509.load_der_x509_crl, + backend + ) + + crl3 = _load_cert( + os.path.join("x509", "custom", "crl_all_reasons.pem"), + x509.load_pem_x509_crl, + backend + ) + + assert crl1 == crl2 + assert crl1 != crl3 + assert crl1 != object() + + def test_update_dates(self, backend): + crl = _load_cert( + os.path.join("x509", "custom", "crl_all_reasons.pem"), + x509.load_pem_x509_crl, + backend + ) + + assert isinstance(crl.next_update, datetime.datetime) + assert isinstance(crl.last_update, datetime.datetime) + + assert crl.next_update.isoformat() == "2016-01-01T00:00:00" + assert crl.last_update.isoformat() == "2015-01-01T00:00:00" + + def test_revoked_cert_retrieval(self, backend): + crl = _load_cert( + os.path.join("x509", "custom", "crl_all_reasons.pem"), + x509.load_pem_x509_crl, + backend + ) + + for r in crl: + assert isinstance(r, x509.RevokedCertificate) + + # Check that len() works for CRLs. + assert len(crl) == 12 + + def test_revoked_cert_retrieval_retain_only_revoked(self, backend): + """ + This test attempts to trigger the crash condition described in + https://github.com/pyca/cryptography/issues/2557 + PyPy does gc at its own pace, so it will only be reliable on CPython. + """ + revoked = _load_cert( + os.path.join("x509", "custom", "crl_all_reasons.pem"), + x509.load_pem_x509_crl, + backend + )[11] + assert revoked.revocation_date == datetime.datetime(2015, 1, 1, 0, 0) + assert revoked.serial_number == 11 + + def test_extensions(self, backend): + crl = _load_cert( + os.path.join("x509", "custom", "crl_ian_aia_aki.pem"), + x509.load_pem_x509_crl, + backend + ) + + crl_number = crl.extensions.get_extension_for_oid( + ExtensionOID.CRL_NUMBER + ) + aki = crl.extensions.get_extension_for_class( + x509.AuthorityKeyIdentifier + ) + aia = crl.extensions.get_extension_for_class( + x509.AuthorityInformationAccess + ) + ian = crl.extensions.get_extension_for_class( + x509.IssuerAlternativeName + ) + assert crl_number.value == x509.CRLNumber(1) + assert crl_number.critical is False + assert aki.value == x509.AuthorityKeyIdentifier( + key_identifier=( + b'yu\xbb\x84:\xcb,\xdez\t\xbe1\x1bC\xbc\x1c*MSX' + ), + authority_cert_issuer=None, + authority_cert_serial_number=None + ) + assert aia.value == x509.AuthorityInformationAccess([ + x509.AccessDescription( + AuthorityInformationAccessOID.CA_ISSUERS, + x509.DNSName(b"cryptography.io") + ) + ]) + assert ian.value == x509.IssuerAlternativeName([ + x509.UniformResourceIdentifier(b"https://cryptography.io"), + ]) + + def test_signature(self, backend): + crl = _load_cert( + os.path.join("x509", "custom", "crl_all_reasons.pem"), + x509.load_pem_x509_crl, + backend + ) + + assert crl.signature == binascii.unhexlify( + b"536a5a0794f68267361e7bc2f19167a3e667a2ab141535616855d8deb2ba1af" + b"9fd4546b1fe76b454eb436af7b28229fedff4634dfc9dd92254266219ae0ea8" + b"75d9ff972e9a2da23d5945f073da18c50a4265bfed9ca16586347800ef49dd1" + b"6856d7265f4f3c498a57f04dc04404e2bd2e2ada1f5697057aacef779a18371" + b"c621edc9a5c2b8ec1716e8fa22feeb7fcec0ce9156c8d344aa6ae8d1a5d99d0" + b"9386df36307df3b63c83908f4a61a0ff604c1e292ad63b349d1082ddd7ae1b7" + b"c178bba995523ec6999310c54da5706549797bfb1230f5593ba7b4353dade4f" + b"d2be13a57580a6eb20b5c4083f000abac3bf32cd8b75f23e4c8f4b3a79e1e2d" + b"58a472b0" + ) + + def test_tbs_certlist_bytes(self, backend): + crl = _load_cert( + os.path.join("x509", "PKITS_data", "crls", "GoodCACRL.crl"), + x509.load_der_x509_crl, + backend + ) + + ca_cert = _load_cert( + os.path.join("x509", "PKITS_data", "certs", "GoodCACert.crt"), + x509.load_der_x509_certificate, + backend + ) + + verifier = ca_cert.public_key().verifier( + crl.signature, padding.PKCS1v15(), crl.signature_hash_algorithm + ) + verifier.update(crl.tbs_certlist_bytes) + verifier.verify() + + def test_public_bytes_pem(self, backend): + crl = _load_cert( + os.path.join("x509", "custom", "crl_empty.pem"), + x509.load_pem_x509_crl, + backend + ) + + # Encode it to PEM and load it back. + crl = x509.load_pem_x509_crl(crl.public_bytes( + encoding=serialization.Encoding.PEM, + ), backend) + + assert len(crl) == 0 + assert crl.last_update == datetime.datetime(2015, 12, 20, 23, 44, 47) + assert crl.next_update == datetime.datetime(2015, 12, 28, 0, 44, 47) + + def test_public_bytes_der(self, backend): + crl = _load_cert( + os.path.join("x509", "custom", "crl_all_reasons.pem"), + x509.load_pem_x509_crl, + backend + ) + + # Encode it to DER and load it back. + crl = x509.load_der_x509_crl(crl.public_bytes( + encoding=serialization.Encoding.DER, + ), backend) + + assert len(crl) == 12 + assert crl.last_update == datetime.datetime(2015, 1, 1, 0, 0, 0) + assert crl.next_update == datetime.datetime(2016, 1, 1, 0, 0, 0) + + @pytest.mark.parametrize( + ("cert_path", "loader_func", "encoding"), + [ + ( + os.path.join("x509", "custom", "crl_all_reasons.pem"), + x509.load_pem_x509_crl, + serialization.Encoding.PEM, + ), + ( + os.path.join("x509", "PKITS_data", "crls", "GoodCACRL.crl"), + x509.load_der_x509_crl, + serialization.Encoding.DER, + ), + ] + ) + def test_public_bytes_match(self, cert_path, loader_func, encoding, + backend): + crl_bytes = load_vectors_from_file( + cert_path, lambda pemfile: pemfile.read(), mode="rb" + ) + crl = loader_func(crl_bytes, backend) + serialized = crl.public_bytes(encoding) + assert serialized == crl_bytes + + def test_public_bytes_invalid_encoding(self, backend): + crl = _load_cert( + os.path.join("x509", "custom", "crl_empty.pem"), + x509.load_pem_x509_crl, + backend + ) + + with pytest.raises(TypeError): + crl.public_bytes('NotAnEncoding') + + def test_verify_bad(self, backend): + crl = _load_cert( + os.path.join("x509", "custom", "invalid_signature.pem"), + x509.load_pem_x509_crl, + backend + ) + crt = _load_cert( + os.path.join("x509", "custom", "invalid_signature.pem"), + x509.load_pem_x509_certificate, + backend + ) + + assert not crl.is_signature_valid(crt.public_key()) + + def test_verify_good(self, backend): + crl = _load_cert( + os.path.join("x509", "custom", "valid_signature.pem"), + x509.load_pem_x509_crl, + backend + ) + crt = _load_cert( + os.path.join("x509", "custom", "valid_signature.pem"), + x509.load_pem_x509_certificate, + backend + ) + + assert crl.is_signature_valid(crt.public_key()) + + def test_verify_argument_must_be_a_public_key(self, backend): + crl = _load_cert( + os.path.join("x509", "custom", "valid_signature.pem"), + x509.load_pem_x509_crl, + backend + ) + + with pytest.raises(TypeError): + crl.is_signature_valid("not a public key") + + with pytest.raises(TypeError): + crl.is_signature_valid(object) + + +@pytest.mark.requires_backend_interface(interface=X509Backend) +class TestRevokedCertificate(object): + def test_revoked_basics(self, backend): + crl = _load_cert( + os.path.join("x509", "custom", "crl_all_reasons.pem"), + x509.load_pem_x509_crl, + backend + ) + + for i, rev in enumerate(crl): + assert isinstance(rev, x509.RevokedCertificate) + assert isinstance(rev.serial_number, int) + assert isinstance(rev.revocation_date, datetime.datetime) + assert isinstance(rev.extensions, x509.Extensions) + + assert rev.serial_number == i + assert rev.revocation_date.isoformat() == "2015-01-01T00:00:00" + + def test_revoked_extensions(self, backend): + crl = _load_cert( + os.path.join("x509", "custom", "crl_all_reasons.pem"), + x509.load_pem_x509_crl, + backend + ) + + exp_issuer = [ + x509.DirectoryName(x509.Name([ + x509.NameAttribute(x509.OID_COUNTRY_NAME, u"US"), + x509.NameAttribute(x509.OID_COMMON_NAME, u"cryptography.io"), + ])) + ] + + # First revoked cert doesn't have extensions, test if it is handled + # correctly. + rev0 = crl[0] + # It should return an empty Extensions object. + assert isinstance(rev0.extensions, x509.Extensions) + assert len(rev0.extensions) == 0 + with pytest.raises(x509.ExtensionNotFound): + rev0.extensions.get_extension_for_oid(x509.OID_CRL_REASON) + with pytest.raises(x509.ExtensionNotFound): + rev0.extensions.get_extension_for_oid(x509.OID_CERTIFICATE_ISSUER) + with pytest.raises(x509.ExtensionNotFound): + rev0.extensions.get_extension_for_oid(x509.OID_INVALIDITY_DATE) + + # Test manual retrieval of extension values. + rev1 = crl[1] + assert isinstance(rev1.extensions, x509.Extensions) + + reason = rev1.extensions.get_extension_for_class( + x509.CRLReason).value + assert reason == x509.CRLReason(x509.ReasonFlags.unspecified) + + issuer = rev1.extensions.get_extension_for_class( + x509.CertificateIssuer).value + assert issuer == x509.CertificateIssuer(exp_issuer) + + date = rev1.extensions.get_extension_for_class( + x509.InvalidityDate).value + assert date == x509.InvalidityDate(datetime.datetime(2015, 1, 1, 0, 0)) + + # Check if all reason flags can be found in the CRL. + flags = set(x509.ReasonFlags) + for rev in crl: + try: + r = rev.extensions.get_extension_for_class(x509.CRLReason) + except x509.ExtensionNotFound: + # Not all revoked certs have a reason extension. + pass + else: + flags.discard(r.value.reason) + + assert len(flags) == 0 + + def test_no_revoked_certs(self, backend): + crl = _load_cert( + os.path.join("x509", "custom", "crl_empty.pem"), + x509.load_pem_x509_crl, + backend + ) + assert len(crl) == 0 + + def test_duplicate_entry_ext(self, backend): + crl = _load_cert( + os.path.join("x509", "custom", "crl_dup_entry_ext.pem"), + x509.load_pem_x509_crl, + backend + ) + + with pytest.raises(x509.DuplicateExtension): + crl[0].extensions + + def test_unsupported_crit_entry_ext(self, backend): + crl = _load_cert( + os.path.join( + "x509", "custom", "crl_md2_unknown_crit_entry_ext.pem" + ), + x509.load_pem_x509_crl, + backend + ) + + ext = crl[0].extensions.get_extension_for_oid( + x509.ObjectIdentifier("1.2.3.4") + ) + assert ext.value.value == b"\n\x01\x00" + + def test_unsupported_reason(self, backend): + crl = _load_cert( + os.path.join( + "x509", "custom", "crl_unsupported_reason.pem" + ), + x509.load_pem_x509_crl, + backend + ) + + with pytest.raises(ValueError): + crl[0].extensions + + def test_invalid_cert_issuer_ext(self, backend): + crl = _load_cert( + os.path.join( + "x509", "custom", "crl_inval_cert_issuer_entry_ext.pem" + ), + x509.load_pem_x509_crl, + backend + ) + + with pytest.raises(ValueError): + crl[0].extensions + + def test_indexing(self, backend): + crl = _load_cert( + os.path.join("x509", "custom", "crl_all_reasons.pem"), + x509.load_pem_x509_crl, + backend + ) + + with pytest.raises(IndexError): + crl[-13] + with pytest.raises(IndexError): + crl[12] + + assert crl[-1].serial_number == crl[11].serial_number + assert len(crl[2:4]) == 2 + assert crl[2:4][0].serial_number == crl[2].serial_number + assert crl[2:4][1].serial_number == crl[3].serial_number + + +@pytest.mark.requires_backend_interface(interface=RSABackend) +@pytest.mark.requires_backend_interface(interface=X509Backend) +class TestRSACertificate(object): + def test_load_pem_cert(self, backend): + cert = _load_cert( + os.path.join("x509", "custom", "post2000utctime.pem"), + x509.load_pem_x509_certificate, + backend + ) + assert isinstance(cert, x509.Certificate) + assert cert.serial_number == 11559813051657483483 + fingerprint = binascii.hexlify(cert.fingerprint(hashes.SHA1())) + assert fingerprint == b"2b619ed04bfc9c3b08eb677d272192286a0947a8" + assert isinstance(cert.signature_hash_algorithm, hashes.SHA1) + assert ( + cert.signature_algorithm_oid == SignatureAlgorithmOID.RSA_WITH_SHA1 + ) + + def test_alternate_rsa_with_sha1_oid(self, backend): + cert = _load_cert( + os.path.join("x509", "alternate-rsa-sha1-oid.pem"), + x509.load_pem_x509_certificate, + backend + ) + assert isinstance(cert.signature_hash_algorithm, hashes.SHA1) + assert ( + cert.signature_algorithm_oid == + SignatureAlgorithmOID._RSA_WITH_SHA1 + ) + + def test_cert_serial_number(self, backend): + cert = _load_cert( + os.path.join("x509", "PKITS_data", "certs", "GoodCACert.crt"), + x509.load_der_x509_certificate, + backend + ) + + with pytest.deprecated_call(): + assert cert.serial == 2 + assert cert.serial_number == 2 + + def test_cert_serial_warning(self, backend): + cert = _load_cert( + os.path.join("x509", "PKITS_data", "certs", "GoodCACert.crt"), + x509.load_der_x509_certificate, + backend + ) + + with pytest.deprecated_call(): + cert.serial + + def test_load_der_cert(self, backend): + cert = _load_cert( + os.path.join("x509", "PKITS_data", "certs", "GoodCACert.crt"), + x509.load_der_x509_certificate, + backend + ) + assert isinstance(cert, x509.Certificate) + assert cert.serial_number == 2 + fingerprint = binascii.hexlify(cert.fingerprint(hashes.SHA1())) + assert fingerprint == b"6f49779533d565e8b7c1062503eab41492c38e4d" + assert isinstance(cert.signature_hash_algorithm, hashes.SHA256) + + def test_signature(self, backend): + cert = _load_cert( + os.path.join("x509", "custom", "post2000utctime.pem"), + x509.load_pem_x509_certificate, + backend + ) + assert cert.signature == binascii.unhexlify( + b"8e0f72fcbebe4755abcaf76c8ce0bae17cde4db16291638e1b1ce04a93cdb4c" + b"44a3486070986c5a880c14fdf8497e7d289b2630ccb21d24a3d1aa1b2d87482" + b"07f3a1e16ccdf8daa8a7ea1a33d49774f513edf09270bd8e665b6300a10f003" + b"66a59076905eb63cf10a81a0ca78a6ef3127f6cb2f6fb7f947fce22a30d8004" + b"8c243ba2c1a54c425fe12310e8a737638f4920354d4cce25cbd9dea25e6a2fe" + b"0d8579a5c8d929b9275be221975479f3f75075bcacf09526523b5fd67f7683f" + b"3cda420fabb1e9e6fc26bc0649cf61bb051d6932fac37066bb16f55903dfe78" + b"53dc5e505e2a10fbba4f9e93a0d3b53b7fa34b05d7ba6eef869bfc34b8e514f" + b"d5419f75" + ) + assert len(cert.signature) == cert.public_key().key_size // 8 + + def test_tbs_certificate_bytes(self, backend): + cert = _load_cert( + os.path.join("x509", "custom", "post2000utctime.pem"), + x509.load_pem_x509_certificate, + backend + ) + assert cert.tbs_certificate_bytes == binascii.unhexlify( + b"308202d8a003020102020900a06cb4b955f7f4db300d06092a864886f70d010" + b"10505003058310b3009060355040613024155311330110603550408130a536f" + b"6d652d53746174653121301f060355040a1318496e7465726e6574205769646" + b"769747320507479204c74643111300f0603550403130848656c6c6f20434130" + b"1e170d3134313132363231343132305a170d3134313232363231343132305a3" + b"058310b3009060355040613024155311330110603550408130a536f6d652d53" + b"746174653121301f060355040a1318496e7465726e657420576964676974732" + b"0507479204c74643111300f0603550403130848656c6c6f2043413082012230" + b"0d06092a864886f70d01010105000382010f003082010a0282010100b03af70" + b"2059e27f1e2284b56bbb26c039153bf81f295b73a49132990645ede4d2da0a9" + b"13c42e7d38d3589a00d3940d194f6e6d877c2ef812da22a275e83d8be786467" + b"48b4e7f23d10e873fd72f57a13dec732fc56ab138b1bb308399bb412cd73921" + b"4ef714e1976e09603405e2556299a05522510ac4574db5e9cb2cf5f99e8f48c" + b"1696ab3ea2d6d2ddab7d4e1b317188b76a572977f6ece0a4ad396f0150e7d8b" + b"1a9986c0cb90527ec26ca56e2914c270d2a198b632fa8a2fda55079d3d39864" + b"b6fb96ddbe331cacb3cb8783a8494ccccd886a3525078847ca01ca5f803e892" + b"14403e8a4b5499539c0b86f7a0daa45b204a8e079d8a5b03db7ba1ba3d7011a" + b"70203010001a381bc3081b9301d0603551d0e04160414d8e89dc777e4472656" + b"f1864695a9f66b7b0400ae3081890603551d23048181307f8014d8e89dc777e" + b"4472656f1864695a9f66b7b0400aea15ca45a3058310b300906035504061302" + b"4155311330110603550408130a536f6d652d53746174653121301f060355040" + b"a1318496e7465726e6574205769646769747320507479204c74643111300f06" + b"03550403130848656c6c6f204341820900a06cb4b955f7f4db300c0603551d1" + b"3040530030101ff" + ) + verifier = cert.public_key().verifier( + cert.signature, padding.PKCS1v15(), cert.signature_hash_algorithm + ) + verifier.update(cert.tbs_certificate_bytes) + verifier.verify() + + def test_issuer(self, backend): + cert = _load_cert( + os.path.join( + "x509", "PKITS_data", "certs", + "Validpre2000UTCnotBeforeDateTest3EE.crt" + ), + x509.load_der_x509_certificate, + backend + ) + issuer = cert.issuer + assert isinstance(issuer, x509.Name) + assert list(issuer) == [ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + x509.NameAttribute( + NameOID.ORGANIZATION_NAME, u'Test Certificates 2011' + ), + x509.NameAttribute(NameOID.COMMON_NAME, u'Good CA') + ] + assert issuer.get_attributes_for_oid(NameOID.COMMON_NAME) == [ + x509.NameAttribute(NameOID.COMMON_NAME, u'Good CA') + ] + + def test_all_issuer_name_types(self, backend): + cert = _load_cert( + os.path.join( + "x509", "custom", + "all_supported_names.pem" + ), + x509.load_pem_x509_certificate, + backend + ) + issuer = cert.issuer + + assert isinstance(issuer, x509.Name) + assert list(issuer) == [ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + x509.NameAttribute(NameOID.COUNTRY_NAME, u'CA'), + x509.NameAttribute(NameOID.STATE_OR_PROVINCE_NAME, u'Texas'), + x509.NameAttribute(NameOID.STATE_OR_PROVINCE_NAME, u'Illinois'), + x509.NameAttribute(NameOID.LOCALITY_NAME, u'Chicago'), + x509.NameAttribute(NameOID.LOCALITY_NAME, u'Austin'), + x509.NameAttribute(NameOID.ORGANIZATION_NAME, u'Zero, LLC'), + x509.NameAttribute(NameOID.ORGANIZATION_NAME, u'One, LLC'), + x509.NameAttribute(NameOID.COMMON_NAME, u'common name 0'), + x509.NameAttribute(NameOID.COMMON_NAME, u'common name 1'), + x509.NameAttribute(NameOID.ORGANIZATIONAL_UNIT_NAME, u'OU 0'), + x509.NameAttribute(NameOID.ORGANIZATIONAL_UNIT_NAME, u'OU 1'), + x509.NameAttribute(NameOID.DN_QUALIFIER, u'dnQualifier0'), + x509.NameAttribute(NameOID.DN_QUALIFIER, u'dnQualifier1'), + x509.NameAttribute(NameOID.SERIAL_NUMBER, u'123'), + x509.NameAttribute(NameOID.SERIAL_NUMBER, u'456'), + x509.NameAttribute(NameOID.TITLE, u'Title 0'), + x509.NameAttribute(NameOID.TITLE, u'Title 1'), + x509.NameAttribute(NameOID.SURNAME, u'Surname 0'), + x509.NameAttribute(NameOID.SURNAME, u'Surname 1'), + x509.NameAttribute(NameOID.GIVEN_NAME, u'Given Name 0'), + x509.NameAttribute(NameOID.GIVEN_NAME, u'Given Name 1'), + x509.NameAttribute(NameOID.PSEUDONYM, u'Incognito 0'), + x509.NameAttribute(NameOID.PSEUDONYM, u'Incognito 1'), + x509.NameAttribute(NameOID.GENERATION_QUALIFIER, u'Last Gen'), + x509.NameAttribute(NameOID.GENERATION_QUALIFIER, u'Next Gen'), + x509.NameAttribute(NameOID.DOMAIN_COMPONENT, u'dc0'), + x509.NameAttribute(NameOID.DOMAIN_COMPONENT, u'dc1'), + x509.NameAttribute(NameOID.EMAIL_ADDRESS, u'test0@test.local'), + x509.NameAttribute(NameOID.EMAIL_ADDRESS, u'test1@test.local'), + ] + + def test_subject(self, backend): + cert = _load_cert( + os.path.join( + "x509", "PKITS_data", "certs", + "Validpre2000UTCnotBeforeDateTest3EE.crt" + ), + x509.load_der_x509_certificate, + backend + ) + subject = cert.subject + assert isinstance(subject, x509.Name) + assert list(subject) == [ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + x509.NameAttribute( + NameOID.ORGANIZATION_NAME, u'Test Certificates 2011' + ), + x509.NameAttribute( + NameOID.COMMON_NAME, + u'Valid pre2000 UTC notBefore Date EE Certificate Test3' + ) + ] + assert subject.get_attributes_for_oid(NameOID.COMMON_NAME) == [ + x509.NameAttribute( + NameOID.COMMON_NAME, + u'Valid pre2000 UTC notBefore Date EE Certificate Test3' + ) + ] + + def test_unicode_name(self, backend): + cert = _load_cert( + os.path.join( + "x509", "custom", + "utf8_common_name.pem" + ), + x509.load_pem_x509_certificate, + backend + ) + assert cert.subject.get_attributes_for_oid(NameOID.COMMON_NAME) == [ + x509.NameAttribute( + NameOID.COMMON_NAME, + u'We heart UTF8!\u2122' + ) + ] + assert cert.issuer.get_attributes_for_oid(NameOID.COMMON_NAME) == [ + x509.NameAttribute( + NameOID.COMMON_NAME, + u'We heart UTF8!\u2122' + ) + ] + + def test_all_subject_name_types(self, backend): + cert = _load_cert( + os.path.join( + "x509", "custom", + "all_supported_names.pem" + ), + x509.load_pem_x509_certificate, + backend + ) + subject = cert.subject + assert isinstance(subject, x509.Name) + assert list(subject) == [ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'AU'), + x509.NameAttribute(NameOID.COUNTRY_NAME, u'DE'), + x509.NameAttribute(NameOID.STATE_OR_PROVINCE_NAME, u'California'), + x509.NameAttribute(NameOID.STATE_OR_PROVINCE_NAME, u'New York'), + x509.NameAttribute(NameOID.LOCALITY_NAME, u'San Francisco'), + x509.NameAttribute(NameOID.LOCALITY_NAME, u'Ithaca'), + x509.NameAttribute(NameOID.ORGANIZATION_NAME, u'Org Zero, LLC'), + x509.NameAttribute(NameOID.ORGANIZATION_NAME, u'Org One, LLC'), + x509.NameAttribute(NameOID.COMMON_NAME, u'CN 0'), + x509.NameAttribute(NameOID.COMMON_NAME, u'CN 1'), + x509.NameAttribute( + NameOID.ORGANIZATIONAL_UNIT_NAME, u'Engineering 0' + ), + x509.NameAttribute( + NameOID.ORGANIZATIONAL_UNIT_NAME, u'Engineering 1' + ), + x509.NameAttribute(NameOID.DN_QUALIFIER, u'qualified0'), + x509.NameAttribute(NameOID.DN_QUALIFIER, u'qualified1'), + x509.NameAttribute(NameOID.SERIAL_NUMBER, u'789'), + x509.NameAttribute(NameOID.SERIAL_NUMBER, u'012'), + x509.NameAttribute(NameOID.TITLE, u'Title IX'), + x509.NameAttribute(NameOID.TITLE, u'Title X'), + x509.NameAttribute(NameOID.SURNAME, u'Last 0'), + x509.NameAttribute(NameOID.SURNAME, u'Last 1'), + x509.NameAttribute(NameOID.GIVEN_NAME, u'First 0'), + x509.NameAttribute(NameOID.GIVEN_NAME, u'First 1'), + x509.NameAttribute(NameOID.PSEUDONYM, u'Guy Incognito 0'), + x509.NameAttribute(NameOID.PSEUDONYM, u'Guy Incognito 1'), + x509.NameAttribute(NameOID.GENERATION_QUALIFIER, u'32X'), + x509.NameAttribute(NameOID.GENERATION_QUALIFIER, u'Dreamcast'), + x509.NameAttribute(NameOID.DOMAIN_COMPONENT, u'dc2'), + x509.NameAttribute(NameOID.DOMAIN_COMPONENT, u'dc3'), + x509.NameAttribute(NameOID.EMAIL_ADDRESS, u'test2@test.local'), + x509.NameAttribute(NameOID.EMAIL_ADDRESS, u'test3@test.local'), + ] + + def test_load_good_ca_cert(self, backend): + cert = _load_cert( + os.path.join("x509", "PKITS_data", "certs", "GoodCACert.crt"), + x509.load_der_x509_certificate, + backend + ) + + assert cert.not_valid_before == datetime.datetime(2010, 1, 1, 8, 30) + assert cert.not_valid_after == datetime.datetime(2030, 12, 31, 8, 30) + assert cert.serial_number == 2 + public_key = cert.public_key() + assert isinstance(public_key, rsa.RSAPublicKey) + assert cert.version is x509.Version.v3 + fingerprint = binascii.hexlify(cert.fingerprint(hashes.SHA1())) + assert fingerprint == b"6f49779533d565e8b7c1062503eab41492c38e4d" + + def test_utc_pre_2000_not_before_cert(self, backend): + cert = _load_cert( + os.path.join( + "x509", "PKITS_data", "certs", + "Validpre2000UTCnotBeforeDateTest3EE.crt" + ), + x509.load_der_x509_certificate, + backend + ) + + assert cert.not_valid_before == datetime.datetime(1950, 1, 1, 12, 1) + + def test_pre_2000_utc_not_after_cert(self, backend): + cert = _load_cert( + os.path.join( + "x509", "PKITS_data", "certs", + "Invalidpre2000UTCEEnotAfterDateTest7EE.crt" + ), + x509.load_der_x509_certificate, + backend + ) + + assert cert.not_valid_after == datetime.datetime(1999, 1, 1, 12, 1) + + def test_post_2000_utc_cert(self, backend): + cert = _load_cert( + os.path.join("x509", "custom", "post2000utctime.pem"), + x509.load_pem_x509_certificate, + backend + ) + assert cert.not_valid_before == datetime.datetime( + 2014, 11, 26, 21, 41, 20 + ) + assert cert.not_valid_after == datetime.datetime( + 2014, 12, 26, 21, 41, 20 + ) + + def test_generalized_time_not_before_cert(self, backend): + cert = _load_cert( + os.path.join( + "x509", "PKITS_data", "certs", + "ValidGeneralizedTimenotBeforeDateTest4EE.crt" + ), + x509.load_der_x509_certificate, + backend + ) + assert cert.not_valid_before == datetime.datetime(2002, 1, 1, 12, 1) + assert cert.not_valid_after == datetime.datetime(2030, 12, 31, 8, 30) + assert cert.version is x509.Version.v3 + + def test_generalized_time_not_after_cert(self, backend): + cert = _load_cert( + os.path.join( + "x509", "PKITS_data", "certs", + "ValidGeneralizedTimenotAfterDateTest8EE.crt" + ), + x509.load_der_x509_certificate, + backend + ) + assert cert.not_valid_before == datetime.datetime(2010, 1, 1, 8, 30) + assert cert.not_valid_after == datetime.datetime(2050, 1, 1, 12, 1) + assert cert.version is x509.Version.v3 + + def test_invalid_version_cert(self, backend): + cert = _load_cert( + os.path.join("x509", "custom", "invalid_version.pem"), + x509.load_pem_x509_certificate, + backend + ) + with pytest.raises(x509.InvalidVersion) as exc: + cert.version + + assert exc.value.parsed_version == 7 + + def test_eq(self, backend): + cert = _load_cert( + os.path.join("x509", "custom", "post2000utctime.pem"), + x509.load_pem_x509_certificate, + backend + ) + cert2 = _load_cert( + os.path.join("x509", "custom", "post2000utctime.pem"), + x509.load_pem_x509_certificate, + backend + ) + assert cert == cert2 + + def test_ne(self, backend): + cert = _load_cert( + os.path.join("x509", "custom", "post2000utctime.pem"), + x509.load_pem_x509_certificate, + backend + ) + cert2 = _load_cert( + os.path.join( + "x509", "PKITS_data", "certs", + "ValidGeneralizedTimenotAfterDateTest8EE.crt" + ), + x509.load_der_x509_certificate, + backend + ) + assert cert != cert2 + assert cert != object() + + def test_hash(self, backend): + cert1 = _load_cert( + os.path.join("x509", "custom", "post2000utctime.pem"), + x509.load_pem_x509_certificate, + backend + ) + cert2 = _load_cert( + os.path.join("x509", "custom", "post2000utctime.pem"), + x509.load_pem_x509_certificate, + backend + ) + cert3 = _load_cert( + os.path.join( + "x509", "PKITS_data", "certs", + "ValidGeneralizedTimenotAfterDateTest8EE.crt" + ), + x509.load_der_x509_certificate, + backend + ) + + assert hash(cert1) == hash(cert2) + assert hash(cert1) != hash(cert3) + + def test_version_1_cert(self, backend): + cert = _load_cert( + os.path.join("x509", "v1_cert.pem"), + x509.load_pem_x509_certificate, + backend + ) + assert cert.version is x509.Version.v1 + + def test_invalid_pem(self, backend): + with pytest.raises(ValueError): + x509.load_pem_x509_certificate(b"notacert", backend) + + def test_invalid_der(self, backend): + with pytest.raises(ValueError): + x509.load_der_x509_certificate(b"notacert", backend) + + def test_unsupported_signature_hash_algorithm_cert(self, backend): + cert = _load_cert( + os.path.join("x509", "verisign_md2_root.pem"), + x509.load_pem_x509_certificate, + backend + ) + with pytest.raises(UnsupportedAlgorithm): + cert.signature_hash_algorithm + + def test_public_bytes_pem(self, backend): + # Load an existing certificate. + cert = _load_cert( + os.path.join("x509", "PKITS_data", "certs", "GoodCACert.crt"), + x509.load_der_x509_certificate, + backend + ) + + # Encode it to PEM and load it back. + cert = x509.load_pem_x509_certificate(cert.public_bytes( + encoding=serialization.Encoding.PEM, + ), backend) + + # We should recover what we had to start with. + assert cert.not_valid_before == datetime.datetime(2010, 1, 1, 8, 30) + assert cert.not_valid_after == datetime.datetime(2030, 12, 31, 8, 30) + assert cert.serial_number == 2 + public_key = cert.public_key() + assert isinstance(public_key, rsa.RSAPublicKey) + assert cert.version is x509.Version.v3 + fingerprint = binascii.hexlify(cert.fingerprint(hashes.SHA1())) + assert fingerprint == b"6f49779533d565e8b7c1062503eab41492c38e4d" + + def test_public_bytes_der(self, backend): + # Load an existing certificate. + cert = _load_cert( + os.path.join("x509", "PKITS_data", "certs", "GoodCACert.crt"), + x509.load_der_x509_certificate, + backend + ) + + # Encode it to DER and load it back. + cert = x509.load_der_x509_certificate(cert.public_bytes( + encoding=serialization.Encoding.DER, + ), backend) + + # We should recover what we had to start with. + assert cert.not_valid_before == datetime.datetime(2010, 1, 1, 8, 30) + assert cert.not_valid_after == datetime.datetime(2030, 12, 31, 8, 30) + assert cert.serial_number == 2 + public_key = cert.public_key() + assert isinstance(public_key, rsa.RSAPublicKey) + assert cert.version is x509.Version.v3 + fingerprint = binascii.hexlify(cert.fingerprint(hashes.SHA1())) + assert fingerprint == b"6f49779533d565e8b7c1062503eab41492c38e4d" + + def test_public_bytes_invalid_encoding(self, backend): + cert = _load_cert( + os.path.join("x509", "PKITS_data", "certs", "GoodCACert.crt"), + x509.load_der_x509_certificate, + backend + ) + + with pytest.raises(TypeError): + cert.public_bytes('NotAnEncoding') + + @pytest.mark.parametrize( + ("cert_path", "loader_func", "encoding"), + [ + ( + os.path.join("x509", "v1_cert.pem"), + x509.load_pem_x509_certificate, + serialization.Encoding.PEM, + ), + ( + os.path.join("x509", "PKITS_data", "certs", "GoodCACert.crt"), + x509.load_der_x509_certificate, + serialization.Encoding.DER, + ), + ] + ) + def test_public_bytes_match(self, cert_path, loader_func, encoding, + backend): + cert_bytes = load_vectors_from_file( + cert_path, lambda pemfile: pemfile.read(), mode="rb" + ) + cert = loader_func(cert_bytes, backend) + serialized = cert.public_bytes(encoding) + assert serialized == cert_bytes + + def test_certificate_repr(self, backend): + cert = _load_cert( + os.path.join( + "x509", "cryptography.io.pem" + ), + x509.load_pem_x509_certificate, + backend + ) + if six.PY3: + assert repr(cert) == ( + "<Certificate(subject=<Name([<NameAttribute(oid=<ObjectIdentif" + "ier(oid=2.5.4.11, name=organizationalUnitName)>, value='GT487" + "42965')>, <NameAttribute(oid=<ObjectIdentifier(oid=2.5.4.11, " + "name=organizationalUnitName)>, value='See www.rapidssl.com/re" + "sources/cps (c)14')>, <NameAttribute(oid=<ObjectIdentifier(oi" + "d=2.5.4.11, name=organizationalUnitName)>, value='Domain Cont" + "rol Validated - RapidSSL(R)')>, <NameAttribute(oid=<ObjectIde" + "ntifier(oid=2.5.4.3, name=commonName)>, value='www.cryptograp" + "hy.io')>])>, ...)>" + ) + else: + assert repr(cert) == ( + "<Certificate(subject=<Name([<NameAttribute(oid=<ObjectIdentif" + "ier(oid=2.5.4.11, name=organizationalUnitName)>, value=u'GT48" + "742965')>, <NameAttribute(oid=<ObjectIdentifier(oid=2.5.4.11," + " name=organizationalUnitName)>, value=u'See www.rapidssl.com/" + "resources/cps (c)14')>, <NameAttribute(oid=<ObjectIdentifier(" + "oid=2.5.4.11, name=organizationalUnitName)>, value=u'Domain C" + "ontrol Validated - RapidSSL(R)')>, <NameAttribute(oid=<Object" + "Identifier(oid=2.5.4.3, name=commonName)>, value=u'www.crypto" + "graphy.io')>])>, ...)>" + ) + + +@pytest.mark.requires_backend_interface(interface=RSABackend) +@pytest.mark.requires_backend_interface(interface=X509Backend) +class TestRSACertificateRequest(object): + @pytest.mark.parametrize( + ("path", "loader_func"), + [ + [ + os.path.join("x509", "requests", "rsa_sha1.pem"), + x509.load_pem_x509_csr + ], + [ + os.path.join("x509", "requests", "rsa_sha1.der"), + x509.load_der_x509_csr + ], + ] + ) + def test_load_rsa_certificate_request(self, path, loader_func, backend): + request = _load_cert(path, loader_func, backend) + assert isinstance(request.signature_hash_algorithm, hashes.SHA1) + assert ( + request.signature_algorithm_oid == + SignatureAlgorithmOID.RSA_WITH_SHA1 + ) + public_key = request.public_key() + assert isinstance(public_key, rsa.RSAPublicKey) + subject = request.subject + assert isinstance(subject, x509.Name) + assert list(subject) == [ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + x509.NameAttribute(NameOID.STATE_OR_PROVINCE_NAME, u'Texas'), + x509.NameAttribute(NameOID.LOCALITY_NAME, u'Austin'), + x509.NameAttribute(NameOID.ORGANIZATION_NAME, u'PyCA'), + x509.NameAttribute(NameOID.COMMON_NAME, u'cryptography.io'), + ] + extensions = request.extensions + assert isinstance(extensions, x509.Extensions) + assert list(extensions) == [] + + @pytest.mark.parametrize( + "loader_func", + [x509.load_pem_x509_csr, x509.load_der_x509_csr] + ) + def test_invalid_certificate_request(self, loader_func, backend): + with pytest.raises(ValueError): + loader_func(b"notacsr", backend) + + def test_unsupported_signature_hash_algorithm_request(self, backend): + request = _load_cert( + os.path.join("x509", "requests", "rsa_md4.pem"), + x509.load_pem_x509_csr, + backend + ) + with pytest.raises(UnsupportedAlgorithm): + request.signature_hash_algorithm + + def test_duplicate_extension(self, backend): + request = _load_cert( + os.path.join( + "x509", "requests", "two_basic_constraints.pem" + ), + x509.load_pem_x509_csr, + backend + ) + with pytest.raises(x509.DuplicateExtension) as exc: + request.extensions + + assert exc.value.oid == ExtensionOID.BASIC_CONSTRAINTS + + def test_unsupported_critical_extension(self, backend): + request = _load_cert( + os.path.join( + "x509", "requests", "unsupported_extension_critical.pem" + ), + x509.load_pem_x509_csr, + backend + ) + ext = request.extensions.get_extension_for_oid( + x509.ObjectIdentifier('1.2.3.4') + ) + assert ext.value.value == b"value" + + def test_unsupported_extension(self, backend): + request = _load_cert( + os.path.join( + "x509", "requests", "unsupported_extension.pem" + ), + x509.load_pem_x509_csr, + backend + ) + extensions = request.extensions + assert len(extensions) == 1 + assert extensions[0].oid == x509.ObjectIdentifier("1.2.3.4") + assert extensions[0].value == x509.UnrecognizedExtension( + x509.ObjectIdentifier("1.2.3.4"), b"value" + ) + + def test_request_basic_constraints(self, backend): + request = _load_cert( + os.path.join( + "x509", "requests", "basic_constraints.pem" + ), + x509.load_pem_x509_csr, + backend + ) + extensions = request.extensions + assert isinstance(extensions, x509.Extensions) + assert list(extensions) == [ + x509.Extension( + ExtensionOID.BASIC_CONSTRAINTS, + True, + x509.BasicConstraints(ca=True, path_length=1), + ), + ] + + def test_subject_alt_name(self, backend): + request = _load_cert( + os.path.join("x509", "requests", "san_rsa_sha1.pem"), + x509.load_pem_x509_csr, + backend, + ) + ext = request.extensions.get_extension_for_oid( + ExtensionOID.SUBJECT_ALTERNATIVE_NAME + ) + assert list(ext.value) == [ + x509.DNSName(b"cryptography.io"), + x509.DNSName(b"sub.cryptography.io"), + ] + + def test_public_bytes_pem(self, backend): + # Load an existing CSR. + request = _load_cert( + os.path.join("x509", "requests", "rsa_sha1.pem"), + x509.load_pem_x509_csr, + backend + ) + + # Encode it to PEM and load it back. + request = x509.load_pem_x509_csr(request.public_bytes( + encoding=serialization.Encoding.PEM, + ), backend) + + # We should recover what we had to start with. + assert isinstance(request.signature_hash_algorithm, hashes.SHA1) + public_key = request.public_key() + assert isinstance(public_key, rsa.RSAPublicKey) + subject = request.subject + assert isinstance(subject, x509.Name) + assert list(subject) == [ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + x509.NameAttribute(NameOID.STATE_OR_PROVINCE_NAME, u'Texas'), + x509.NameAttribute(NameOID.LOCALITY_NAME, u'Austin'), + x509.NameAttribute(NameOID.ORGANIZATION_NAME, u'PyCA'), + x509.NameAttribute(NameOID.COMMON_NAME, u'cryptography.io'), + ] + + def test_public_bytes_der(self, backend): + # Load an existing CSR. + request = _load_cert( + os.path.join("x509", "requests", "rsa_sha1.pem"), + x509.load_pem_x509_csr, + backend + ) + + # Encode it to DER and load it back. + request = x509.load_der_x509_csr(request.public_bytes( + encoding=serialization.Encoding.DER, + ), backend) + + # We should recover what we had to start with. + assert isinstance(request.signature_hash_algorithm, hashes.SHA1) + public_key = request.public_key() + assert isinstance(public_key, rsa.RSAPublicKey) + subject = request.subject + assert isinstance(subject, x509.Name) + assert list(subject) == [ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + x509.NameAttribute(NameOID.STATE_OR_PROVINCE_NAME, u'Texas'), + x509.NameAttribute(NameOID.LOCALITY_NAME, u'Austin'), + x509.NameAttribute(NameOID.ORGANIZATION_NAME, u'PyCA'), + x509.NameAttribute(NameOID.COMMON_NAME, u'cryptography.io'), + ] + + def test_signature(self, backend): + request = _load_cert( + os.path.join("x509", "requests", "rsa_sha1.pem"), + x509.load_pem_x509_csr, + backend + ) + assert request.signature == binascii.unhexlify( + b"8364c86ffbbfe0bfc9a21f831256658ca8989741b80576d36f08a934603a43b1" + b"837246d00167a518abb1de7b51a1e5b7ebea14944800818b1a923c804f120a0d" + b"624f6310ef79e8612755c2b01dcc7f59dfdbce0db3f2630f185f504b8c17af80" + b"cbd364fa5fda68337153930948226cd4638287a0aed6524d3006885c19028a1e" + b"e2f5a91d6e77dbaa0b49996ee0a0c60b55b61bd080a08bb34aa7f3e07e91f37f" + b"6a11645be2d8654c1570dcda145ed7cc92017f7d53225d7f283f3459ec5bda41" + b"cf6dd75d43676c543483385226b7e4fa29c8739f1b0eaf199613593991979862" + b"e36181e8c4c270c354b7f52c128db1b70639823324c7ea24791b7bc3d7005f3b" + ) + + def test_tbs_certrequest_bytes(self, backend): + request = _load_cert( + os.path.join("x509", "requests", "rsa_sha1.pem"), + x509.load_pem_x509_csr, + backend + ) + assert request.tbs_certrequest_bytes == binascii.unhexlify( + b"308201840201003057310b3009060355040613025553310e300c060355040813" + b"055465786173310f300d0603550407130641757374696e310d300b060355040a" + b"130450794341311830160603550403130f63727970746f6772617068792e696f" + b"30820122300d06092a864886f70d01010105000382010f003082010a02820101" + b"00a840a78460cb861066dfa3045a94ba6cf1b7ab9d24c761cffddcc2cb5e3f1d" + b"c3e4be253e7039ef14fe9d6d2304f50d9f2e1584c51530ab75086f357138bff7" + b"b854d067d1d5f384f1f2f2c39cc3b15415e2638554ef8402648ae3ef08336f22" + b"b7ecc6d4331c2b21c3091a7f7a9518180754a646640b60419e4cc6f5c798110a" + b"7f030a639fe87e33b4776dfcd993940ec776ab57a181ad8598857976dc303f9a" + b"573ca619ab3fe596328e92806b828683edc17cc256b41948a2bfa8d047d2158d" + b"3d8e069aa05fa85b3272abb1c4b4422b6366f3b70e642377b145cd6259e5d3e7" + b"db048d51921e50766a37b1b130ee6b11f507d20a834001e8de16a92c14f2e964" + b"a30203010001a000" + ) + verifier = request.public_key().verifier( + request.signature, + padding.PKCS1v15(), + request.signature_hash_algorithm + ) + verifier.update(request.tbs_certrequest_bytes) + verifier.verify() + + def test_public_bytes_invalid_encoding(self, backend): + request = _load_cert( + os.path.join("x509", "requests", "rsa_sha1.pem"), + x509.load_pem_x509_csr, + backend + ) + + with pytest.raises(TypeError): + request.public_bytes('NotAnEncoding') + + def test_signature_invalid(self, backend): + request = _load_cert( + os.path.join("x509", "requests", "invalid_signature.pem"), + x509.load_pem_x509_csr, + backend + ) + assert not request.is_signature_valid + + def test_signature_valid(self, backend): + request = _load_cert( + os.path.join("x509", "requests", "rsa_sha256.pem"), + x509.load_pem_x509_csr, + backend + ) + assert request.is_signature_valid + + @pytest.mark.parametrize( + ("request_path", "loader_func", "encoding"), + [ + ( + os.path.join("x509", "requests", "rsa_sha1.pem"), + x509.load_pem_x509_csr, + serialization.Encoding.PEM, + ), + ( + os.path.join("x509", "requests", "rsa_sha1.der"), + x509.load_der_x509_csr, + serialization.Encoding.DER, + ), + ] + ) + def test_public_bytes_match(self, request_path, loader_func, encoding, + backend): + request_bytes = load_vectors_from_file( + request_path, lambda pemfile: pemfile.read(), mode="rb" + ) + request = loader_func(request_bytes, backend) + serialized = request.public_bytes(encoding) + assert serialized == request_bytes + + def test_eq(self, backend): + request1 = _load_cert( + os.path.join("x509", "requests", "rsa_sha1.pem"), + x509.load_pem_x509_csr, + backend + ) + request2 = _load_cert( + os.path.join("x509", "requests", "rsa_sha1.pem"), + x509.load_pem_x509_csr, + backend + ) + + assert request1 == request2 + + def test_ne(self, backend): + request1 = _load_cert( + os.path.join("x509", "requests", "rsa_sha1.pem"), + x509.load_pem_x509_csr, + backend + ) + request2 = _load_cert( + os.path.join("x509", "requests", "san_rsa_sha1.pem"), + x509.load_pem_x509_csr, + backend + ) + + assert request1 != request2 + assert request1 != object() + + def test_hash(self, backend): + request1 = _load_cert( + os.path.join("x509", "requests", "rsa_sha1.pem"), + x509.load_pem_x509_csr, + backend + ) + request2 = _load_cert( + os.path.join("x509", "requests", "rsa_sha1.pem"), + x509.load_pem_x509_csr, + backend + ) + request3 = _load_cert( + os.path.join("x509", "requests", "san_rsa_sha1.pem"), + x509.load_pem_x509_csr, + backend + ) + + assert hash(request1) == hash(request2) + assert hash(request1) != hash(request3) + + def test_build_cert(self, backend): + issuer_private_key = RSA_KEY_2048.private_key(backend) + subject_private_key = RSA_KEY_2048.private_key(backend) + + not_valid_before = datetime.datetime(2002, 1, 1, 12, 1) + not_valid_after = datetime.datetime(2030, 12, 31, 8, 30) + + builder = x509.CertificateBuilder().serial_number( + 777 + ).issuer_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + x509.NameAttribute(NameOID.STATE_OR_PROVINCE_NAME, u'Texas'), + x509.NameAttribute(NameOID.LOCALITY_NAME, u'Austin'), + x509.NameAttribute(NameOID.ORGANIZATION_NAME, u'PyCA'), + x509.NameAttribute(NameOID.COMMON_NAME, u'cryptography.io'), + ])).subject_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + x509.NameAttribute(NameOID.STATE_OR_PROVINCE_NAME, u'Texas'), + x509.NameAttribute(NameOID.LOCALITY_NAME, u'Austin'), + x509.NameAttribute(NameOID.ORGANIZATION_NAME, u'PyCA'), + x509.NameAttribute(NameOID.COMMON_NAME, u'cryptography.io'), + ])).public_key( + subject_private_key.public_key() + ).add_extension( + x509.BasicConstraints(ca=False, path_length=None), True, + ).add_extension( + x509.SubjectAlternativeName([x509.DNSName(b"cryptography.io")]), + critical=False, + ).not_valid_before( + not_valid_before + ).not_valid_after( + not_valid_after + ) + + cert = builder.sign(issuer_private_key, hashes.SHA1(), backend) + + assert cert.version is x509.Version.v3 + assert cert.not_valid_before == not_valid_before + assert cert.not_valid_after == not_valid_after + basic_constraints = cert.extensions.get_extension_for_oid( + ExtensionOID.BASIC_CONSTRAINTS + ) + assert basic_constraints.value.ca is False + assert basic_constraints.value.path_length is None + subject_alternative_name = cert.extensions.get_extension_for_oid( + ExtensionOID.SUBJECT_ALTERNATIVE_NAME + ) + assert list(subject_alternative_name.value) == [ + x509.DNSName(b"cryptography.io"), + ] + + def test_build_cert_printable_string_country_name(self, backend): + issuer_private_key = RSA_KEY_2048.private_key(backend) + subject_private_key = RSA_KEY_2048.private_key(backend) + + not_valid_before = datetime.datetime(2002, 1, 1, 12, 1) + not_valid_after = datetime.datetime(2030, 12, 31, 8, 30) + + builder = x509.CertificateBuilder().serial_number( + 777 + ).issuer_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + x509.NameAttribute(NameOID.JURISDICTION_COUNTRY_NAME, u'US'), + x509.NameAttribute(NameOID.STATE_OR_PROVINCE_NAME, u'Texas'), + ])).subject_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + x509.NameAttribute(NameOID.JURISDICTION_COUNTRY_NAME, u'US'), + x509.NameAttribute(NameOID.STATE_OR_PROVINCE_NAME, u'Texas'), + ])).public_key( + subject_private_key.public_key() + ).not_valid_before( + not_valid_before + ).not_valid_after( + not_valid_after + ) + + cert = builder.sign(issuer_private_key, hashes.SHA256(), backend) + + parsed = Certificate.load( + cert.public_bytes(serialization.Encoding.DER)) + + # Check that each value was encoded as an ASN.1 PRINTABLESTRING. + assert parsed.subject.chosen[0][0]['value'].chosen.tag == 19 + assert parsed.issuer.chosen[0][0]['value'].chosen.tag == 19 + if ( + # This only works correctly in OpenSSL 1.1.0f+ and 1.0.2l+ + backend._lib.CRYPTOGRAPHY_OPENSSL_110F_OR_GREATER or ( + backend._lib.CRYPTOGRAPHY_OPENSSL_102L_OR_GREATER and + not backend._lib.CRYPTOGRAPHY_OPENSSL_110_OR_GREATER + ) + ): + assert parsed.subject.chosen[1][0]['value'].chosen.tag == 19 + assert parsed.issuer.chosen[1][0]['value'].chosen.tag == 19 + + +class TestCertificateBuilder(object): + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_checks_for_unsupported_extensions(self, backend): + private_key = RSA_KEY_2048.private_key(backend) + builder = x509.CertificateBuilder().subject_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).issuer_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).public_key( + private_key.public_key() + ).serial_number( + 777 + ).not_valid_before( + datetime.datetime(1999, 1, 1) + ).not_valid_after( + datetime.datetime(2020, 1, 1) + ).add_extension( + DummyExtension(), False + ) + + with pytest.raises(NotImplementedError): + builder.sign(private_key, hashes.SHA1(), backend) + + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_encode_nonstandard_aia(self, backend): + private_key = RSA_KEY_2048.private_key(backend) + + aia = x509.AuthorityInformationAccess([ + x509.AccessDescription( + x509.ObjectIdentifier("2.999.7"), + x509.UniformResourceIdentifier(b"http://example.com") + ), + ]) + + builder = x509.CertificateBuilder().subject_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).issuer_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).public_key( + private_key.public_key() + ).serial_number( + 777 + ).not_valid_before( + datetime.datetime(1999, 1, 1) + ).not_valid_after( + datetime.datetime(2020, 1, 1) + ).add_extension( + aia, False + ) + + builder.sign(private_key, hashes.SHA256(), backend) + + @pytest.mark.skipif(sys.platform != "win32", reason="Requires windows") + @pytest.mark.parametrize( + ("not_valid_before", "not_valid_after"), + [ + [datetime.datetime(1999, 1, 1), datetime.datetime(9999, 1, 1)], + [datetime.datetime(9999, 1, 1), datetime.datetime(9999, 12, 31)], + ] + ) + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_invalid_time_windows(self, not_valid_before, not_valid_after, + backend): + private_key = RSA_KEY_2048.private_key(backend) + builder = x509.CertificateBuilder().subject_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).issuer_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).public_key( + private_key.public_key() + ).serial_number( + 777 + ).not_valid_before( + not_valid_before + ).not_valid_after( + not_valid_after + ) + with pytest.raises(ValueError): + builder.sign(private_key, hashes.SHA256(), backend) + + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_no_subject_name(self, backend): + subject_private_key = RSA_KEY_2048.private_key(backend) + builder = x509.CertificateBuilder().serial_number( + 777 + ).issuer_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).public_key( + subject_private_key.public_key() + ).not_valid_before( + datetime.datetime(2002, 1, 1, 12, 1) + ).not_valid_after( + datetime.datetime(2030, 12, 31, 8, 30) + ) + with pytest.raises(ValueError): + builder.sign(subject_private_key, hashes.SHA256(), backend) + + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_no_issuer_name(self, backend): + subject_private_key = RSA_KEY_2048.private_key(backend) + builder = x509.CertificateBuilder().serial_number( + 777 + ).subject_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).public_key( + subject_private_key.public_key() + ).not_valid_before( + datetime.datetime(2002, 1, 1, 12, 1) + ).not_valid_after( + datetime.datetime(2030, 12, 31, 8, 30) + ) + with pytest.raises(ValueError): + builder.sign(subject_private_key, hashes.SHA256(), backend) + + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_no_public_key(self, backend): + subject_private_key = RSA_KEY_2048.private_key(backend) + builder = x509.CertificateBuilder().serial_number( + 777 + ).issuer_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).subject_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).not_valid_before( + datetime.datetime(2002, 1, 1, 12, 1) + ).not_valid_after( + datetime.datetime(2030, 12, 31, 8, 30) + ) + with pytest.raises(ValueError): + builder.sign(subject_private_key, hashes.SHA256(), backend) + + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_no_not_valid_before(self, backend): + subject_private_key = RSA_KEY_2048.private_key(backend) + builder = x509.CertificateBuilder().serial_number( + 777 + ).issuer_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).subject_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).public_key( + subject_private_key.public_key() + ).not_valid_after( + datetime.datetime(2030, 12, 31, 8, 30) + ) + with pytest.raises(ValueError): + builder.sign(subject_private_key, hashes.SHA256(), backend) + + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_no_not_valid_after(self, backend): + subject_private_key = RSA_KEY_2048.private_key(backend) + builder = x509.CertificateBuilder().serial_number( + 777 + ).issuer_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).subject_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).public_key( + subject_private_key.public_key() + ).not_valid_before( + datetime.datetime(2002, 1, 1, 12, 1) + ) + with pytest.raises(ValueError): + builder.sign(subject_private_key, hashes.SHA256(), backend) + + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_no_serial_number(self, backend): + subject_private_key = RSA_KEY_2048.private_key(backend) + builder = x509.CertificateBuilder().issuer_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).subject_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).public_key( + subject_private_key.public_key() + ).not_valid_before( + datetime.datetime(2002, 1, 1, 12, 1) + ).not_valid_after( + datetime.datetime(2030, 12, 31, 8, 30) + ) + with pytest.raises(ValueError): + builder.sign(subject_private_key, hashes.SHA256(), backend) + + def test_issuer_name_must_be_a_name_type(self): + builder = x509.CertificateBuilder() + + with pytest.raises(TypeError): + builder.issuer_name("subject") + + with pytest.raises(TypeError): + builder.issuer_name(object) + + def test_issuer_name_may_only_be_set_once(self): + name = x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ]) + builder = x509.CertificateBuilder().issuer_name(name) + + with pytest.raises(ValueError): + builder.issuer_name(name) + + def test_subject_name_must_be_a_name_type(self): + builder = x509.CertificateBuilder() + + with pytest.raises(TypeError): + builder.subject_name("subject") + + with pytest.raises(TypeError): + builder.subject_name(object) + + def test_subject_name_may_only_be_set_once(self): + name = x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ]) + builder = x509.CertificateBuilder().subject_name(name) + + with pytest.raises(ValueError): + builder.subject_name(name) + + def test_not_valid_before_after_not_valid_after(self): + builder = x509.CertificateBuilder() + + builder = builder.not_valid_after( + datetime.datetime(2002, 1, 1, 12, 1) + ) + with pytest.raises(ValueError): + builder.not_valid_before( + datetime.datetime(2003, 1, 1, 12, 1) + ) + + def test_not_valid_after_before_not_valid_before(self): + builder = x509.CertificateBuilder() + + builder = builder.not_valid_before( + datetime.datetime(2002, 1, 1, 12, 1) + ) + with pytest.raises(ValueError): + builder.not_valid_after( + datetime.datetime(2001, 1, 1, 12, 1) + ) + + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_public_key_must_be_public_key(self, backend): + private_key = RSA_KEY_2048.private_key(backend) + builder = x509.CertificateBuilder() + + with pytest.raises(TypeError): + builder.public_key(private_key) + + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_public_key_may_only_be_set_once(self, backend): + private_key = RSA_KEY_2048.private_key(backend) + public_key = private_key.public_key() + builder = x509.CertificateBuilder().public_key(public_key) + + with pytest.raises(ValueError): + builder.public_key(public_key) + + def test_serial_number_must_be_an_integer_type(self): + with pytest.raises(TypeError): + x509.CertificateBuilder().serial_number(10.0) + + def test_serial_number_must_be_non_negative(self): + with pytest.raises(ValueError): + x509.CertificateBuilder().serial_number(-1) + + def test_serial_number_must_be_positive(self): + with pytest.raises(ValueError): + x509.CertificateBuilder().serial_number(0) + + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_minimal_serial_number(self, backend): + subject_private_key = RSA_KEY_2048.private_key(backend) + builder = x509.CertificateBuilder().serial_number( + 1 + ).subject_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'RU'), + ])).issuer_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'RU'), + ])).public_key( + subject_private_key.public_key() + ).not_valid_before( + datetime.datetime(2002, 1, 1, 12, 1) + ).not_valid_after( + datetime.datetime(2030, 12, 31, 8, 30) + ) + cert = builder.sign(subject_private_key, hashes.SHA256(), backend) + assert cert.serial_number == 1 + + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_biggest_serial_number(self, backend): + subject_private_key = RSA_KEY_2048.private_key(backend) + builder = x509.CertificateBuilder().serial_number( + (1 << 159) - 1 + ).subject_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'RU'), + ])).issuer_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'RU'), + ])).public_key( + subject_private_key.public_key() + ).not_valid_before( + datetime.datetime(2002, 1, 1, 12, 1) + ).not_valid_after( + datetime.datetime(2030, 12, 31, 8, 30) + ) + cert = builder.sign(subject_private_key, hashes.SHA256(), backend) + assert cert.serial_number == (1 << 159) - 1 + + def test_serial_number_must_be_less_than_160_bits_long(self): + with pytest.raises(ValueError): + x509.CertificateBuilder().serial_number(1 << 159) + + def test_serial_number_may_only_be_set_once(self): + builder = x509.CertificateBuilder().serial_number(10) + + with pytest.raises(ValueError): + builder.serial_number(20) + + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_aware_not_valid_after(self, backend): + time = datetime.datetime(2012, 1, 16, 22, 43) + tz = pytz.timezone("US/Pacific") + time = tz.localize(time) + utc_time = datetime.datetime(2012, 1, 17, 6, 43) + private_key = RSA_KEY_2048.private_key(backend) + cert_builder = x509.CertificateBuilder().not_valid_after(time) + cert_builder = cert_builder.subject_name( + x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')]) + ).issuer_name( + x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')]) + ).serial_number( + 1 + ).public_key( + private_key.public_key() + ).not_valid_before( + utc_time - datetime.timedelta(days=365) + ) + + cert = cert_builder.sign(private_key, hashes.SHA256(), backend) + assert cert.not_valid_after == utc_time + + def test_invalid_not_valid_after(self): + with pytest.raises(TypeError): + x509.CertificateBuilder().not_valid_after(104204304504) + + with pytest.raises(TypeError): + x509.CertificateBuilder().not_valid_after(datetime.time()) + + with pytest.raises(ValueError): + x509.CertificateBuilder().not_valid_after( + datetime.datetime(1960, 8, 10) + ) + + def test_not_valid_after_may_only_be_set_once(self): + builder = x509.CertificateBuilder().not_valid_after( + datetime.datetime.now() + ) + + with pytest.raises(ValueError): + builder.not_valid_after( + datetime.datetime.now() + ) + + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_aware_not_valid_before(self, backend): + time = datetime.datetime(2012, 1, 16, 22, 43) + tz = pytz.timezone("US/Pacific") + time = tz.localize(time) + utc_time = datetime.datetime(2012, 1, 17, 6, 43) + private_key = RSA_KEY_2048.private_key(backend) + cert_builder = x509.CertificateBuilder().not_valid_before(time) + cert_builder = cert_builder.subject_name( + x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')]) + ).issuer_name( + x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')]) + ).serial_number( + 1 + ).public_key( + private_key.public_key() + ).not_valid_after( + utc_time + datetime.timedelta(days=366) + ) + + cert = cert_builder.sign(private_key, hashes.SHA256(), backend) + assert cert.not_valid_before == utc_time + + def test_invalid_not_valid_before(self): + with pytest.raises(TypeError): + x509.CertificateBuilder().not_valid_before(104204304504) + + with pytest.raises(TypeError): + x509.CertificateBuilder().not_valid_before(datetime.time()) + + with pytest.raises(ValueError): + x509.CertificateBuilder().not_valid_before( + datetime.datetime(1960, 8, 10) + ) + + def test_not_valid_before_may_only_be_set_once(self): + builder = x509.CertificateBuilder().not_valid_before( + datetime.datetime.now() + ) + + with pytest.raises(ValueError): + builder.not_valid_before( + datetime.datetime.now() + ) + + def test_add_extension_checks_for_duplicates(self): + builder = x509.CertificateBuilder().add_extension( + x509.BasicConstraints(ca=False, path_length=None), True, + ) + + with pytest.raises(ValueError): + builder.add_extension( + x509.BasicConstraints(ca=False, path_length=None), True, + ) + + def test_add_invalid_extension_type(self): + builder = x509.CertificateBuilder() + + with pytest.raises(TypeError): + builder.add_extension(object(), False) + + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_sign_with_unsupported_hash(self, backend): + private_key = RSA_KEY_2048.private_key(backend) + builder = x509.CertificateBuilder() + builder = builder.subject_name( + x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')]) + ).issuer_name( + x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')]) + ).serial_number( + 1 + ).public_key( + private_key.public_key() + ).not_valid_before( + datetime.datetime(2002, 1, 1, 12, 1) + ).not_valid_after( + datetime.datetime(2032, 1, 1, 12, 1) + ) + + with pytest.raises(TypeError): + builder.sign(private_key, object(), backend) + + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_sign_rsa_with_md5(self, backend): + private_key = RSA_KEY_2048.private_key(backend) + builder = x509.CertificateBuilder() + builder = builder.subject_name( + x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')]) + ).issuer_name( + x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')]) + ).serial_number( + 1 + ).public_key( + private_key.public_key() + ).not_valid_before( + datetime.datetime(2002, 1, 1, 12, 1) + ).not_valid_after( + datetime.datetime(2032, 1, 1, 12, 1) + ) + cert = builder.sign(private_key, hashes.MD5(), backend) + assert isinstance(cert.signature_hash_algorithm, hashes.MD5) + + @pytest.mark.requires_backend_interface(interface=DSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_sign_dsa_with_md5(self, backend): + private_key = DSA_KEY_2048.private_key(backend) + builder = x509.CertificateBuilder() + builder = builder.subject_name( + x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')]) + ).issuer_name( + x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')]) + ).serial_number( + 1 + ).public_key( + private_key.public_key() + ).not_valid_before( + datetime.datetime(2002, 1, 1, 12, 1) + ).not_valid_after( + datetime.datetime(2032, 1, 1, 12, 1) + ) + with pytest.raises(ValueError): + builder.sign(private_key, hashes.MD5(), backend) + + @pytest.mark.requires_backend_interface(interface=EllipticCurveBackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_sign_ec_with_md5(self, backend): + _skip_curve_unsupported(backend, ec.SECP256R1()) + private_key = EC_KEY_SECP256R1.private_key(backend) + builder = x509.CertificateBuilder() + builder = builder.subject_name( + x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')]) + ).issuer_name( + x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')]) + ).serial_number( + 1 + ).public_key( + private_key.public_key() + ).not_valid_before( + datetime.datetime(2002, 1, 1, 12, 1) + ).not_valid_after( + datetime.datetime(2032, 1, 1, 12, 1) + ) + with pytest.raises(ValueError): + builder.sign(private_key, hashes.MD5(), backend) + + @pytest.mark.parametrize( + "cdp", + [ + x509.CRLDistributionPoints([ + x509.DistributionPoint( + full_name=None, + relative_name=x509.RelativeDistinguishedName([ + x509.NameAttribute( + NameOID.COMMON_NAME, + u"indirect CRL for indirectCRL CA3" + ), + ]), + reasons=None, + crl_issuer=[x509.DirectoryName( + x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u"US"), + x509.NameAttribute( + NameOID.ORGANIZATION_NAME, + u"Test Certificates 2011" + ), + x509.NameAttribute( + NameOID.ORGANIZATIONAL_UNIT_NAME, + u"indirectCRL CA3 cRLIssuer" + ), + ]) + )], + ) + ]), + x509.CRLDistributionPoints([ + x509.DistributionPoint( + full_name=[x509.DirectoryName( + x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u"US"), + ]) + )], + relative_name=None, + reasons=None, + crl_issuer=[x509.DirectoryName( + x509.Name([ + x509.NameAttribute( + NameOID.ORGANIZATION_NAME, + u"cryptography Testing" + ), + ]) + )], + ) + ]), + x509.CRLDistributionPoints([ + x509.DistributionPoint( + full_name=[ + x509.UniformResourceIdentifier( + u"http://myhost.com/myca.crl" + ), + x509.UniformResourceIdentifier( + u"http://backup.myhost.com/myca.crl" + ) + ], + relative_name=None, + reasons=frozenset([ + x509.ReasonFlags.key_compromise, + x509.ReasonFlags.ca_compromise + ]), + crl_issuer=[x509.DirectoryName( + x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u"US"), + x509.NameAttribute( + NameOID.COMMON_NAME, u"cryptography CA" + ), + ]) + )], + ) + ]), + x509.CRLDistributionPoints([ + x509.DistributionPoint( + full_name=[x509.UniformResourceIdentifier( + u"http://domain.com/some.crl" + )], + relative_name=None, + reasons=frozenset([ + x509.ReasonFlags.key_compromise, + x509.ReasonFlags.ca_compromise, + x509.ReasonFlags.affiliation_changed, + x509.ReasonFlags.superseded, + x509.ReasonFlags.privilege_withdrawn, + x509.ReasonFlags.cessation_of_operation, + x509.ReasonFlags.aa_compromise, + x509.ReasonFlags.certificate_hold, + ]), + crl_issuer=None + ) + ]), + x509.CRLDistributionPoints([ + x509.DistributionPoint( + full_name=None, + relative_name=None, + reasons=None, + crl_issuer=[x509.DirectoryName( + x509.Name([ + x509.NameAttribute( + NameOID.COMMON_NAME, u"cryptography CA" + ), + ]) + )], + ) + ]), + x509.CRLDistributionPoints([ + x509.DistributionPoint( + full_name=[x509.UniformResourceIdentifier( + u"http://domain.com/some.crl" + )], + relative_name=None, + reasons=frozenset([x509.ReasonFlags.aa_compromise]), + crl_issuer=None + ) + ]) + ] + ) + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_crl_distribution_points(self, backend, cdp): + issuer_private_key = RSA_KEY_2048.private_key(backend) + subject_private_key = RSA_KEY_2048.private_key(backend) + + builder = x509.CertificateBuilder().serial_number( + 4444444 + ).issuer_name(x509.Name([ + x509.NameAttribute(NameOID.LOCALITY_NAME, u'Austin'), + ])).subject_name(x509.Name([ + x509.NameAttribute(NameOID.LOCALITY_NAME, u'Austin'), + ])).public_key( + subject_private_key.public_key() + ).add_extension( + cdp, + critical=False, + ).not_valid_before( + datetime.datetime(2002, 1, 1, 12, 1) + ).not_valid_after( + datetime.datetime(2030, 12, 31, 8, 30) + ) + + cert = builder.sign(issuer_private_key, hashes.SHA1(), backend) + + ext = cert.extensions.get_extension_for_oid( + ExtensionOID.CRL_DISTRIBUTION_POINTS + ) + assert ext.critical is False + assert ext.value == cdp + + @pytest.mark.requires_backend_interface(interface=DSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_build_cert_with_dsa_private_key(self, backend): + issuer_private_key = DSA_KEY_2048.private_key(backend) + subject_private_key = DSA_KEY_2048.private_key(backend) + + not_valid_before = datetime.datetime(2002, 1, 1, 12, 1) + not_valid_after = datetime.datetime(2030, 12, 31, 8, 30) + + builder = x509.CertificateBuilder().serial_number( + 777 + ).issuer_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).subject_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).public_key( + subject_private_key.public_key() + ).add_extension( + x509.BasicConstraints(ca=False, path_length=None), True, + ).add_extension( + x509.SubjectAlternativeName([x509.DNSName(b"cryptography.io")]), + critical=False, + ).not_valid_before( + not_valid_before + ).not_valid_after( + not_valid_after + ) + + cert = builder.sign(issuer_private_key, hashes.SHA1(), backend) + + assert cert.version is x509.Version.v3 + assert cert.not_valid_before == not_valid_before + assert cert.not_valid_after == not_valid_after + basic_constraints = cert.extensions.get_extension_for_oid( + ExtensionOID.BASIC_CONSTRAINTS + ) + assert basic_constraints.value.ca is False + assert basic_constraints.value.path_length is None + subject_alternative_name = cert.extensions.get_extension_for_oid( + ExtensionOID.SUBJECT_ALTERNATIVE_NAME + ) + assert list(subject_alternative_name.value) == [ + x509.DNSName(b"cryptography.io"), + ] + + @pytest.mark.requires_backend_interface(interface=EllipticCurveBackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_build_cert_with_ec_private_key(self, backend): + _skip_curve_unsupported(backend, ec.SECP256R1()) + issuer_private_key = ec.generate_private_key(ec.SECP256R1(), backend) + subject_private_key = ec.generate_private_key(ec.SECP256R1(), backend) + + not_valid_before = datetime.datetime(2002, 1, 1, 12, 1) + not_valid_after = datetime.datetime(2030, 12, 31, 8, 30) + + builder = x509.CertificateBuilder().serial_number( + 777 + ).issuer_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).subject_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).public_key( + subject_private_key.public_key() + ).add_extension( + x509.BasicConstraints(ca=False, path_length=None), True, + ).add_extension( + x509.SubjectAlternativeName([x509.DNSName(b"cryptography.io")]), + critical=False, + ).not_valid_before( + not_valid_before + ).not_valid_after( + not_valid_after + ) + + cert = builder.sign(issuer_private_key, hashes.SHA1(), backend) + + assert cert.version is x509.Version.v3 + assert cert.not_valid_before == not_valid_before + assert cert.not_valid_after == not_valid_after + basic_constraints = cert.extensions.get_extension_for_oid( + ExtensionOID.BASIC_CONSTRAINTS + ) + assert basic_constraints.value.ca is False + assert basic_constraints.value.path_length is None + subject_alternative_name = cert.extensions.get_extension_for_oid( + ExtensionOID.SUBJECT_ALTERNATIVE_NAME + ) + assert list(subject_alternative_name.value) == [ + x509.DNSName(b"cryptography.io"), + ] + + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_build_cert_with_rsa_key_too_small(self, backend): + issuer_private_key = RSA_KEY_512.private_key(backend) + subject_private_key = RSA_KEY_512.private_key(backend) + + not_valid_before = datetime.datetime(2002, 1, 1, 12, 1) + not_valid_after = datetime.datetime(2030, 12, 31, 8, 30) + + builder = x509.CertificateBuilder().serial_number( + 777 + ).issuer_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).subject_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).public_key( + subject_private_key.public_key() + ).not_valid_before( + not_valid_before + ).not_valid_after( + not_valid_after + ) + + with pytest.raises(ValueError): + builder.sign(issuer_private_key, hashes.SHA512(), backend) + + @pytest.mark.parametrize( + "cp", + [ + x509.CertificatePolicies([ + x509.PolicyInformation( + x509.ObjectIdentifier("2.16.840.1.12345.1.2.3.4.1"), + [u"http://other.com/cps"] + ) + ]), + x509.CertificatePolicies([ + x509.PolicyInformation( + x509.ObjectIdentifier("2.16.840.1.12345.1.2.3.4.1"), + None + ) + ]), + x509.CertificatePolicies([ + x509.PolicyInformation( + x509.ObjectIdentifier("2.16.840.1.12345.1.2.3.4.1"), + [ + u"http://example.com/cps", + u"http://other.com/cps", + x509.UserNotice( + x509.NoticeReference(u"my org", [1, 2, 3, 4]), + u"thing" + ) + ] + ) + ]), + x509.CertificatePolicies([ + x509.PolicyInformation( + x509.ObjectIdentifier("2.16.840.1.12345.1.2.3.4.1"), + [ + u"http://example.com/cps", + x509.UserNotice( + x509.NoticeReference(u"UTF8\u2122'", [1, 2, 3, 4]), + u"We heart UTF8!\u2122" + ) + ] + ) + ]), + x509.CertificatePolicies([ + x509.PolicyInformation( + x509.ObjectIdentifier("2.16.840.1.12345.1.2.3.4.1"), + [x509.UserNotice(None, u"thing")] + ) + ]), + x509.CertificatePolicies([ + x509.PolicyInformation( + x509.ObjectIdentifier("2.16.840.1.12345.1.2.3.4.1"), + [ + x509.UserNotice( + x509.NoticeReference(u"my org", [1, 2, 3, 4]), + None + ) + ] + ) + ]) + ] + ) + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_certificate_policies(self, cp, backend): + issuer_private_key = RSA_KEY_2048.private_key(backend) + subject_private_key = RSA_KEY_2048.private_key(backend) + + not_valid_before = datetime.datetime(2002, 1, 1, 12, 1) + not_valid_after = datetime.datetime(2030, 12, 31, 8, 30) + + cert = x509.CertificateBuilder().subject_name( + x509.Name([x509.NameAttribute(x509.OID_COUNTRY_NAME, u'US')]) + ).issuer_name( + x509.Name([x509.NameAttribute(x509.OID_COUNTRY_NAME, u'US')]) + ).not_valid_before( + not_valid_before + ).not_valid_after( + not_valid_after + ).public_key( + subject_private_key.public_key() + ).serial_number( + 123 + ).add_extension( + cp, critical=False + ).sign(issuer_private_key, hashes.SHA256(), backend) + + ext = cert.extensions.get_extension_for_oid( + x509.OID_CERTIFICATE_POLICIES + ) + assert ext.value == cp + + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_issuer_alt_name(self, backend): + issuer_private_key = RSA_KEY_2048.private_key(backend) + subject_private_key = RSA_KEY_2048.private_key(backend) + + not_valid_before = datetime.datetime(2002, 1, 1, 12, 1) + not_valid_after = datetime.datetime(2030, 12, 31, 8, 30) + + cert = x509.CertificateBuilder().subject_name( + x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')]) + ).issuer_name( + x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')]) + ).not_valid_before( + not_valid_before + ).not_valid_after( + not_valid_after + ).public_key( + subject_private_key.public_key() + ).serial_number( + 123 + ).add_extension( + x509.IssuerAlternativeName([ + x509.DNSName(b"myissuer"), + x509.RFC822Name(u"email@domain.com"), + ]), critical=False + ).sign(issuer_private_key, hashes.SHA256(), backend) + + ext = cert.extensions.get_extension_for_oid( + ExtensionOID.ISSUER_ALTERNATIVE_NAME + ) + assert ext.critical is False + assert ext.value == x509.IssuerAlternativeName([ + x509.DNSName(b"myissuer"), + x509.RFC822Name(u"email@domain.com"), + ]) + + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_extended_key_usage(self, backend): + issuer_private_key = RSA_KEY_2048.private_key(backend) + subject_private_key = RSA_KEY_2048.private_key(backend) + + not_valid_before = datetime.datetime(2002, 1, 1, 12, 1) + not_valid_after = datetime.datetime(2030, 12, 31, 8, 30) + + cert = x509.CertificateBuilder().subject_name( + x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')]) + ).issuer_name( + x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')]) + ).not_valid_before( + not_valid_before + ).not_valid_after( + not_valid_after + ).public_key( + subject_private_key.public_key() + ).serial_number( + 123 + ).add_extension( + x509.ExtendedKeyUsage([ + ExtendedKeyUsageOID.CLIENT_AUTH, + ExtendedKeyUsageOID.SERVER_AUTH, + ExtendedKeyUsageOID.CODE_SIGNING, + ]), critical=False + ).sign(issuer_private_key, hashes.SHA256(), backend) + + eku = cert.extensions.get_extension_for_oid( + ExtensionOID.EXTENDED_KEY_USAGE + ) + assert eku.critical is False + assert eku.value == x509.ExtendedKeyUsage([ + ExtendedKeyUsageOID.CLIENT_AUTH, + ExtendedKeyUsageOID.SERVER_AUTH, + ExtendedKeyUsageOID.CODE_SIGNING, + ]) + + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_inhibit_any_policy(self, backend): + issuer_private_key = RSA_KEY_2048.private_key(backend) + subject_private_key = RSA_KEY_2048.private_key(backend) + + not_valid_before = datetime.datetime(2002, 1, 1, 12, 1) + not_valid_after = datetime.datetime(2030, 12, 31, 8, 30) + + cert = x509.CertificateBuilder().subject_name( + x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')]) + ).issuer_name( + x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')]) + ).not_valid_before( + not_valid_before + ).not_valid_after( + not_valid_after + ).public_key( + subject_private_key.public_key() + ).serial_number( + 123 + ).add_extension( + x509.InhibitAnyPolicy(3), critical=False + ).sign(issuer_private_key, hashes.SHA256(), backend) + + ext = cert.extensions.get_extension_for_oid( + ExtensionOID.INHIBIT_ANY_POLICY + ) + assert ext.value == x509.InhibitAnyPolicy(3) + + @pytest.mark.parametrize( + "pc", + [ + x509.PolicyConstraints( + require_explicit_policy=None, + inhibit_policy_mapping=1 + ), + x509.PolicyConstraints( + require_explicit_policy=3, + inhibit_policy_mapping=1 + ), + x509.PolicyConstraints( + require_explicit_policy=0, + inhibit_policy_mapping=None + ), + ] + ) + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_policy_constraints(self, backend, pc): + issuer_private_key = RSA_KEY_2048.private_key(backend) + subject_private_key = RSA_KEY_2048.private_key(backend) + + not_valid_before = datetime.datetime(2002, 1, 1, 12, 1) + not_valid_after = datetime.datetime(2030, 12, 31, 8, 30) + + cert = x509.CertificateBuilder().subject_name( + x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')]) + ).issuer_name( + x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')]) + ).not_valid_before( + not_valid_before + ).not_valid_after( + not_valid_after + ).public_key( + subject_private_key.public_key() + ).serial_number( + 123 + ).add_extension( + pc, critical=False + ).sign(issuer_private_key, hashes.SHA256(), backend) + + ext = cert.extensions.get_extension_for_class( + x509.PolicyConstraints + ) + assert ext.critical is False + assert ext.value == pc + + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + @pytest.mark.parametrize( + "nc", + [ + x509.NameConstraints( + permitted_subtrees=[ + x509.IPAddress(ipaddress.IPv4Network(u"192.168.0.0/24")), + x509.IPAddress(ipaddress.IPv4Network(u"192.168.0.0/29")), + x509.IPAddress(ipaddress.IPv4Network(u"127.0.0.1/32")), + x509.IPAddress(ipaddress.IPv4Network(u"8.0.0.0/8")), + x509.IPAddress(ipaddress.IPv4Network(u"0.0.0.0/0")), + x509.IPAddress( + ipaddress.IPv6Network(u"FF:0:0:0:0:0:0:0/96") + ), + x509.IPAddress( + ipaddress.IPv6Network(u"FF:FF:0:0:0:0:0:0/128") + ), + ], + excluded_subtrees=[x509.DNSName(b"name.local")] + ), + x509.NameConstraints( + permitted_subtrees=[ + x509.IPAddress(ipaddress.IPv4Network(u"0.0.0.0/0")), + ], + excluded_subtrees=None + ), + x509.NameConstraints( + permitted_subtrees=None, + excluded_subtrees=[x509.DNSName(b"name.local")] + ), + ] + ) + def test_name_constraints(self, nc, backend): + issuer_private_key = RSA_KEY_2048.private_key(backend) + subject_private_key = RSA_KEY_2048.private_key(backend) + + not_valid_before = datetime.datetime(2002, 1, 1, 12, 1) + not_valid_after = datetime.datetime(2030, 12, 31, 8, 30) + + cert = x509.CertificateBuilder().subject_name( + x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')]) + ).issuer_name( + x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')]) + ).not_valid_before( + not_valid_before + ).not_valid_after( + not_valid_after + ).public_key( + subject_private_key.public_key() + ).serial_number( + 123 + ).add_extension( + nc, critical=False + ).sign(issuer_private_key, hashes.SHA256(), backend) + + ext = cert.extensions.get_extension_for_oid( + ExtensionOID.NAME_CONSTRAINTS + ) + assert ext.value == nc + + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_key_usage(self, backend): + issuer_private_key = RSA_KEY_2048.private_key(backend) + subject_private_key = RSA_KEY_2048.private_key(backend) + + not_valid_before = datetime.datetime(2002, 1, 1, 12, 1) + not_valid_after = datetime.datetime(2030, 12, 31, 8, 30) + + cert = x509.CertificateBuilder().subject_name( + x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')]) + ).issuer_name( + x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')]) + ).not_valid_before( + not_valid_before + ).not_valid_after( + not_valid_after + ).public_key( + subject_private_key.public_key() + ).serial_number( + 123 + ).add_extension( + x509.KeyUsage( + digital_signature=True, + content_commitment=True, + key_encipherment=False, + data_encipherment=False, + key_agreement=False, + key_cert_sign=True, + crl_sign=False, + encipher_only=False, + decipher_only=False + ), + critical=False + ).sign(issuer_private_key, hashes.SHA256(), backend) + + ext = cert.extensions.get_extension_for_oid(ExtensionOID.KEY_USAGE) + assert ext.critical is False + assert ext.value == x509.KeyUsage( + digital_signature=True, + content_commitment=True, + key_encipherment=False, + data_encipherment=False, + key_agreement=False, + key_cert_sign=True, + crl_sign=False, + encipher_only=False, + decipher_only=False + ) + + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_build_ca_request_with_path_length_none(self, backend): + private_key = RSA_KEY_2048.private_key(backend) + + request = x509.CertificateSigningRequestBuilder().subject_name( + x509.Name([ + x509.NameAttribute(NameOID.ORGANIZATION_NAME, + u'PyCA'), + ]) + ).add_extension( + x509.BasicConstraints(ca=True, path_length=None), critical=True + ).sign(private_key, hashes.SHA1(), backend) + + loaded_request = x509.load_pem_x509_csr( + request.public_bytes(encoding=serialization.Encoding.PEM), backend + ) + subject = loaded_request.subject + assert isinstance(subject, x509.Name) + basic_constraints = request.extensions.get_extension_for_oid( + ExtensionOID.BASIC_CONSTRAINTS + ) + assert basic_constraints.value.path_length is None + + @pytest.mark.parametrize( + "unrecognized", [ + x509.UnrecognizedExtension( + x509.ObjectIdentifier("1.2.3.4.5"), + b"abcdef", + ) + ] + ) + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_unrecognized_extension(self, backend, unrecognized): + private_key = RSA_KEY_2048.private_key(backend) + + cert = x509.CertificateBuilder().subject_name( + x509.Name([x509.NameAttribute(x509.OID_COUNTRY_NAME, u'US')]) + ).issuer_name( + x509.Name([x509.NameAttribute(x509.OID_COUNTRY_NAME, u'US')]) + ).not_valid_before( + datetime.datetime(2002, 1, 1, 12, 1) + ).not_valid_after( + datetime.datetime(2030, 12, 31, 8, 30) + ).public_key( + private_key.public_key() + ).serial_number( + 123 + ).add_extension( + unrecognized, critical=False + ).sign(private_key, hashes.SHA256(), backend) + + ext = cert.extensions.get_extension_for_oid(unrecognized.oid) + + assert ext.value == unrecognized + + +@pytest.mark.requires_backend_interface(interface=X509Backend) +class TestCertificateSigningRequestBuilder(object): + @pytest.mark.requires_backend_interface(interface=RSABackend) + def test_sign_invalid_hash_algorithm(self, backend): + private_key = RSA_KEY_2048.private_key(backend) + + builder = x509.CertificateSigningRequestBuilder().subject_name( + x509.Name([]) + ) + with pytest.raises(TypeError): + builder.sign(private_key, 'NotAHash', backend) + + @pytest.mark.requires_backend_interface(interface=RSABackend) + def test_sign_rsa_with_md5(self, backend): + private_key = RSA_KEY_2048.private_key(backend) + + builder = x509.CertificateSigningRequestBuilder().subject_name( + x509.Name([ + x509.NameAttribute(NameOID.ORGANIZATION_NAME, u'PyCA'), + ]) + ) + request = builder.sign(private_key, hashes.MD5(), backend) + assert isinstance(request.signature_hash_algorithm, hashes.MD5) + + @pytest.mark.requires_backend_interface(interface=DSABackend) + def test_sign_dsa_with_md5(self, backend): + private_key = DSA_KEY_2048.private_key(backend) + builder = x509.CertificateSigningRequestBuilder().subject_name( + x509.Name([ + x509.NameAttribute(NameOID.ORGANIZATION_NAME, u'PyCA'), + ]) + ) + with pytest.raises(ValueError): + builder.sign(private_key, hashes.MD5(), backend) + + @pytest.mark.requires_backend_interface(interface=EllipticCurveBackend) + def test_sign_ec_with_md5(self, backend): + _skip_curve_unsupported(backend, ec.SECP256R1()) + private_key = EC_KEY_SECP256R1.private_key(backend) + builder = x509.CertificateSigningRequestBuilder().subject_name( + x509.Name([ + x509.NameAttribute(NameOID.ORGANIZATION_NAME, u'PyCA'), + ]) + ) + with pytest.raises(ValueError): + builder.sign(private_key, hashes.MD5(), backend) + + @pytest.mark.requires_backend_interface(interface=RSABackend) + def test_no_subject_name(self, backend): + private_key = RSA_KEY_2048.private_key(backend) + + builder = x509.CertificateSigningRequestBuilder() + with pytest.raises(ValueError): + builder.sign(private_key, hashes.SHA256(), backend) + + @pytest.mark.requires_backend_interface(interface=RSABackend) + def test_build_ca_request_with_rsa(self, backend): + private_key = RSA_KEY_2048.private_key(backend) + + request = x509.CertificateSigningRequestBuilder().subject_name( + x509.Name([ + x509.NameAttribute(NameOID.ORGANIZATION_NAME, u'PyCA'), + ]) + ).add_extension( + x509.BasicConstraints(ca=True, path_length=2), critical=True + ).sign(private_key, hashes.SHA1(), backend) + + assert isinstance(request.signature_hash_algorithm, hashes.SHA1) + public_key = request.public_key() + assert isinstance(public_key, rsa.RSAPublicKey) + subject = request.subject + assert isinstance(subject, x509.Name) + assert list(subject) == [ + x509.NameAttribute(NameOID.ORGANIZATION_NAME, u'PyCA'), + ] + basic_constraints = request.extensions.get_extension_for_oid( + ExtensionOID.BASIC_CONSTRAINTS + ) + assert basic_constraints.value.ca is True + assert basic_constraints.value.path_length == 2 + + @pytest.mark.requires_backend_interface(interface=RSABackend) + def test_build_ca_request_with_unicode(self, backend): + private_key = RSA_KEY_2048.private_key(backend) + + request = x509.CertificateSigningRequestBuilder().subject_name( + x509.Name([ + x509.NameAttribute(NameOID.ORGANIZATION_NAME, + u'PyCA\U0001f37a'), + ]) + ).add_extension( + x509.BasicConstraints(ca=True, path_length=2), critical=True + ).sign(private_key, hashes.SHA1(), backend) + + loaded_request = x509.load_pem_x509_csr( + request.public_bytes(encoding=serialization.Encoding.PEM), backend + ) + subject = loaded_request.subject + assert isinstance(subject, x509.Name) + assert list(subject) == [ + x509.NameAttribute(NameOID.ORGANIZATION_NAME, u'PyCA\U0001f37a'), + ] + + @pytest.mark.requires_backend_interface(interface=RSABackend) + def test_build_ca_request_with_multivalue_rdns(self, backend): + private_key = RSA_KEY_2048.private_key(backend) + subject = x509.Name([ + x509.RelativeDistinguishedName([ + x509.NameAttribute(NameOID.TITLE, u'Test'), + x509.NameAttribute(NameOID.COMMON_NAME, u'Multivalue'), + x509.NameAttribute(NameOID.SURNAME, u'RDNs'), + ]), + x509.RelativeDistinguishedName([ + x509.NameAttribute(NameOID.ORGANIZATION_NAME, u'PyCA') + ]), + ]) + + request = x509.CertificateSigningRequestBuilder().subject_name( + subject + ).sign(private_key, hashes.SHA1(), backend) + + loaded_request = x509.load_pem_x509_csr( + request.public_bytes(encoding=serialization.Encoding.PEM), backend + ) + assert isinstance(loaded_request.subject, x509.Name) + assert loaded_request.subject == subject + + @pytest.mark.requires_backend_interface(interface=RSABackend) + def test_build_nonca_request_with_rsa(self, backend): + private_key = RSA_KEY_2048.private_key(backend) + + request = x509.CertificateSigningRequestBuilder().subject_name( + x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ]) + ).add_extension( + x509.BasicConstraints(ca=False, path_length=None), critical=True, + ).sign(private_key, hashes.SHA1(), backend) + + assert isinstance(request.signature_hash_algorithm, hashes.SHA1) + public_key = request.public_key() + assert isinstance(public_key, rsa.RSAPublicKey) + subject = request.subject + assert isinstance(subject, x509.Name) + assert list(subject) == [ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ] + basic_constraints = request.extensions.get_extension_for_oid( + ExtensionOID.BASIC_CONSTRAINTS + ) + assert basic_constraints.value.ca is False + assert basic_constraints.value.path_length is None + + @pytest.mark.requires_backend_interface(interface=EllipticCurveBackend) + def test_build_ca_request_with_ec(self, backend): + _skip_curve_unsupported(backend, ec.SECP256R1()) + private_key = ec.generate_private_key(ec.SECP256R1(), backend) + + request = x509.CertificateSigningRequestBuilder().subject_name( + x509.Name([ + x509.NameAttribute(NameOID.STATE_OR_PROVINCE_NAME, u'Texas'), + ]) + ).add_extension( + x509.BasicConstraints(ca=True, path_length=2), critical=True + ).sign(private_key, hashes.SHA1(), backend) + + assert isinstance(request.signature_hash_algorithm, hashes.SHA1) + public_key = request.public_key() + assert isinstance(public_key, ec.EllipticCurvePublicKey) + subject = request.subject + assert isinstance(subject, x509.Name) + assert list(subject) == [ + x509.NameAttribute(NameOID.STATE_OR_PROVINCE_NAME, u'Texas'), + ] + basic_constraints = request.extensions.get_extension_for_oid( + ExtensionOID.BASIC_CONSTRAINTS + ) + assert basic_constraints.value.ca is True + assert basic_constraints.value.path_length == 2 + + @pytest.mark.requires_backend_interface(interface=DSABackend) + def test_build_ca_request_with_dsa(self, backend): + private_key = DSA_KEY_2048.private_key(backend) + + request = x509.CertificateSigningRequestBuilder().subject_name( + x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ]) + ).add_extension( + x509.BasicConstraints(ca=True, path_length=2), critical=True + ).sign(private_key, hashes.SHA1(), backend) + + assert isinstance(request.signature_hash_algorithm, hashes.SHA1) + public_key = request.public_key() + assert isinstance(public_key, dsa.DSAPublicKey) + subject = request.subject + assert isinstance(subject, x509.Name) + assert list(subject) == [ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ] + basic_constraints = request.extensions.get_extension_for_oid( + ExtensionOID.BASIC_CONSTRAINTS + ) + assert basic_constraints.value.ca is True + assert basic_constraints.value.path_length == 2 + + def test_add_duplicate_extension(self): + builder = x509.CertificateSigningRequestBuilder().add_extension( + x509.BasicConstraints(True, 2), critical=True, + ) + with pytest.raises(ValueError): + builder.add_extension( + x509.BasicConstraints(True, 2), critical=True, + ) + + def test_set_invalid_subject(self): + builder = x509.CertificateSigningRequestBuilder() + with pytest.raises(TypeError): + builder.subject_name('NotAName') + + def test_add_invalid_extension_type(self): + builder = x509.CertificateSigningRequestBuilder() + + with pytest.raises(TypeError): + builder.add_extension(object(), False) + + def test_add_unsupported_extension(self, backend): + private_key = RSA_KEY_2048.private_key(backend) + builder = x509.CertificateSigningRequestBuilder() + builder = builder.subject_name( + x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ]) + ).add_extension( + x509.SubjectAlternativeName([x509.DNSName(b"cryptography.io")]), + critical=False, + ).add_extension( + DummyExtension(), False + ) + with pytest.raises(NotImplementedError): + builder.sign(private_key, hashes.SHA256(), backend) + + def test_key_usage(self, backend): + private_key = RSA_KEY_2048.private_key(backend) + builder = x509.CertificateSigningRequestBuilder() + request = builder.subject_name( + x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ]) + ).add_extension( + x509.KeyUsage( + digital_signature=True, + content_commitment=True, + key_encipherment=False, + data_encipherment=False, + key_agreement=False, + key_cert_sign=True, + crl_sign=False, + encipher_only=False, + decipher_only=False + ), + critical=False + ).sign(private_key, hashes.SHA256(), backend) + assert len(request.extensions) == 1 + ext = request.extensions.get_extension_for_oid(ExtensionOID.KEY_USAGE) + assert ext.critical is False + assert ext.value == x509.KeyUsage( + digital_signature=True, + content_commitment=True, + key_encipherment=False, + data_encipherment=False, + key_agreement=False, + key_cert_sign=True, + crl_sign=False, + encipher_only=False, + decipher_only=False + ) + + def test_key_usage_key_agreement_bit(self, backend): + private_key = RSA_KEY_2048.private_key(backend) + builder = x509.CertificateSigningRequestBuilder() + request = builder.subject_name( + x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ]) + ).add_extension( + x509.KeyUsage( + digital_signature=False, + content_commitment=False, + key_encipherment=False, + data_encipherment=False, + key_agreement=True, + key_cert_sign=True, + crl_sign=False, + encipher_only=False, + decipher_only=True + ), + critical=False + ).sign(private_key, hashes.SHA256(), backend) + assert len(request.extensions) == 1 + ext = request.extensions.get_extension_for_oid(ExtensionOID.KEY_USAGE) + assert ext.critical is False + assert ext.value == x509.KeyUsage( + digital_signature=False, + content_commitment=False, + key_encipherment=False, + data_encipherment=False, + key_agreement=True, + key_cert_sign=True, + crl_sign=False, + encipher_only=False, + decipher_only=True + ) + + def test_add_two_extensions(self, backend): + private_key = RSA_KEY_2048.private_key(backend) + builder = x509.CertificateSigningRequestBuilder() + request = builder.subject_name( + x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')]) + ).add_extension( + x509.SubjectAlternativeName([x509.DNSName(b"cryptography.io")]), + critical=False, + ).add_extension( + x509.BasicConstraints(ca=True, path_length=2), critical=True + ).sign(private_key, hashes.SHA1(), backend) + + assert isinstance(request.signature_hash_algorithm, hashes.SHA1) + public_key = request.public_key() + assert isinstance(public_key, rsa.RSAPublicKey) + basic_constraints = request.extensions.get_extension_for_oid( + ExtensionOID.BASIC_CONSTRAINTS + ) + assert basic_constraints.value.ca is True + assert basic_constraints.value.path_length == 2 + ext = request.extensions.get_extension_for_oid( + ExtensionOID.SUBJECT_ALTERNATIVE_NAME + ) + assert list(ext.value) == [x509.DNSName(b"cryptography.io")] + + def test_set_subject_twice(self): + builder = x509.CertificateSigningRequestBuilder() + builder = builder.subject_name( + x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ]) + ) + with pytest.raises(ValueError): + builder.subject_name( + x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ]) + ) + + def test_subject_alt_names(self, backend): + private_key = RSA_KEY_2048.private_key(backend) + + san = x509.SubjectAlternativeName([ + x509.DNSName(b"example.com"), + x509.DNSName(b"*.example.com"), + x509.RegisteredID(x509.ObjectIdentifier("1.2.3.4.5.6.7")), + x509.DirectoryName(x509.Name([ + x509.NameAttribute(NameOID.COMMON_NAME, u'PyCA'), + x509.NameAttribute( + NameOID.ORGANIZATION_NAME, u'We heart UTF8!\u2122' + ) + ])), + x509.IPAddress(ipaddress.ip_address(u"127.0.0.1")), + x509.IPAddress(ipaddress.ip_address(u"ff::")), + x509.OtherName( + type_id=x509.ObjectIdentifier("1.2.3.3.3.3"), + value=b"0\x03\x02\x01\x05" + ), + x509.RFC822Name(u"test@example.com"), + x509.RFC822Name(u"email"), + x509.RFC822Name(u"email@em\xe5\xefl.com"), + x509.UniformResourceIdentifier( + u"https://\u043f\u044b\u043a\u0430.cryptography" + ), + x509.UniformResourceIdentifier( + u"gopher://cryptography:70/some/path" + ), + ]) + + csr = x509.CertificateSigningRequestBuilder().subject_name( + x509.Name([ + x509.NameAttribute(NameOID.COMMON_NAME, u"SAN"), + ]) + ).add_extension( + san, + critical=False, + ).sign(private_key, hashes.SHA256(), backend) + + assert len(csr.extensions) == 1 + ext = csr.extensions.get_extension_for_oid( + ExtensionOID.SUBJECT_ALTERNATIVE_NAME + ) + assert not ext.critical + assert ext.oid == ExtensionOID.SUBJECT_ALTERNATIVE_NAME + assert ext.value == san + + def test_invalid_asn1_othername(self, backend): + private_key = RSA_KEY_2048.private_key(backend) + + builder = x509.CertificateSigningRequestBuilder().subject_name( + x509.Name([ + x509.NameAttribute(NameOID.COMMON_NAME, u"SAN"), + ]) + ).add_extension( + x509.SubjectAlternativeName([ + x509.OtherName( + type_id=x509.ObjectIdentifier("1.2.3.3.3.3"), + value=b"\x01\x02\x01\x05" + ), + ]), + critical=False, + ) + with pytest.raises(ValueError): + builder.sign(private_key, hashes.SHA256(), backend) + + def test_subject_alt_name_unsupported_general_name(self, backend): + private_key = RSA_KEY_2048.private_key(backend) + + builder = x509.CertificateSigningRequestBuilder().subject_name( + x509.Name([ + x509.NameAttribute(NameOID.COMMON_NAME, u"SAN"), + ]) + ).add_extension( + x509.SubjectAlternativeName([FakeGeneralName("")]), + critical=False, + ) + + with pytest.raises(ValueError): + builder.sign(private_key, hashes.SHA256(), backend) + + def test_extended_key_usage(self, backend): + private_key = RSA_KEY_2048.private_key(backend) + eku = x509.ExtendedKeyUsage([ + ExtendedKeyUsageOID.CLIENT_AUTH, + ExtendedKeyUsageOID.SERVER_AUTH, + ExtendedKeyUsageOID.CODE_SIGNING, + ]) + builder = x509.CertificateSigningRequestBuilder() + request = builder.subject_name( + x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')]) + ).add_extension( + eku, critical=False + ).sign(private_key, hashes.SHA256(), backend) + + ext = request.extensions.get_extension_for_oid( + ExtensionOID.EXTENDED_KEY_USAGE + ) + assert ext.critical is False + assert ext.value == eku + + @pytest.mark.requires_backend_interface(interface=RSABackend) + def test_rsa_key_too_small(self, backend): + private_key = rsa.generate_private_key(65537, 512, backend) + builder = x509.CertificateSigningRequestBuilder() + builder = builder.subject_name( + x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')]) + ) + + with pytest.raises(ValueError) as exc: + builder.sign(private_key, hashes.SHA512(), backend) + + assert str(exc.value) == "Digest too big for RSA key" + + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_build_cert_with_aia(self, backend): + issuer_private_key = RSA_KEY_2048.private_key(backend) + subject_private_key = RSA_KEY_2048.private_key(backend) + + not_valid_before = datetime.datetime(2002, 1, 1, 12, 1) + not_valid_after = datetime.datetime(2030, 12, 31, 8, 30) + + aia = x509.AuthorityInformationAccess([ + x509.AccessDescription( + AuthorityInformationAccessOID.OCSP, + x509.UniformResourceIdentifier(b"http://ocsp.domain.com") + ), + x509.AccessDescription( + AuthorityInformationAccessOID.CA_ISSUERS, + x509.UniformResourceIdentifier(b"http://domain.com/ca.crt") + ) + ]) + + builder = x509.CertificateBuilder().serial_number( + 777 + ).issuer_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).subject_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).public_key( + subject_private_key.public_key() + ).add_extension( + aia, critical=False + ).not_valid_before( + not_valid_before + ).not_valid_after( + not_valid_after + ) + + cert = builder.sign(issuer_private_key, hashes.SHA1(), backend) + + ext = cert.extensions.get_extension_for_oid( + ExtensionOID.AUTHORITY_INFORMATION_ACCESS + ) + assert ext.value == aia + + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_build_cert_with_ski(self, backend): + issuer_private_key = RSA_KEY_2048.private_key(backend) + subject_private_key = RSA_KEY_2048.private_key(backend) + + not_valid_before = datetime.datetime(2002, 1, 1, 12, 1) + not_valid_after = datetime.datetime(2030, 12, 31, 8, 30) + + ski = x509.SubjectKeyIdentifier.from_public_key( + subject_private_key.public_key() + ) + + builder = x509.CertificateBuilder().serial_number( + 777 + ).issuer_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).subject_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).public_key( + subject_private_key.public_key() + ).add_extension( + ski, critical=False + ).not_valid_before( + not_valid_before + ).not_valid_after( + not_valid_after + ) + + cert = builder.sign(issuer_private_key, hashes.SHA1(), backend) + + ext = cert.extensions.get_extension_for_oid( + ExtensionOID.SUBJECT_KEY_IDENTIFIER + ) + assert ext.value == ski + + @pytest.mark.parametrize( + "aki", + [ + x509.AuthorityKeyIdentifier( + b"\xc3\x9c\xf3\xfc\xd3F\x084\xbb\xceF\x7f\xa0|[\xf3\xe2\x08" + b"\xcbY", + None, + None + ), + x509.AuthorityKeyIdentifier( + b"\xc3\x9c\xf3\xfc\xd3F\x084\xbb\xceF\x7f\xa0|[\xf3\xe2\x08" + b"\xcbY", + [ + x509.DirectoryName( + x509.Name([ + x509.NameAttribute( + NameOID.ORGANIZATION_NAME, u"PyCA" + ), + x509.NameAttribute( + NameOID.COMMON_NAME, u"cryptography CA" + ) + ]) + ) + ], + 333 + ), + x509.AuthorityKeyIdentifier( + None, + [ + x509.DirectoryName( + x509.Name([ + x509.NameAttribute( + NameOID.ORGANIZATION_NAME, u"PyCA" + ), + x509.NameAttribute( + NameOID.COMMON_NAME, u"cryptography CA" + ) + ]) + ) + ], + 333 + ), + ] + ) + @pytest.mark.requires_backend_interface(interface=RSABackend) + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_build_cert_with_aki(self, aki, backend): + issuer_private_key = RSA_KEY_2048.private_key(backend) + subject_private_key = RSA_KEY_2048.private_key(backend) + + not_valid_before = datetime.datetime(2002, 1, 1, 12, 1) + not_valid_after = datetime.datetime(2030, 12, 31, 8, 30) + + builder = x509.CertificateBuilder().serial_number( + 777 + ).issuer_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).subject_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).public_key( + subject_private_key.public_key() + ).add_extension( + aki, critical=False + ).not_valid_before( + not_valid_before + ).not_valid_after( + not_valid_after + ) + + cert = builder.sign(issuer_private_key, hashes.SHA256(), backend) + + ext = cert.extensions.get_extension_for_oid( + ExtensionOID.AUTHORITY_KEY_IDENTIFIER + ) + assert ext.value == aki + + def test_ocsp_nocheck(self, backend): + issuer_private_key = RSA_KEY_2048.private_key(backend) + subject_private_key = RSA_KEY_2048.private_key(backend) + + not_valid_before = datetime.datetime(2002, 1, 1, 12, 1) + not_valid_after = datetime.datetime(2030, 12, 31, 8, 30) + + builder = x509.CertificateBuilder().serial_number( + 777 + ).issuer_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).subject_name(x509.Name([ + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + ])).public_key( + subject_private_key.public_key() + ).add_extension( + x509.OCSPNoCheck(), critical=False + ).not_valid_before( + not_valid_before + ).not_valid_after( + not_valid_after + ) + + cert = builder.sign(issuer_private_key, hashes.SHA256(), backend) + + ext = cert.extensions.get_extension_for_oid( + ExtensionOID.OCSP_NO_CHECK + ) + assert isinstance(ext.value, x509.OCSPNoCheck) + + +@pytest.mark.requires_backend_interface(interface=DSABackend) +@pytest.mark.requires_backend_interface(interface=X509Backend) +class TestDSACertificate(object): + def test_load_dsa_cert(self, backend): + cert = _load_cert( + os.path.join("x509", "custom", "dsa_selfsigned_ca.pem"), + x509.load_pem_x509_certificate, + backend + ) + assert isinstance(cert.signature_hash_algorithm, hashes.SHA1) + public_key = cert.public_key() + assert isinstance(public_key, dsa.DSAPublicKey) + num = public_key.public_numbers() + assert num.y == int( + "4c08bfe5f2d76649c80acf7d431f6ae2124b217abc8c9f6aca776ddfa94" + "53b6656f13e543684cd5f6431a314377d2abfa068b7080cb8ddc065afc2" + "dea559f0b584c97a2b235b9b69b46bc6de1aed422a6f341832618bcaae2" + "198aba388099dafb05ff0b5efecb3b0ae169a62e1c72022af50ae68af3b" + "033c18e6eec1f7df4692c456ccafb79cc7e08da0a5786e9816ceda651d6" + "1b4bb7b81c2783da97cea62df67af5e85991fdc13aff10fc60e06586386" + "b96bb78d65750f542f86951e05a6d81baadbcd35a2e5cad4119923ae6a2" + "002091a3d17017f93c52970113cdc119970b9074ca506eac91c3dd37632" + "5df4af6b3911ef267d26623a5a1c5df4a6d13f1c", 16 + ) + assert num.parameter_numbers.g == int( + "4b7ced71dc353965ecc10d441a9a06fc24943a32d66429dd5ef44d43e67" + "d789d99770aec32c0415dc92970880872da45fef8dd1e115a3e4801387b" + "a6d755861f062fd3b6e9ea8e2641152339b828315b1528ee6c7b79458d2" + "1f3db973f6fc303f9397174c2799dd2351282aa2d8842c357a73495bbaa" + "c4932786414c55e60d73169f5761036fba29e9eebfb049f8a3b1b7cee6f" + "3fbfa136205f130bee2cf5b9c38dc1095d4006f2e73335c07352c64130a" + "1ab2b89f13b48f628d3cc3868beece9bb7beade9f830eacc6fa241425c0" + "b3fcc0df416a0c89f7bf35668d765ec95cdcfbe9caff49cfc156c668c76" + "fa6247676a6d3ac945844a083509c6a1b436baca", 16 + ) + assert num.parameter_numbers.p == int( + "bfade6048e373cd4e48b677e878c8e5b08c02102ae04eb2cb5c46a523a3" + "af1c73d16b24f34a4964781ae7e50500e21777754a670bd19a7420d6330" + "84e5556e33ca2c0e7d547ea5f46a07a01bf8669ae3bdec042d9b2ae5e6e" + "cf49f00ba9dac99ab6eff140d2cedf722ee62c2f9736857971444c25d0a" + "33d2017dc36d682a1054fe2a9428dda355a851ce6e6d61e03e419fd4ca4" + "e703313743d86caa885930f62ed5bf342d8165627681e9cc3244ba72aa2" + "2148400a6bbe80154e855d042c9dc2a3405f1e517be9dea50562f56da93" + "f6085f844a7e705c1f043e65751c583b80d29103e590ccb26efdaa0893d" + "833e36468f3907cfca788a3cb790f0341c8a31bf", 16 + ) + assert num.parameter_numbers.q == int( + "822ff5d234e073b901cf5941f58e1f538e71d40d", 16 + ) + + def test_signature(self, backend): + cert = _load_cert( + os.path.join("x509", "custom", "dsa_selfsigned_ca.pem"), + x509.load_pem_x509_certificate, + backend + ) + assert cert.signature == binascii.unhexlify( + b"302c021425c4a84a936ab311ee017d3cbd9a3c650bb3ae4a02145d30c64b4326" + b"86bdf925716b4ed059184396bcce" + ) + r, s = decode_dss_signature(cert.signature) + assert r == 215618264820276283222494627481362273536404860490 + assert s == 532023851299196869156027211159466197586787351758 + + def test_tbs_certificate_bytes(self, backend): + cert = _load_cert( + os.path.join("x509", "custom", "dsa_selfsigned_ca.pem"), + x509.load_pem_x509_certificate, + backend + ) + assert cert.tbs_certificate_bytes == binascii.unhexlify( + b"3082051aa003020102020900a37352e0b2142f86300906072a8648ce3804033" + b"067310b3009060355040613025553310e300c06035504081305546578617331" + b"0f300d0603550407130641757374696e3121301f060355040a1318496e74657" + b"26e6574205769646769747320507479204c7464311430120603550403130b50" + b"79434120445341204341301e170d3134313132373035313431375a170d31343" + b"13232373035313431375a3067310b3009060355040613025553310e300c0603" + b"55040813055465786173310f300d0603550407130641757374696e3121301f0" + b"60355040a1318496e7465726e6574205769646769747320507479204c746431" + b"1430120603550403130b50794341204453412043413082033a3082022d06072" + b"a8648ce380401308202200282010100bfade6048e373cd4e48b677e878c8e5b" + b"08c02102ae04eb2cb5c46a523a3af1c73d16b24f34a4964781ae7e50500e217" + b"77754a670bd19a7420d633084e5556e33ca2c0e7d547ea5f46a07a01bf8669a" + b"e3bdec042d9b2ae5e6ecf49f00ba9dac99ab6eff140d2cedf722ee62c2f9736" + b"857971444c25d0a33d2017dc36d682a1054fe2a9428dda355a851ce6e6d61e0" + b"3e419fd4ca4e703313743d86caa885930f62ed5bf342d8165627681e9cc3244" + b"ba72aa22148400a6bbe80154e855d042c9dc2a3405f1e517be9dea50562f56d" + b"a93f6085f844a7e705c1f043e65751c583b80d29103e590ccb26efdaa0893d8" + b"33e36468f3907cfca788a3cb790f0341c8a31bf021500822ff5d234e073b901" + b"cf5941f58e1f538e71d40d028201004b7ced71dc353965ecc10d441a9a06fc2" + b"4943a32d66429dd5ef44d43e67d789d99770aec32c0415dc92970880872da45" + b"fef8dd1e115a3e4801387ba6d755861f062fd3b6e9ea8e2641152339b828315" + b"b1528ee6c7b79458d21f3db973f6fc303f9397174c2799dd2351282aa2d8842" + b"c357a73495bbaac4932786414c55e60d73169f5761036fba29e9eebfb049f8a" + b"3b1b7cee6f3fbfa136205f130bee2cf5b9c38dc1095d4006f2e73335c07352c" + b"64130a1ab2b89f13b48f628d3cc3868beece9bb7beade9f830eacc6fa241425" + b"c0b3fcc0df416a0c89f7bf35668d765ec95cdcfbe9caff49cfc156c668c76fa" + b"6247676a6d3ac945844a083509c6a1b436baca0382010500028201004c08bfe" + b"5f2d76649c80acf7d431f6ae2124b217abc8c9f6aca776ddfa9453b6656f13e" + b"543684cd5f6431a314377d2abfa068b7080cb8ddc065afc2dea559f0b584c97" + b"a2b235b9b69b46bc6de1aed422a6f341832618bcaae2198aba388099dafb05f" + b"f0b5efecb3b0ae169a62e1c72022af50ae68af3b033c18e6eec1f7df4692c45" + b"6ccafb79cc7e08da0a5786e9816ceda651d61b4bb7b81c2783da97cea62df67" + b"af5e85991fdc13aff10fc60e06586386b96bb78d65750f542f86951e05a6d81" + b"baadbcd35a2e5cad4119923ae6a2002091a3d17017f93c52970113cdc119970" + b"b9074ca506eac91c3dd376325df4af6b3911ef267d26623a5a1c5df4a6d13f1" + b"ca381cc3081c9301d0603551d0e04160414a4fb887a13fcdeb303bbae9a1dec" + b"a72f125a541b3081990603551d2304819130818e8014a4fb887a13fcdeb303b" + b"bae9a1deca72f125a541ba16ba4693067310b3009060355040613025553310e" + b"300c060355040813055465786173310f300d0603550407130641757374696e3" + b"121301f060355040a1318496e7465726e657420576964676974732050747920" + b"4c7464311430120603550403130b5079434120445341204341820900a37352e" + b"0b2142f86300c0603551d13040530030101ff" + ) + verifier = cert.public_key().verifier( + cert.signature, cert.signature_hash_algorithm + ) + verifier.update(cert.tbs_certificate_bytes) + verifier.verify() + + +@pytest.mark.requires_backend_interface(interface=DSABackend) +@pytest.mark.requires_backend_interface(interface=X509Backend) +class TestDSACertificateRequest(object): + @pytest.mark.parametrize( + ("path", "loader_func"), + [ + [ + os.path.join("x509", "requests", "dsa_sha1.pem"), + x509.load_pem_x509_csr + ], + [ + os.path.join("x509", "requests", "dsa_sha1.der"), + x509.load_der_x509_csr + ], + ] + ) + def test_load_dsa_request(self, path, loader_func, backend): + request = _load_cert(path, loader_func, backend) + assert isinstance(request.signature_hash_algorithm, hashes.SHA1) + public_key = request.public_key() + assert isinstance(public_key, dsa.DSAPublicKey) + subject = request.subject + assert isinstance(subject, x509.Name) + assert list(subject) == [ + x509.NameAttribute(NameOID.COMMON_NAME, u'cryptography.io'), + x509.NameAttribute(NameOID.ORGANIZATION_NAME, u'PyCA'), + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + x509.NameAttribute(NameOID.STATE_OR_PROVINCE_NAME, u'Texas'), + x509.NameAttribute(NameOID.LOCALITY_NAME, u'Austin'), + ] + + def test_signature(self, backend): + request = _load_cert( + os.path.join("x509", "requests", "dsa_sha1.pem"), + x509.load_pem_x509_csr, + backend + ) + assert request.signature == binascii.unhexlify( + b"302c021461d58dc028d0110818a7d817d74235727c4acfdf0214097b52e198e" + b"ce95de17273f0a924df23ce9d8188" + ) + + def test_tbs_certrequest_bytes(self, backend): + request = _load_cert( + os.path.join("x509", "requests", "dsa_sha1.pem"), + x509.load_pem_x509_csr, + backend + ) + assert request.tbs_certrequest_bytes == binascii.unhexlify( + b"3082021802010030573118301606035504030c0f63727970746f677261706879" + b"2e696f310d300b060355040a0c0450794341310b300906035504061302555331" + b"0e300c06035504080c055465786173310f300d06035504070c0641757374696e" + b"308201b63082012b06072a8648ce3804013082011e028181008d7fadbc09e284" + b"aafa69154cea24177004909e519f8b35d685cde5b4ecdc9583e74d370a0f88ad" + b"a98f026f27762fb3d5da7836f986dfcdb3589e5b925bea114defc03ef81dae30" + b"c24bbc6df3d588e93427bba64203d4a5b1687b2b5e3b643d4c614976f89f95a3" + b"8d3e4c89065fba97514c22c50adbbf289163a74b54859b35b7021500835de56b" + b"d07cf7f82e2032fe78949aed117aa2ef0281801f717b5a07782fc2e4e68e311f" + b"ea91a54edd36b86ac634d14f05a68a97eae9d2ef31fb1ef3de42c3d100df9ca6" + b"4f5bdc2aec7bfdfb474cf831fea05853b5e059f2d24980a0ac463f1e818af352" + b"3e3cb79a39d45fa92731897752842469cf8540b01491024eaafbce6018e8a1f4" + b"658c343f4ba7c0b21e5376a21f4beb8491961e038184000281800713f07641f6" + b"369bb5a9545274a2d4c01998367fb371bb9e13436363672ed68f82174c2de05c" + b"8e839bc6de568dd50ba28d8d9d8719423aaec5557df10d773ab22d6d65cbb878" + b"04a697bc8fd965b952f9f7e850edf13c8acdb5d753b6d10e59e0b5732e3c82ba" + b"fa140342bc4a3bba16bd0681c8a6a2dbbb7efe6ce2b8463b170ba000" + ) + verifier = request.public_key().verifier( + request.signature, + request.signature_hash_algorithm + ) + verifier.update(request.tbs_certrequest_bytes) + verifier.verify() + + +@pytest.mark.requires_backend_interface(interface=EllipticCurveBackend) +@pytest.mark.requires_backend_interface(interface=X509Backend) +class TestECDSACertificate(object): + def test_load_ecdsa_cert(self, backend): + _skip_curve_unsupported(backend, ec.SECP384R1()) + cert = _load_cert( + os.path.join("x509", "ecdsa_root.pem"), + x509.load_pem_x509_certificate, + backend + ) + assert isinstance(cert.signature_hash_algorithm, hashes.SHA384) + public_key = cert.public_key() + assert isinstance(public_key, ec.EllipticCurvePublicKey) + num = public_key.public_numbers() + assert num.x == int( + "dda7d9bb8ab80bfb0b7f21d2f0bebe73f3335d1abc34eadec69bbcd095f" + "6f0ccd00bba615b51467e9e2d9fee8e630c17", 16 + ) + assert num.y == int( + "ec0770f5cf842e40839ce83f416d3badd3a4145936789d0343ee10136c7" + "2deae88a7a16bb543ce67dc23ff031ca3e23e", 16 + ) + assert isinstance(num.curve, ec.SECP384R1) + + def test_signature(self, backend): + cert = _load_cert( + os.path.join("x509", "ecdsa_root.pem"), + x509.load_pem_x509_certificate, + backend + ) + assert cert.signature == binascii.unhexlify( + b"3065023100adbcf26c3f124ad12d39c30a099773f488368c8827bbe6888d5085" + b"a763f99e32de66930ff1ccb1098fdd6cabfa6b7fa0023039665bc2648db89e50" + b"dca8d549a2edc7dcd1497f1701b8c8868f4e8c882ba89aa98ac5d100bdf854e2" + b"9ae55b7cb32717" + ) + r, s = decode_dss_signature(cert.signature) + assert r == int( + "adbcf26c3f124ad12d39c30a099773f488368c8827bbe6888d5085a763f99e32" + "de66930ff1ccb1098fdd6cabfa6b7fa0", + 16 + ) + assert s == int( + "39665bc2648db89e50dca8d549a2edc7dcd1497f1701b8c8868f4e8c882ba89a" + "a98ac5d100bdf854e29ae55b7cb32717", + 16 + ) + + def test_tbs_certificate_bytes(self, backend): + _skip_curve_unsupported(backend, ec.SECP384R1()) + cert = _load_cert( + os.path.join("x509", "ecdsa_root.pem"), + x509.load_pem_x509_certificate, + backend + ) + assert cert.tbs_certificate_bytes == binascii.unhexlify( + b"308201c5a0030201020210055556bcf25ea43535c3a40fd5ab4572300a06082" + b"a8648ce3d0403033061310b300906035504061302555331153013060355040a" + b"130c446967694365727420496e6331193017060355040b13107777772e64696" + b"769636572742e636f6d3120301e06035504031317446967694365727420476c" + b"6f62616c20526f6f74204733301e170d3133303830313132303030305a170d3" + b"338303131353132303030305a3061310b300906035504061302555331153013" + b"060355040a130c446967694365727420496e6331193017060355040b1310777" + b"7772e64696769636572742e636f6d3120301e06035504031317446967694365" + b"727420476c6f62616c20526f6f742047333076301006072a8648ce3d0201060" + b"52b8104002203620004dda7d9bb8ab80bfb0b7f21d2f0bebe73f3335d1abc34" + b"eadec69bbcd095f6f0ccd00bba615b51467e9e2d9fee8e630c17ec0770f5cf8" + b"42e40839ce83f416d3badd3a4145936789d0343ee10136c72deae88a7a16bb5" + b"43ce67dc23ff031ca3e23ea3423040300f0603551d130101ff040530030101f" + b"f300e0603551d0f0101ff040403020186301d0603551d0e04160414b3db48a4" + b"f9a1c5d8ae3641cc1163696229bc4bc6" + ) + verifier = cert.public_key().verifier( + cert.signature, ec.ECDSA(cert.signature_hash_algorithm) + ) + verifier.update(cert.tbs_certificate_bytes) + verifier.verify() + + def test_load_ecdsa_no_named_curve(self, backend): + _skip_curve_unsupported(backend, ec.SECP256R1()) + cert = _load_cert( + os.path.join("x509", "custom", "ec_no_named_curve.pem"), + x509.load_pem_x509_certificate, + backend + ) + with pytest.raises(NotImplementedError): + cert.public_key() + + +@pytest.mark.requires_backend_interface(interface=X509Backend) +@pytest.mark.requires_backend_interface(interface=EllipticCurveBackend) +class TestECDSACertificateRequest(object): + @pytest.mark.parametrize( + ("path", "loader_func"), + [ + [ + os.path.join("x509", "requests", "ec_sha256.pem"), + x509.load_pem_x509_csr + ], + [ + os.path.join("x509", "requests", "ec_sha256.der"), + x509.load_der_x509_csr + ], + ] + ) + def test_load_ecdsa_certificate_request(self, path, loader_func, backend): + _skip_curve_unsupported(backend, ec.SECP384R1()) + request = _load_cert(path, loader_func, backend) + assert isinstance(request.signature_hash_algorithm, hashes.SHA256) + public_key = request.public_key() + assert isinstance(public_key, ec.EllipticCurvePublicKey) + subject = request.subject + assert isinstance(subject, x509.Name) + assert list(subject) == [ + x509.NameAttribute(NameOID.COMMON_NAME, u'cryptography.io'), + x509.NameAttribute(NameOID.ORGANIZATION_NAME, u'PyCA'), + x509.NameAttribute(NameOID.COUNTRY_NAME, u'US'), + x509.NameAttribute(NameOID.STATE_OR_PROVINCE_NAME, u'Texas'), + x509.NameAttribute(NameOID.LOCALITY_NAME, u'Austin'), + ] + + def test_signature(self, backend): + _skip_curve_unsupported(backend, ec.SECP384R1()) + request = _load_cert( + os.path.join("x509", "requests", "ec_sha256.pem"), + x509.load_pem_x509_csr, + backend + ) + assert request.signature == binascii.unhexlify( + b"306502302c1a9f7de8c1787332d2307a886b476a59f172b9b0e250262f3238b1" + b"b45ee112bb6eb35b0fb56a123b9296eb212dffc302310094cf440c95c52827d5" + b"56ae6d76500e3008255d47c29f7ee782ed7558e51bfd76aa45df6d999ed5c463" + b"347fe2382d1751" + ) + + def test_tbs_certrequest_bytes(self, backend): + _skip_curve_unsupported(backend, ec.SECP384R1()) + request = _load_cert( + os.path.join("x509", "requests", "ec_sha256.pem"), + x509.load_pem_x509_csr, + backend + ) + assert request.tbs_certrequest_bytes == binascii.unhexlify( + b"3081d602010030573118301606035504030c0f63727970746f6772617068792" + b"e696f310d300b060355040a0c0450794341310b300906035504061302555331" + b"0e300c06035504080c055465786173310f300d06035504070c0641757374696" + b"e3076301006072a8648ce3d020106052b8104002203620004de19b514c0b3c3" + b"ae9b398ea3e26b5e816bdcf9102cad8f12fe02f9e4c9248724b39297ed7582e" + b"04d8b32a551038d09086803a6d3fb91a1a1167ec02158b00efad39c9396462f" + b"accff0ffaf7155812909d3726bd59fde001cff4bb9b2f5af8cbaa000" + ) + verifier = request.public_key().verifier( + request.signature, + ec.ECDSA(request.signature_hash_algorithm) + ) + verifier.update(request.tbs_certrequest_bytes) + verifier.verify() + + +@pytest.mark.requires_backend_interface(interface=X509Backend) +class TestOtherCertificate(object): + def test_unsupported_subject_public_key_info(self, backend): + cert = _load_cert( + os.path.join( + "x509", "custom", "unsupported_subject_public_key_info.pem" + ), + x509.load_pem_x509_certificate, + backend, + ) + + with pytest.raises(ValueError): + cert.public_key() + + +class TestNameAttribute(object): + def test_init_bad_oid(self): + with pytest.raises(TypeError): + x509.NameAttribute(None, u'value') + + def test_init_bad_value(self): + with pytest.raises(TypeError): + x509.NameAttribute( + x509.ObjectIdentifier('2.999.1'), + b'bytes' + ) + + def test_init_bad_country_code_value(self): + with pytest.raises(ValueError): + x509.NameAttribute( + NameOID.COUNTRY_NAME, + u'United States' + ) + + # unicode string of length 2, but > 2 bytes + with pytest.raises(ValueError): + x509.NameAttribute( + NameOID.COUNTRY_NAME, + u'\U0001F37A\U0001F37A' + ) + + def test_init_empty_value(self): + with pytest.raises(ValueError): + x509.NameAttribute(NameOID.ORGANIZATION_NAME, u'') + + def test_eq(self): + assert x509.NameAttribute( + x509.ObjectIdentifier('2.999.1'), u'value' + ) == x509.NameAttribute( + x509.ObjectIdentifier('2.999.1'), u'value' + ) + + def test_ne(self): + assert x509.NameAttribute( + x509.ObjectIdentifier('2.5.4.3'), u'value' + ) != x509.NameAttribute( + x509.ObjectIdentifier('2.5.4.5'), u'value' + ) + assert x509.NameAttribute( + x509.ObjectIdentifier('2.999.1'), u'value' + ) != x509.NameAttribute( + x509.ObjectIdentifier('2.999.1'), u'value2' + ) + assert x509.NameAttribute( + x509.ObjectIdentifier('2.999.2'), u'value' + ) != object() + + def test_repr(self): + na = x509.NameAttribute(x509.ObjectIdentifier('2.5.4.3'), u'value') + if six.PY3: + assert repr(na) == ( + "<NameAttribute(oid=<ObjectIdentifier(oid=2.5.4.3, name=commo" + "nName)>, value='value')>" + ) + else: + assert repr(na) == ( + "<NameAttribute(oid=<ObjectIdentifier(oid=2.5.4.3, name=commo" + "nName)>, value=u'value')>" + ) + + +class TestRelativeDistinguishedName(object): + def test_init_empty(self): + with pytest.raises(ValueError): + x509.RelativeDistinguishedName([]) + + def test_init_not_nameattribute(self): + with pytest.raises(TypeError): + x509.RelativeDistinguishedName(["not-a-NameAttribute"]) + + def test_init_duplicate_attribute(self): + rdn = x509.RelativeDistinguishedName([ + x509.NameAttribute(x509.ObjectIdentifier('2.999.1'), u'value1'), + x509.NameAttribute(x509.ObjectIdentifier('2.999.1'), u'value1'), + ]) + assert len(rdn) == 1 + + def test_hash(self): + rdn1 = x509.RelativeDistinguishedName([ + x509.NameAttribute(x509.ObjectIdentifier('2.999.1'), u'value1'), + x509.NameAttribute(x509.ObjectIdentifier('2.999.2'), u'value2'), + ]) + rdn2 = x509.RelativeDistinguishedName([ + x509.NameAttribute(x509.ObjectIdentifier('2.999.2'), u'value2'), + x509.NameAttribute(x509.ObjectIdentifier('2.999.1'), u'value1'), + ]) + rdn3 = x509.RelativeDistinguishedName([ + x509.NameAttribute(x509.ObjectIdentifier('2.999.1'), u'value1'), + x509.NameAttribute(x509.ObjectIdentifier('2.999.2'), u'value3'), + ]) + assert hash(rdn1) == hash(rdn2) + assert hash(rdn1) != hash(rdn3) + + def test_eq(self): + rdn1 = x509.RelativeDistinguishedName([ + x509.NameAttribute(x509.ObjectIdentifier('2.999.1'), u'value1'), + x509.NameAttribute(x509.ObjectIdentifier('2.999.2'), u'value2'), + ]) + rdn2 = x509.RelativeDistinguishedName([ + x509.NameAttribute(x509.ObjectIdentifier('2.999.2'), u'value2'), + x509.NameAttribute(x509.ObjectIdentifier('2.999.1'), u'value1'), + ]) + assert rdn1 == rdn2 + + def test_ne(self): + rdn1 = x509.RelativeDistinguishedName([ + x509.NameAttribute(x509.ObjectIdentifier('2.999.1'), u'value1'), + x509.NameAttribute(x509.ObjectIdentifier('2.999.2'), u'value2'), + ]) + rdn2 = x509.RelativeDistinguishedName([ + x509.NameAttribute(x509.ObjectIdentifier('2.999.1'), u'value1'), + x509.NameAttribute(x509.ObjectIdentifier('2.999.2'), u'value3'), + ]) + assert rdn1 != rdn2 + assert rdn1 != object() + + def test_iter_input(self): + attrs = [ + x509.NameAttribute(x509.ObjectIdentifier('2.999.1'), u'value1') + ] + rdn = x509.RelativeDistinguishedName(iter(attrs)) + assert list(rdn) == attrs + assert list(rdn) == attrs + + def test_get_attributes_for_oid(self): + oid = x509.ObjectIdentifier('2.999.1') + attr = x509.NameAttribute(oid, u'value1') + rdn = x509.RelativeDistinguishedName([attr]) + assert rdn.get_attributes_for_oid(oid) == [attr] + assert rdn.get_attributes_for_oid(x509.ObjectIdentifier('1.2.3')) == [] + + +class TestObjectIdentifier(object): + def test_eq(self): + oid1 = x509.ObjectIdentifier('2.999.1') + oid2 = x509.ObjectIdentifier('2.999.1') + assert oid1 == oid2 + + def test_ne(self): + oid1 = x509.ObjectIdentifier('2.999.1') + assert oid1 != x509.ObjectIdentifier('2.999.2') + assert oid1 != object() + + def test_repr(self): + oid = x509.ObjectIdentifier("2.5.4.3") + assert repr(oid) == "<ObjectIdentifier(oid=2.5.4.3, name=commonName)>" + oid = x509.ObjectIdentifier("2.999.1") + assert repr(oid) == "<ObjectIdentifier(oid=2.999.1, name=Unknown OID)>" + + def test_name_property(self): + oid = x509.ObjectIdentifier("2.5.4.3") + assert oid._name == 'commonName' + oid = x509.ObjectIdentifier("2.999.1") + assert oid._name == 'Unknown OID' + + def test_too_short(self): + with pytest.raises(ValueError): + x509.ObjectIdentifier("1") + + def test_invalid_input(self): + with pytest.raises(ValueError): + x509.ObjectIdentifier("notavalidform") + + def test_invalid_node1(self): + with pytest.raises(ValueError): + x509.ObjectIdentifier("7.1.37") + + def test_invalid_node2(self): + with pytest.raises(ValueError): + x509.ObjectIdentifier("1.50.200") + + def test_valid(self): + x509.ObjectIdentifier("0.35.200") + x509.ObjectIdentifier("1.39.999") + x509.ObjectIdentifier("2.5.29.3") + x509.ObjectIdentifier("2.999.37.5.22.8") + x509.ObjectIdentifier("2.25.305821105408246119474742976030998643995") + + +class TestName(object): + def test_eq(self): + ava1 = x509.NameAttribute(x509.ObjectIdentifier('2.999.1'), u'value1') + ava2 = x509.NameAttribute(x509.ObjectIdentifier('2.999.2'), u'value2') + name1 = x509.Name([ava1, ava2]) + name2 = x509.Name([ + x509.RelativeDistinguishedName([ava1]), + x509.RelativeDistinguishedName([ava2]), + ]) + name3 = x509.Name([x509.RelativeDistinguishedName([ava1, ava2])]) + name4 = x509.Name([x509.RelativeDistinguishedName([ava2, ava1])]) + assert name1 == name2 + assert name3 == name4 + + def test_ne(self): + ava1 = x509.NameAttribute(x509.ObjectIdentifier('2.999.1'), u'value1') + ava2 = x509.NameAttribute(x509.ObjectIdentifier('2.999.2'), u'value2') + name1 = x509.Name([ava1, ava2]) + name2 = x509.Name([ava2, ava1]) + name3 = x509.Name([x509.RelativeDistinguishedName([ava1, ava2])]) + assert name1 != name2 + assert name1 != name3 + assert name1 != object() + + def test_hash(self): + ava1 = x509.NameAttribute(x509.ObjectIdentifier('2.999.1'), u'value1') + ava2 = x509.NameAttribute(x509.ObjectIdentifier('2.999.2'), u'value2') + name1 = x509.Name([ava1, ava2]) + name2 = x509.Name([ + x509.RelativeDistinguishedName([ava1]), + x509.RelativeDistinguishedName([ava2]), + ]) + name3 = x509.Name([ava2, ava1]) + name4 = x509.Name([x509.RelativeDistinguishedName([ava1, ava2])]) + name5 = x509.Name([x509.RelativeDistinguishedName([ava2, ava1])]) + assert hash(name1) == hash(name2) + assert hash(name1) != hash(name3) + assert hash(name1) != hash(name4) + assert hash(name4) == hash(name5) + + def test_iter_input(self): + attrs = [ + x509.NameAttribute(x509.ObjectIdentifier('2.999.1'), u'value1') + ] + name = x509.Name(iter(attrs)) + assert list(name) == attrs + assert list(name) == attrs + + def test_rdns(self): + rdn1 = x509.NameAttribute(x509.ObjectIdentifier('2.999.1'), u'value1') + rdn2 = x509.NameAttribute(x509.ObjectIdentifier('2.999.2'), u'value2') + name1 = x509.Name([rdn1, rdn2]) + assert name1.rdns == [ + x509.RelativeDistinguishedName([rdn1]), + x509.RelativeDistinguishedName([rdn2]), + ] + name2 = x509.Name([x509.RelativeDistinguishedName([rdn1, rdn2])]) + assert name2.rdns == [x509.RelativeDistinguishedName([rdn1, rdn2])] + + def test_repr(self): + name = x509.Name([ + x509.NameAttribute(NameOID.COMMON_NAME, u'cryptography.io'), + x509.NameAttribute(NameOID.ORGANIZATION_NAME, u'PyCA'), + ]) + + if six.PY3: + assert repr(name) == ( + "<Name([<NameAttribute(oid=<ObjectIdentifier(oid=2.5.4.3, name" + "=commonName)>, value='cryptography.io')>, <NameAttribute(oid=" + "<ObjectIdentifier(oid=2.5.4.10, name=organizationName)>, valu" + "e='PyCA')>])>" + ) + else: + assert repr(name) == ( + "<Name([<NameAttribute(oid=<ObjectIdentifier(oid=2.5.4.3, name" + "=commonName)>, value=u'cryptography.io')>, <NameAttribute(oid" + "=<ObjectIdentifier(oid=2.5.4.10, name=organizationName)>, val" + "ue=u'PyCA')>])>" + ) + + def test_not_nameattribute(self): + with pytest.raises(TypeError): + x509.Name(["not-a-NameAttribute"]) + + @pytest.mark.requires_backend_interface(interface=X509Backend) + def test_bytes(self, backend): + name = x509.Name([ + x509.NameAttribute(NameOID.COMMON_NAME, u'cryptography.io'), + x509.NameAttribute(NameOID.ORGANIZATION_NAME, u'PyCA'), + ]) + assert name.public_bytes(backend) == binascii.unhexlify( + b"30293118301606035504030c0f63727970746f6772617068792e696f310d300" + b"b060355040a0c0450794341" + ) + + +def test_random_serial_number(monkeypatch): + sample_data = os.urandom(20) + + def notrandom(size): + assert size == len(sample_data) + return sample_data + + monkeypatch.setattr(os, "urandom", notrandom) + + serial_number = x509.random_serial_number() + + assert ( + serial_number == utils.int_from_bytes(sample_data, "big") >> 1 + ) + assert utils.bit_length(serial_number) < 160 |