def mkreq(self, bits, ca=0):
pk = EVP.PKey()
x = X509.Request()
rsa = RSA.gen_key(bits, 65537, self.callback)
pk.assign_rsa(rsa)
rsa = None # should not be freed here
x.set_pubkey(pk)
name = x.get_subject()
name.C = "UK"
name.CN = "OpenSSL Group"
if not ca:
ext1 = X509.new_extension('subjectAltName',
'DNS:foobar.example.com')
ext2 = X509.new_extension('nsComment', 'Hello there')
extstack = X509.X509_Extension_Stack()
extstack.push(ext1)
extstack.push(ext2)
x.add_extensions(extstack)
with self.assertRaises(ValueError):
x.sign(pk, 'sha513')
x.sign(pk, 'sha1')
self.assertTrue(x.verify(pk))
pk2 = x.get_pubkey()
self.assertTrue(x.verify(pk2))
return x, pk
def test_extstack(self):
# new
ext1 = X509.new_extension('subjectAltName', 'DNS:foobar.example.com')
ext2 = X509.new_extension('nsComment', 'Hello there')
extstack = X509.X509_Extension_Stack()
# push
extstack.push(ext1)
extstack.push(ext2)
self.assertEqual(extstack[1].get_name(), 'nsComment')
self.assertEqual(len(extstack), 2)
# iterator
i = 0
for e in extstack:
i += 1
self.assertGreater(len(e.get_name()), 0)
self.assertEqual(i, 2)
# pop
ext3 = extstack.pop()
self.assertEqual(len(extstack), 1)
self.assertEqual(extstack[0].get_name(), 'subjectAltName')
extstack.push(ext3)
self.assertEqual(len(extstack), 2)
self.assertEqual(extstack[1].get_name(), 'nsComment')
self.assertIsNotNone(extstack.pop())
self.assertIsNotNone(extstack.pop())
self.assertIsNone(extstack.pop())
def makeRequest(pk):
"""
Creates a new CSR from an RSA key
:param pk: RSA key
:return: CSR
"""
pkey = EVP.PKey()
pkey.assign_rsa(pk)
req = X509.Request()
req.set_version(2)
req.set_pubkey(pkey)
name = X509.X509_Name()
name.CN = 'cirosec gmbh'
req.set_subject_name(name)
ext1 = X509.new_extension('subjectAltName', 'DNS:foobar.example.com')
ext2 = X509.new_extension('nsComment', 'Hello there')
extstack = X509.X509_Extension_Stack()
extstack.push(ext1)
extstack.push(ext2)
assert (extstack[1].get_name() == 'nsComment')
req.add_extensions(extstack)
req.sign(pkey, 'sha1')
return req
def make_csr(key_file, domains):
"""
Returns new CSR in PEM and DER form using key_file containing all domains
"""
assert domains, "Must provide one or more hostnames for the CSR."
rsa_key = M2Crypto.RSA.load_key(key_file)
pk = EVP.PKey()
pk.assign_rsa(rsa_key)
x = X509.Request()
x.set_pubkey(pk)
name = x.get_subject()
name.C = "US"
name.ST = "Michigan"
name.L = "Ann Arbor"
name.O = "EFF"
name.OU = "University of Michigan"
name.CN = domains[0]
extstack = X509.X509_Extension_Stack()
ext = X509.new_extension('subjectAltName', ", ".join(["DNS:%s" % d for d in domains]))
extstack.push(ext)
x.add_extensions(extstack)
x.sign(pk,'sha256')
assert x.verify(pk)
pk2 = x.get_pubkey()
assert x.verify(pk2)
return x.as_pem(), x.as_der()
def test_extstack(self):
# new
ext1 = X509.new_extension('subjectAltName', 'DNS:foobar.example.com')
ext2 = X509.new_extension('nsComment', 'Hello there')
extstack = X509.X509_Extension_Stack()
# push
extstack.push(ext1)
extstack.push(ext2)
assert (extstack[1].get_name() == 'nsComment')
assert len(extstack) == 2
# iterator
i = 0
for e in extstack:
i += 1
assert len(e.get_name()) > 0
assert i == 2
# pop
ext3 = extstack.pop()
assert len(extstack) == 1
assert (extstack[0].get_name() == 'subjectAltName')
extstack.push(ext3)
assert len(extstack) == 2
assert (extstack[1].get_name() == 'nsComment')
assert extstack.pop() is not None
assert extstack.pop() is not None
assert extstack.pop() is None
def _make_cert_request(cn, rsa, uid=None):
pub_key = EVP.PKey()
request = X509.Request()
pub_key.assign_rsa(rsa)
request.set_pubkey(pub_key)
subject = request.get_subject()
subject.nid['UID'] = 458 # openssl lacks support for userid
subject.CN = "%s" % cn
if uid:
subject.UID = uid
ext2 = X509.new_extension('nsComment', 'Pulp Identity Certificate for Consumer: [%s]' % cn)
extensions = X509.X509_Extension_Stack()
extensions.push(ext2)
request.add_extensions(extensions)
request.sign(pub_key, 'sha256')
return request, pub_key
def _make_cert_request(uid, rsa):
pub_key = EVP.PKey()
x = X509.Request()
pub_key.assign_rsa(rsa)
rsa = None # should not be freed here
x.set_pubkey(pub_key)
name = x.get_subject()
name.CN = "%s" % uid
ext2 = X509.new_extension(
'nsComment',
'Pulp Generated Identity Certificate for Consumer: [%s]' % uid)
extstack = X509.X509_Extension_Stack()
extstack.push(ext2)
x.add_extensions(extstack)
x.sign(pub_key, 'sha1')
pk2 = x.get_pubkey()
return x, pub_key
def make_request(pkey, cn):
req = X509.Request()
req.set_version(2)
req.set_pubkey(pkey)
name = X509.X509_Name()
name.CN = cn
req.set_subject_name(name)
ext1 = X509.new_extension('subjectAltName', 'DNS:foobar.example.com')
ext2 = X509.new_extension('nsComment', 'Hello there')
extstack = X509.X509_Extension_Stack()
extstack.push(ext1)
extstack.push(ext2)
assert (extstack[1].get_name() == 'nsComment')
req.add_extensions(extstack)
return req
def set_csr_xmppwebid(csr, id_xmpp, webid):
"""Set the CSR SubjectAltName and Subject
:param csr: x509 request
:type csr: X509.Request
:param id_xmpp: xmpp id
:param webid: FOAF WebId
:type id_xmpp: string
:type webid: string
:return: x509 request
:rtype: X509.Request
"""
# if the req is going to be signed by a ca
# there is not need to add CN because the ca cert is going to overwrite it
# optional
# Create a new X509_Name object for our new certificate
x509_name = X509.X509_Name()
x509_name.O = O
x509_name.OU = OU #+"/UID="+webid
# set Subject commonName
x509_name.CN = "(Personal)" #+webid + "/"+ ID_ON_XMPPADDR_OID + "=" + id_xmpp
# x509_name.add_entry_by_txt(field='CN', type=MBSTRING_ASC,
# entry='(Personal)'+webid +
# '/'+ ID_ON_XMPPADDR_OID + '=' + id_xmpp, len=-1, loc=-1, set=0 )
logging.debug("Subject name in CSR: %s" % x509_name)
print "Subject name in CSR: %s" % x509_name
# Set the subject
csr.set_subject_name(x509_name)
# set subjectAltName extension
ext1 = X509.new_extension(
'subjectAltName',
'URI:%s, otherName:%s;UTF8:%s' % (webid, ID_ON_XMPPADDR_OID, id_xmpp))
extstack = X509.X509_Extension_Stack()
extstack.push(ext1)
csr.add_extensions(extstack)
return csr
def make_request(private_key_path, username, user_context, critical, output,
is_printed):
private_key = None
try:
private_key = RSA.load_key(private_key_path, callback=password)
except (IOError, RSA.RSAError):
print('ERROR request: Could not load key pair from %s' %
private_key_path)
exit(1)
request = X509.Request()
request.set_pubkey(private_key)
request.set_version(2)
name = X509.X509_Name()
name.C = DEFAULT_FIELDS['C']
name.ST = DEFAULT_FIELDS['ST']
name.L = DEFAULT_FIELDS['L']
name.O = DEFAULT_FIELDS['O']
name.OU = DEFAULT_FIELDS['OU']
name.CN = username
if user_context:
context = user_context
else:
context = getcon_raw()[1]
if not context:
print('ERROR request: Could not get SELinux context for user %s' %
username)
exit(1)
request.set_subject_name(name)
stack = X509.X509_Extension_Stack()
stack.push(X509.new_extension('selinuxContext', context, int(critical)))
request.add_extensions(stack)
request.sign(private_key, 'sha1')
if not output:
output = path.abspath(path.curdir) + '/%s.csr' % DEFAULT_FIELDS['CN']
request.save_pem(output)
if is_printed:
print(request.as_text())
print('Request was saved to %s' % output)
def __init__(self,
hostname,
output_dir=None,
altnames=None,
location=None):
"""
Create a certificate signing request (CSR - stored in the x509request attribute) and associated keys (stored in keypair attribute).
The caller should use write_csr to write CSR when ready.
The caller should use write_pkey to write private key when ready.
INPUT
- hostname: common name for the CN field
- output_dir (optional): The destination directory to write the request and key
- altnames (optional): Additional hostnames to be added to the Subject Alternative Names.
- location (optional): A namedtuple containing country (e.g., US), state (e.g., Wisconsin),
locality (e.g., Madison), and organization (e.g., University of Wisconsin)
"""
self.output_dir = output_dir
# TODO this check should come from the main commands
if not output_dir:
self.output_dir = os.getcwd()
# Set up CSR and PKEY file paths
self.csrpath = os.path.join(output_dir, hostname + '.req')
self.keypath = os.path.join(output_dir, hostname + '-key.pem')
self.keypair = RSA.gen_key(self.KEY_LENGTH, self.PUB_EXPONENT,
lambda: None)
# The message digest shouldn't matter here since we don't use
# PKey.sign_*() or PKey.verify_*() but there's no harm in keeping it and
# it ensures a strong hashing algo (default is sha1) if we do decide to
# sign things in the future
self.pkey = EVP.PKey(md='sha256')
self.pkey.assign_rsa(self.keypair)
self.x509request = X509.Request()
x509name = X509.X509_Name()
# Build entries for x509 name
entries = list()
entries.append(('CN', hostname))
if location:
entries.append(('C', location.country))
entries.append(('ST', location.state))
entries.append(('L', location.locality))
entries.append(('O', location.organization))
for key, val in entries:
x509name.add_entry_by_txt(field=key,
type=MBSTRING_ASC,
entry=val,
len=-1,
loc=-1,
set=0)
self.x509request.set_subject_name(x509name)
# Build altnames
self.altnames = None
if altnames:
str_altnames = ",".join(altnames)
self.altnames = str_altnames
extension_stack = X509.X509_Extension_Stack()
extension = X509.new_extension(
'subjectAltName',
", ".join(['DNS:%s' % name for name in altnames]))
extension.set_critical(1)
extension_stack.push(extension)
self.x509request.add_extensions(extension_stack)
# Set up pubkey and sign CSR with privkey
self.x509request.set_pubkey(pkey=self.pkey)
self.x509request.set_version(0)
self.x509request.sign(pkey=self.pkey, md='sha256')