# 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 pytest
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, rsa
from cryptography.x509.oid import (
AuthorityInformationAccessOID, ExtendedKeyUsageOID, ExtensionOID, NameOID
)
from .hazmat.primitives.fixtures_dsa import DSA_KEY_2048
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)
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_extensions(self, backend):
crl = _load_cert(
os.path.join("x509", "custom", "crl_all_reasons.pem"),
x509.load_pem_x509_crl,
backend
)
# CRL extensions are currently not supported in the OpenSSL backend.
with pytest.raises(NotImplementedError):
crl.extensions
@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.GeneralNames([
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_oid(
x509.OID_CRL_REASON).value
assert reason == x509.ReasonFlags.unspecified
issuer = rev1.extensions.get_extension_for_oid(
x509.OID_CERTIFICATE_ISSUER).value
assert issuer == exp_issuer
date = rev1.extensions.get_extension_for_oid(
x509.OID_INVALIDITY_DATE).value
assert isinstance(date, datetime.datetime)
assert date.isoformat() == "2015-01-01T00:00:00"
# 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_oid(x509.OID_CRL_REASON)
except x509.ExtensionNotFound:
# Not all revoked certs have a reason extension.
pass
else:
flags.discard(r.value)
assert len(flags) == 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
)
with pytest.raises(x509.UnsupportedExtension):
crl[0].extensions
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
@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 == 11559813051657483483
fingerprint = binascii.hexlify(cert.fingerprint(hashes.SHA1()))
assert fingerprint == b"2b619ed04bfc9c3b08eb677d272192286a0947a8"
assert isinstance(cert.signature_hash_algorithm, hashes.SHA1)
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 == 2
fingerprint = binascii.hexlify(cert.fingerprint(hashes.SHA1()))
assert fingerprint == b"6f49779533d565e8b7c1062503eab41492c38e4d"
assert isinstance(cert.signature_hash_algorithm, hashes.SHA256)
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 == 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 == 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 == 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)
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
)
with pytest.raises(x509.UnsupportedExtension) as exc:
request.extensions
assert exc.value.oid == x509.ObjectIdentifier('1.2.3.4')
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) == 0
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(u"cryptography.io"),
x509.DNSName(u"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_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')
@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(u"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(u"cryptography.io"),
]
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_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)
@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(-10)
def test_serial_number_must_be_less_than_160_bits_long(self):
with pytest.raises(ValueError):
# 2 raised to the 160th power is actually 161 bits
x509.CertificateBuilder().serial_number(2 ** 160)
def test_serial_number_may_only_be_set_once(self):
builder = x509.CertificateBuilder().serial_number(10)
with pytest.raises(ValueError):
builder.serial_number(20)
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()
)
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=DSABackend)
@pytest.mark.requires_backend_interface(interface=X509Backend)
def test_sign_with_dsa_private_key_is_unsupported(self, backend):
if backend._lib.OPENSSL_VERSION_NUMBER >= 0x10001000:
pytest.skip("Requires an older OpenSSL. Must be < 1.0.1")
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(NotImplementedError):
builder.sign(private_key, hashes.SHA512(), backend)
@pytest.mark.requires_backend_interface(interface=EllipticCurveBackend)
@pytest.mark.requires_backend_interface(interface=X509Backend)
def test_sign_with_ec_private_key_is_unsupported(self, backend):
if backend._lib.OPENSSL_VERSION_NUMBER >= 0x10001000:
pytest.skip("Requires an older OpenSSL. Must be < 1.0.1")
_skip_curve_unsupported(backend, ec.SECP256R1())
private_key = ec.generate_private_key(ec.SECP256R1(), 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(NotImplementedError):
builder.sign(private_key, hashes.SHA512(), backend)
@pytest.mark.parametrize(
"cdp",
[
x509.CRLDistributionPoints([
x509.DistributionPoint(
full_name=None,
relative_name=x509.Name([
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):
if backend._lib.OPENSSL_VERSION_NUMBER < 0x10001000:
pytest.skip("Requires a newer OpenSSL. Must be >= 1.0.1")
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(u"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(u"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):
if backend._lib.OPENSSL_VERSION_NUMBER < 0x10001000:
pytest.skip("Requires a newer OpenSSL. Must be >= 1.0.1")
_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(u"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(u"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.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(u"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(u"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.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.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_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_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):
if backend._lib.OPENSSL_VERSION_NUMBER < 0x10001000:
pytest.skip("Requires a newer OpenSSL. Must be >= 1.0.1")
_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):
if backend._lib.OPENSSL_VERSION_NUMBER < 0x10001000:
pytest.skip("Requires a newer OpenSSL. Must be >= 1.0.1")
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(u"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(u"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(u"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)
csr = x509.CertificateSigningRequestBuilder().subject_name(
x509.Name([
x509.NameAttribute(NameOID.COMMON_NAME, u"SAN"),
])
).add_extension(
x509.SubjectAlternativeName([
x509.DNSName(u"example.com"),
x509.DNSName(u"*.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"
),
]),
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 list(ext.value) == [
x509.DNSName(u"example.com"),
x509.DNSName(u"*.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"
),
]
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)
builder = x509.CertificateSigningRequestBuilder()
request = builder.subject_name(
x509.Name([x509.NameAttribute(NameOID.COUNTRY_NAME, u'US')])
).add_extension(
x509.ExtendedKeyUsage([
ExtendedKeyUsageOID.CLIENT_AUTH,
ExtendedKeyUsageOID.SERVER_AUTH,
ExtendedKeyUsageOID.CODE_SIGNING,
]), critical=False
).sign(private_key, hashes.SHA256(), backend)
eku = request.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)
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(u"http://ocsp.domain.com")
),
x509.AccessDescription(
AuthorityInformationAccessOID.CA_ISSUERS,
x509.UniformResourceIdentifier(u"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
)
@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'),
]
@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_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.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'),
]
@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('oid'),
b'bytes'
)
def test_eq(self):
assert x509.NameAttribute(
x509.ObjectIdentifier('oid'), u'value'
) == x509.NameAttribute(
x509.ObjectIdentifier('oid'), 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('oid'), u'value'
) != x509.NameAttribute(
x509.ObjectIdentifier('oid'), u'value2'
)
assert x509.NameAttribute(
x509.ObjectIdentifier('oid'), 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 TestObjectIdentifier(object):
def test_eq(self):
oid1 = x509.ObjectIdentifier('oid')
oid2 = x509.ObjectIdentifier('oid')
assert oid1 == oid2
def test_ne(self):
oid1 = x509.ObjectIdentifier('oid')
assert oid1 != x509.ObjectIdentifier('oid1')
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("oid1")
assert repr(oid) == "<ObjectIdentifier(oid=oid1, name=Unknown OID)>"
def test_name_property(self):
oid = x509.ObjectIdentifier("2.5.4.3")
assert oid._name == 'commonName'
oid = x509.ObjectIdentifier("oid1")
assert oid._name == 'Unknown OID'
class TestName(object):
def test_eq(self):
name1 = x509.Name([
x509.NameAttribute(x509.ObjectIdentifier('oid'), u'value1'),
x509.NameAttribute(x509.ObjectIdentifier('oid2'), u'value2'),
])
name2 = x509.Name([
x509.NameAttribute(x509.ObjectIdentifier('oid'), u'value1'),
x509.NameAttribute(x509.ObjectIdentifier('oid2'), u'value2'),
])
assert name1 == name2
def test_ne(self):
name1 = x509.Name([
x509.NameAttribute(x509.ObjectIdentifier('oid'), u'value1'),
x509.NameAttribute(x509.ObjectIdentifier('oid2'), u'value2'),
])
name2 = x509.Name([
x509.NameAttribute(x509.ObjectIdentifier('oid2'), u'value2'),
x509.NameAttribute(x509.ObjectIdentifier('oid'), u'value1'),
])
assert name1 != name2
assert name1 != object()
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')>])>"
)