def generate_bad_key_usage_cert(domain, base_year, quiet=False):
if not quiet:
write('Generating bad-key-usage cert ... ', end='')
full_domain = 'bad-key-usage.{}'.format(domain)
ca_private_key = load_private('ca')
ca_cert = load_cert('ca')
public_key = load_public('host')
builder = CertificateBuilder(
{
'country_name': 'US',
'state_or_province_name': 'Massachusetts',
'locality_name': 'Newbury',
'organization_name': 'Bad TLS Limited',
'common_name': full_domain,
},
public_key
)
builder.issuer = ca_cert
builder.subject_alt_domains = [full_domain]
builder.begin_date = datetime(base_year, 1, 1, 0, 0, 0, tzinfo=timezone.utc)
builder.end_date = datetime(base_year + 3, 1, 1, 0, 0, 0, tzinfo=timezone.utc)
builder.key_usage = set(['crl_sign'])
builder.extended_key_usage = set(['email_protection'])
certificate = builder.build(ca_private_key)
dump_cert('bad-key-usage', certificate)
if not quiet:
write('done')
def test_tsa_certificate_extended_key_usage(self):
public_key, private_key = self.ec_secp256r1
builder = CertificateBuilder(
{
'country_name': 'US',
'state_or_province_name': 'Massachusetts',
'locality_name': 'Newbury',
'organization_name': 'Codex Non Sufficit LC',
'common_name': 'Will Bond',
},
public_key
)
builder.self_signed = True
builder.extended_key_usage = set(('time_stamping',))
certificate = builder.build(private_key)
der_bytes = certificate.dump()
new_certificate = asn1crypto.x509.Certificate.load(der_bytes)
self.assertEqual(set(['key_usage', 'extended_key_usage']), new_certificate.critical_extensions)
def generate_bad_key_usage_cert(domain, base_year, quiet=False):
if not quiet:
write('Generating bad-key-usage cert ... ', end='')
full_domain = 'bad-key-usage.{}'.format(domain)
ca_private_key = load_private('ca')
ca_cert = load_cert('ca')
public_key = load_public('host')
builder = CertificateBuilder(
{
'country_name': 'US',
'state_or_province_name': 'Massachusetts',
'locality_name': 'Newbury',
'organization_name': 'Bad TLS Limited',
'common_name': full_domain,
}, public_key)
builder.issuer = ca_cert
builder.subject_alt_domains = [full_domain]
builder.begin_date = datetime(base_year,
1,
1,
0,
0,
0,
tzinfo=timezone.utc)
builder.end_date = datetime(base_year + 3,
1,
1,
0,
0,
0,
tzinfo=timezone.utc)
builder.key_usage = set(['crl_sign'])
builder.extended_key_usage = set(['email_protection'])
certificate = builder.build(ca_private_key)
dump_cert('bad-key-usage', certificate)
if not quiet:
write('done')
builder.self_signed = True
builder.end_entity = False
root_ca_certificate = builder.build(root_ca_private_key)
with open(os.path.join(fixtures_dir, "root.crt"), "wb") as f:
f.write(asymmetric.dump_certificate(root_ca_certificate))
root_crl_public_key, root_crl_private_key = asymmetric.generate_pair("rsa", bit_size=2048)
with open(os.path.join(fixtures_dir, "crl_issuer.key"), "wb") as f:
f.write(asymmetric.dump_private_key(root_crl_private_key, "password123", target_ms=20))
builder = CertificateBuilder(
{
"country_name": "US",
"state_or_province_name": "Massachusetts",
"locality_name": "Newbury",
"organization_name": "Codex Non Sufficit LC",
"common_name": "CodexNS Root CA 1 CRL Issuer",
},
root_crl_public_key,
)
builder.key_usage = set(["crl_signing"])
builder.extended_key_usage = None
builder.issuer = root_ca_certificate
root_crl_certificate = builder.build(root_ca_private_key)
with open(os.path.join(fixtures_dir, "crl_issuer.crt"), "wb") as f:
f.write(asymmetric.dump_certificate(root_crl_certificate))
def _sign(csr,
buf,
profile,
skip_notify=False,
skip_push=False,
overwrite=False,
signer=None):
# TODO: CRLDistributionPoints, OCSP URL, Certificate URL
assert buf.startswith(b"-----BEGIN ")
assert isinstance(csr, CertificationRequest)
csr_pubkey = asymmetric.load_public_key(
csr["certification_request_info"]["subject_pk_info"])
common_name = csr["certification_request_info"]["subject"].native[
"common_name"]
cert_path = os.path.join(config.SIGNED_DIR, "%s.pem" % common_name)
renew = False
attachments = [
(buf, "application/x-pem-file", common_name + ".csr"),
]
revoked_path = None
overwritten = False
# Move existing certificate if necessary
if os.path.exists(cert_path):
with open(cert_path, "rb") as fh:
prev_buf = fh.read()
header, _, der_bytes = pem.unarmor(prev_buf)
prev = x509.Certificate.load(der_bytes)
# TODO: assert validity here again?
renew = \
asymmetric.load_public_key(prev["tbs_certificate"]["subject_public_key_info"]) == \
csr_pubkey
# BUGBUG: is this enough?
if overwrite:
# TODO: is this the best approach?
# TODO: why didn't unittest detect bugs here?
prev_serial_hex = "%x" % prev.serial_number
revoked_path = os.path.join(config.REVOKED_DIR,
"%040x.pem" % prev.serial_number)
os.rename(cert_path, revoked_path)
attachments += [(prev_buf, "application/x-pem-file",
"deprecated.crt" if renew else "overwritten.crt")]
overwritten = True
else:
raise FileExistsError("Will not overwrite existing certificate")
builder = CertificateBuilder(
cn_to_dn(common_name,
const.FQDN,
o=certificate["tbs_certificate"]["subject"].native.get(
"organization_name"),
ou=profile.ou), csr_pubkey)
builder.serial_number = generate_serial()
now = datetime.utcnow()
builder.begin_date = now - const.CLOCK_SKEW_TOLERANCE
builder.end_date = now + timedelta(days=profile.lifetime)
builder.issuer = certificate
builder.ca = profile.ca
builder.key_usage = profile.key_usage
builder.extended_key_usage = profile.extended_key_usage
builder.subject_alt_domains = [common_name]
builder.ocsp_url = profile.responder_url
builder.crl_url = profile.revoked_url
end_entity_cert = builder.build(private_key)
end_entity_cert_buf = asymmetric.dump_certificate(end_entity_cert)
with open(cert_path + ".part", "wb") as fh:
fh.write(end_entity_cert_buf)
os.rename(cert_path + ".part", cert_path)
attachments.append(
(end_entity_cert_buf, "application/x-pem-file", common_name + ".crt"))
cert_serial_hex = "%x" % end_entity_cert.serial_number
# Create symlink
link_name = os.path.join(config.SIGNED_BY_SERIAL_DIR,
"%040x.pem" % end_entity_cert.serial_number)
assert not os.path.exists(
link_name
), "Certificate with same serial number already exists: %s" % link_name
os.symlink("../%s.pem" % common_name, link_name)
# Copy filesystem attributes to newly signed certificate
if revoked_path:
for key in listxattr(revoked_path):
if not key.startswith(b"user."):
continue
setxattr(cert_path, key, getxattr(revoked_path, key))
# Attach signer username
if signer:
setxattr(cert_path, "user.signature.username", signer)
if not skip_notify:
# Send mail
if renew: # Same keypair
mailer.send("certificate-renewed.md", **locals())
else: # New keypair
mailer.send("certificate-signed.md", **locals())
if not skip_push:
url = config.LONG_POLL_PUBLISH % hashlib.sha256(buf).hexdigest()
click.echo("Publishing certificate at %s ..." % url)
requests.post(url,
data=end_entity_cert_buf,
headers={
"User-Agent": "Certidude API",
"Content-Type": "application/x-x509-user-cert"
})
if renew:
# TODO: certificate-renewed event
push.publish("certificate-revoked", common_name)
push.publish("request-signed", common_name)
else:
push.publish("request-signed", common_name)
return end_entity_cert, end_entity_cert_buf
root_ca_private_key = asymmetric.load_private_key(
os.path.join(fixtures_dir, 'test.key'))
root_ca_certificate = asymmetric.load_certificate(
os.path.join(fixtures_dir, 'test.crt'))
root_ocsp_public_key, root_ocsp_private_key = asymmetric.generate_pair(
'rsa', bit_size=2048)
with open(os.path.join(fixtures_dir, 'test-ocsp.key'), 'wb') as f:
f.write(
asymmetric.dump_private_key(root_ocsp_private_key,
'password',
target_ms=20))
builder = CertificateBuilder(
{
'country_name': 'US',
'state_or_province_name': 'Massachusetts',
'locality_name': 'Newbury',
'organization_name': 'Codex Non Sufficit LC',
'organization_unit_name': 'Testing',
'common_name': 'CodexNS OCSP Responder',
}, root_ocsp_public_key)
builder.extended_key_usage = set(['ocsp_signing'])
builder.issuer = root_ca_certificate
root_ocsp_certificate = builder.build(root_ca_private_key)
with open(os.path.join(fixtures_dir, 'test-ocsp.crt'), 'wb') as f:
f.write(asymmetric.dump_certificate(root_ocsp_certificate))
fixtures_dir = os.path.join(os.path.dirname(__file__), '..', 'tests', 'fixtures')
root_ca_private_key = asymmetric.load_private_key(os.path.join(fixtures_dir, 'test.key'))
root_ca_certificate = asymmetric.load_certificate(os.path.join(fixtures_dir, 'test.crt'))
root_ocsp_public_key, root_ocsp_private_key = asymmetric.generate_pair('rsa', bit_size=2048)
with open(os.path.join(fixtures_dir, 'test-ocsp.key'), 'wb') as f:
f.write(asymmetric.dump_private_key(root_ocsp_private_key, 'password', target_ms=20))
builder = CertificateBuilder(
{
'country_name': 'US',
'state_or_province_name': 'Massachusetts',
'locality_name': 'Newbury',
'organization_name': 'Codex Non Sufficit LC',
'organization_unit_name': 'Testing',
'common_name': 'CodexNS OCSP Responder',
},
root_ocsp_public_key
)
builder.extended_key_usage = set(['ocsp_signing'])
builder.issuer = root_ca_certificate
root_ocsp_certificate = builder.build(root_ca_private_key)
with open(os.path.join(fixtures_dir, 'test-ocsp.crt'), 'wb') as f:
f.write(asymmetric.dump_certificate(root_ocsp_certificate))
def generate_client_certs(domain, base_year, quiet=False):
ca_private_key = load_private('ca')
ca_cert = load_cert('ca')
ca2_private_key = load_private('ca2')
ca2_cert = load_cert('ca2')
public_key = load_public('client')
crl_url = 'http://crls.{}:9991/client.crl'.format(domain)
# Certificate that is valid
if not quiet:
write('Generating good client cert ... ', end='')
builder = CertificateBuilder(
{
'country_name': 'US',
'state_or_province_name': 'Massachusetts',
'locality_name': 'Newbury',
'organization_name': 'TLS Client Certificates Limited',
'common_name': 'Good TLS Client Certificate',
}, public_key)
builder.issuer = ca_cert
builder.crl_url = crl_url
builder.begin_date = datetime(base_year,
1,
1,
0,
0,
0,
tzinfo=timezone.utc)
builder.end_date = datetime(base_year + 3,
1,
1,
0,
0,
0,
tzinfo=timezone.utc)
certificate = builder.build(ca_private_key)
dump_cert('client-good', certificate)
if not quiet:
write('done')
# Certificate that has expired
if not quiet:
write('Generating expired client cert ... ', end='')
builder = CertificateBuilder(
{
'country_name': 'US',
'state_or_province_name': 'Massachusetts',
'locality_name': 'Newbury',
'organization_name': 'TLS Client Certificates Limited',
'common_name': 'Expired TLS Client Certificate',
}, public_key)
builder.issuer = ca_cert
builder.crl_url = crl_url
builder.begin_date = datetime(base_year - 1,
1,
1,
0,
0,
0,
tzinfo=timezone.utc)
builder.end_date = datetime(base_year, 1, 1, 0, 0, 0, tzinfo=timezone.utc)
certificate = builder.build(ca_private_key)
dump_cert('client-expired', certificate)
if not quiet:
write('done')
# Certificate that is not yet valid
if not quiet:
write('Generating future client cert ... ', end='')
builder = CertificateBuilder(
{
'country_name': 'US',
'state_or_province_name': 'Massachusetts',
'locality_name': 'Newbury',
'organization_name': 'TLS Client Certificates Limited',
'common_name': 'Future TLS Client Certificate',
}, public_key)
builder.issuer = ca_cert
builder.crl_url = crl_url
builder.begin_date = datetime(base_year + 3,
1,
1,
0,
0,
0,
tzinfo=timezone.utc)
builder.end_date = datetime(base_year + 4,
1,
1,
0,
0,
0,
tzinfo=timezone.utc)
certificate = builder.build(ca_private_key)
dump_cert('client-future', certificate)
if not quiet:
write('done')
# Certificate issued by untrusted CA
if not quiet:
write('Generating untrusted client cert ... ', end='')
builder = CertificateBuilder(
{
'country_name': 'US',
'state_or_province_name': 'Massachusetts',
'locality_name': 'Newbury',
'organization_name': 'TLS Client Certificates Limited',
'common_name': 'Untrusted TLS Client Certificate',
}, public_key)
builder.issuer = ca2_cert
builder.begin_date = datetime(base_year,
1,
1,
0,
0,
0,
tzinfo=timezone.utc)
builder.end_date = datetime(base_year + 3,
1,
1,
0,
0,
0,
tzinfo=timezone.utc)
certificate = builder.build(ca2_private_key)
dump_cert('client-untrusted', certificate)
if not quiet:
write('done')
# Certificate that has a weak signature
if not quiet:
write('Generating weak client cert ... ', end='')
builder = CertificateBuilder(
{
'country_name': 'US',
'state_or_province_name': 'Massachusetts',
'locality_name': 'Newbury',
'organization_name': 'TLS Client Certificates Limited',
'common_name': 'Weak TLS Client Certificate',
}, public_key)
builder.issuer = ca_cert
builder.crl_url = crl_url
# Hack since API doesn't allow selection of weak algo
builder._hash_algo = 'md5'
builder.begin_date = datetime(base_year,
1,
1,
0,
0,
0,
tzinfo=timezone.utc)
builder.end_date = datetime(base_year + 3,
1,
1,
0,
0,
0,
tzinfo=timezone.utc)
certificate = builder.build(ca_private_key)
dump_cert('client-weak', certificate)
if not quiet:
write('done')
# Certificate that has bad key usage
if not quiet:
write('Generating bad key usage client cert ... ', end='')
builder = CertificateBuilder(
{
'country_name': 'US',
'state_or_province_name': 'Massachusetts',
'locality_name': 'Newbury',
'organization_name': 'TLS Client Certificates Limited',
'common_name': 'Bad Key Usage TLS Client Certificate',
}, public_key)
builder.issuer = ca_cert
builder.crl_url = crl_url
builder.begin_date = datetime(base_year,
1,
1,
0,
0,
0,
tzinfo=timezone.utc)
builder.end_date = datetime(base_year + 3,
1,
1,
0,
0,
0,
tzinfo=timezone.utc)
builder.key_usage = set(['crl_sign'])
builder.extended_key_usage = set(['email_protection'])
certificate = builder.build(ca_private_key)
dump_cert('client-bad-key-usage', certificate)
if not quiet:
write('done')
# Certificate that has been revoked
if not quiet:
write('Generating revoked client cert ... ', end='')
builder = CertificateBuilder(
{
'country_name': 'US',
'state_or_province_name': 'Massachusetts',
'locality_name': 'Newbury',
'organization_name': 'TLS Client Certificates Limited',
'common_name': 'Revoked TLS Client Certificate',
}, public_key)
builder.issuer = ca_cert
builder.crl_url = crl_url
builder.begin_date = datetime(base_year,
1,
1,
0,
0,
0,
tzinfo=timezone.utc)
builder.end_date = datetime(base_year + 3,
1,
1,
0,
0,
0,
tzinfo=timezone.utc)
revoked_certificate = builder.build(ca_private_key)
dump_cert('client-revoked', revoked_certificate)
if not quiet:
write('done')
crl_number = 1000
crl_builder = CertificateListBuilder(crl_url, ca_cert, crl_number)
crl_builder.add_certificate(
revoked_certificate.serial_number,
datetime(base_year, 1, 2, 0, 0, 0, tzinfo=timezone.utc),
'key_compromise')
certificate_list = crl_builder.build(ca_private_key)
dump_crl('client', certificate_list)
def _sign(csr, buf, overwrite=False):
# TODO: CRLDistributionPoints, OCSP URL, Certificate URL
assert buf.startswith("-----BEGIN CERTIFICATE REQUEST-----\n")
assert isinstance(csr, CertificationRequest)
csr_pubkey = asymmetric.load_public_key(
csr["certification_request_info"]["subject_pk_info"])
common_name = csr["certification_request_info"]["subject"].native[
"common_name"]
cert_path = os.path.join(config.SIGNED_DIR, "%s.pem" % common_name)
renew = False
attachments = [
(buf, "application/x-pem-file", common_name + ".csr"),
]
revoked_path = None
overwritten = False
# Move existing certificate if necessary
if os.path.exists(cert_path):
with open(cert_path) as fh:
prev_buf = fh.read()
header, _, der_bytes = pem.unarmor(prev_buf)
prev = x509.Certificate.load(der_bytes)
# TODO: assert validity here again?
renew = \
asymmetric.load_public_key(prev["tbs_certificate"]["subject_public_key_info"]) == \
csr_pubkey
# BUGBUG: is this enough?
if overwrite:
# TODO: is this the best approach?
prev_serial_hex = "%x" % prev.serial_number
revoked_path = os.path.join(config.REVOKED_DIR,
"%s.pem" % prev_serial_hex)
os.rename(cert_path, revoked_path)
attachments += [(prev_buf, "application/x-pem-file",
"deprecated.crt" if renew else "overwritten.crt")]
overwritten = True
else:
raise EnvironmentError("Will not overwrite existing certificate")
# Sign via signer process
builder = CertificateBuilder({u'common_name': common_name}, csr_pubkey)
builder.serial_number = random.randint(
0x1000000000000000000000000000000000000000,
0xffffffffffffffffffffffffffffffffffffffff)
now = datetime.utcnow()
builder.begin_date = now - timedelta(minutes=5)
builder.end_date = now + timedelta(
days=config.SERVER_CERTIFICATE_LIFETIME
if server_flags(common_name) else config.CLIENT_CERTIFICATE_LIFETIME)
builder.issuer = certificate
builder.ca = False
builder.key_usage = set([u"digital_signature", u"key_encipherment"])
# OpenVPN uses CN while StrongSwan uses SAN
if server_flags(common_name):
builder.subject_alt_domains = [common_name]
builder.extended_key_usage = set(
[u"server_auth", u"1.3.6.1.5.5.8.2.2", u"client_auth"])
else:
builder.extended_key_usage = set([u"client_auth"])
end_entity_cert = builder.build(private_key)
end_entity_cert_buf = asymmetric.dump_certificate(end_entity_cert)
with open(cert_path + ".part", "wb") as fh:
fh.write(end_entity_cert_buf)
os.rename(cert_path + ".part", cert_path)
attachments.append(
(end_entity_cert_buf, "application/x-pem-file", common_name + ".crt"))
cert_serial_hex = "%x" % end_entity_cert.serial_number
# Create symlink
link_name = os.path.join(config.SIGNED_BY_SERIAL_DIR,
"%x.pem" % end_entity_cert.serial_number)
assert not os.path.exists(
link_name
), "Certificate with same serial number already exists: %s" % link_name
os.symlink("../%s.pem" % common_name, link_name)
# Copy filesystem attributes to newly signed certificate
if revoked_path:
for key in listxattr(revoked_path):
if not key.startswith("user."):
continue
setxattr(cert_path, key, getxattr(revoked_path, key))
# Send mail
if renew: # Same keypair
mailer.send("certificate-renewed.md", **locals())
else: # New keypair
mailer.send("certificate-signed.md", **locals())
url = config.LONG_POLL_PUBLISH % hashlib.sha256(buf).hexdigest()
click.echo("Publishing certificate at %s ..." % url)
requests.post(url,
data=end_entity_cert_buf,
headers={
"User-Agent": "Certidude API",
"Content-Type": "application/x-x509-user-cert"
})
push.publish("request-signed", common_name)
return end_entity_cert, end_entity_cert_buf
def _sign(csr,
buf,
skip_notify=False,
skip_push=False,
overwrite=False,
profile="default",
signer=None):
# TODO: CRLDistributionPoints, OCSP URL, Certificate URL
if profile not in config.PROFILES:
raise ValueError("Invalid profile supplied '%s'" % profile)
assert buf.startswith(b"-----BEGIN ")
assert isinstance(csr, CertificationRequest)
csr_pubkey = asymmetric.load_public_key(
csr["certification_request_info"]["subject_pk_info"])
common_name = csr["certification_request_info"]["subject"].native[
"common_name"]
cert_path = os.path.join(config.SIGNED_DIR, "%s.pem" % common_name)
renew = False
attachments = [
(buf, "application/x-pem-file", common_name + ".csr"),
]
revoked_path = None
overwritten = False
# Move existing certificate if necessary
if os.path.exists(cert_path):
with open(cert_path, "rb") as fh:
prev_buf = fh.read()
header, _, der_bytes = pem.unarmor(prev_buf)
prev = x509.Certificate.load(der_bytes)
# TODO: assert validity here again?
renew = \
asymmetric.load_public_key(prev["tbs_certificate"]["subject_public_key_info"]) == \
csr_pubkey
# BUGBUG: is this enough?
if overwrite:
# TODO: is this the best approach?
prev_serial_hex = "%x" % prev.serial_number
revoked_path = os.path.join(config.REVOKED_DIR,
"%s.pem" % prev_serial_hex)
os.rename(cert_path, revoked_path)
attachments += [(prev_buf, "application/x-pem-file",
"deprecated.crt" if renew else "overwritten.crt")]
overwritten = True
else:
raise FileExistsError("Will not overwrite existing certificate")
# Sign via signer process
dn = {u'common_name': common_name}
profile_server_flags, lifetime, dn[
"organizational_unit_name"], _ = config.PROFILES[profile]
lifetime = int(lifetime)
builder = CertificateBuilder(dn, csr_pubkey)
builder.serial_number = random.randint(
0x1000000000000000000000000000000000000000,
0x7fffffffffffffffffffffffffffffffffffffff)
now = datetime.utcnow()
builder.begin_date = now - timedelta(minutes=5)
builder.end_date = now + timedelta(days=lifetime)
builder.issuer = certificate
builder.ca = False
builder.key_usage = set(["digital_signature", "key_encipherment"])
# If we have FQDN and profile suggests server flags, enable them
if server_flags(common_name) and profile_server_flags:
builder.subject_alt_domains = [
common_name
] # OpenVPN uses CN while StrongSwan uses SAN to match hostname of the server
builder.extended_key_usage = set(
["server_auth", "1.3.6.1.5.5.8.2.2", "client_auth"])
else:
builder.subject_alt_domains = [common_name
] # iOS demands SAN also for clients
builder.extended_key_usage = set(["client_auth"])
end_entity_cert = builder.build(private_key)
end_entity_cert_buf = asymmetric.dump_certificate(end_entity_cert)
with open(cert_path + ".part", "wb") as fh:
fh.write(end_entity_cert_buf)
os.rename(cert_path + ".part", cert_path)
attachments.append(
(end_entity_cert_buf, "application/x-pem-file", common_name + ".crt"))
cert_serial_hex = "%x" % end_entity_cert.serial_number
# Create symlink
link_name = os.path.join(config.SIGNED_BY_SERIAL_DIR,
"%x.pem" % end_entity_cert.serial_number)
assert not os.path.exists(
link_name
), "Certificate with same serial number already exists: %s" % link_name
os.symlink("../%s.pem" % common_name, link_name)
# Copy filesystem attributes to newly signed certificate
if revoked_path:
for key in listxattr(revoked_path):
if not key.startswith(b"user."):
continue
setxattr(cert_path, key, getxattr(revoked_path, key))
# Attach signer username
if signer:
setxattr(cert_path, "user.signature.username", signer)
if not skip_notify:
# Send mail
if renew: # Same keypair
mailer.send("certificate-renewed.md", **locals())
else: # New keypair
mailer.send("certificate-signed.md", **locals())
if not skip_push:
url = config.LONG_POLL_PUBLISH % hashlib.sha256(buf).hexdigest()
click.echo("Publishing certificate at %s ..." % url)
requests.post(url,
data=end_entity_cert_buf,
headers={
"User-Agent": "Certidude API",
"Content-Type": "application/x-x509-user-cert"
})
push.publish("request-signed", common_name)
return end_entity_cert, end_entity_cert_buf
builder.end_entity = False
root_ca_certificate = builder.build(root_ca_private_key)
with open(os.path.join(fixtures_dir, 'root.crt'), 'wb') as f:
f.write(asymmetric.dump_certificate(root_ca_certificate))
root_crl_public_key, root_crl_private_key = asymmetric.generate_pair(
'rsa', bit_size=2048)
with open(os.path.join(fixtures_dir, 'crl_issuer.key'), 'wb') as f:
f.write(
asymmetric.dump_private_key(root_crl_private_key,
'password123',
target_ms=20))
builder = CertificateBuilder(
{
'country_name': 'US',
'state_or_province_name': 'Massachusetts',
'locality_name': 'Newbury',
'organization_name': 'Codex Non Sufficit LC',
'common_name': 'CodexNS Root CA 1 CRL Issuer',
}, root_crl_public_key)
builder.key_usage = set(['crl_signing'])
builder.extended_key_usage = None
builder.issuer = root_ca_certificate
root_crl_certificate = builder.build(root_ca_private_key)
with open(os.path.join(fixtures_dir, 'crl_issuer.crt'), 'wb') as f:
f.write(asymmetric.dump_certificate(root_crl_certificate))
