def _generateChild(self, cert, serial, validity):
key = crypto.PKey()
key.generate_key(self.keyalg, self.keysize)
req = crypto.X509Req()
setSubject(cert.dn, req.get_subject())
req.set_pubkey(key)
req.sign(key, self.sigalg)
x509 = crypto.X509()
x509.set_version(0x02)
x509.set_serial_number(serial or random.getrandbits(64))
if validity is None or validity > 0:
x509.gmtime_adj_notBefore(0)
x509.gmtime_adj_notAfter(60 * 60 * 24 *
(validity or self.validity))
else:
x509.gmtime_adj_notBefore(60 * 60 * 24 * validity)
x509.gmtime_adj_notAfter(0)
x509.set_issuer(self.cacert.x509.get_subject())
x509.set_subject(req.get_subject())
x509.set_pubkey(req.get_pubkey())
extensions = [
crypto.X509Extension(b('subjectKeyIdentifier'),
False,
b('hash'),
subject=x509),
crypto.X509Extension(b('authorityKeyIdentifier'),
False,
b('keyid:always,issuer:always'),
issuer=self.cacert.x509),
crypto.X509Extension(
b('keyUsage'), False,
b('nonRepudiation, digitalSignature, keyEncipherment'))
]
subAltName = cert.getAlternativeName()
if subAltName:
extensions.append(
crypto.X509Extension(b('subjectAltName'), False,
b(subAltName)))
if self.cacert.getAlternativeName():
extensions.append(
crypto.X509Extension(b('issuerAltName'),
False,
b("issuer:copy"),
issuer=self.cacert.x509))
x509.add_extensions(extensions)
x509.sign(self.cacert.pkey, self.sigalg)
return cert.init(key, x509)
def __init__(self, *args, **kargs):
CertificateFactory.__init__(self, *args, **kargs)
if not self.parent:
self.keyalg = crypto.TYPE_RSA if self.keyalg == "rsa" else crypto.TYPE_DSA
self.cipher = "DES-EDE3-CBC" # Cipher used to encode the private key
if not self.cacert.exists():
# Generate the CA certificate
key = crypto.PKey()
key.generate_key(self.keyalg, self.keysize)
req = crypto.X509Req()
setSubject(self.cacert.dn, req.get_subject())
req.set_pubkey(key)
req.sign(key, self.sigalg)
x509 = crypto.X509()
x509.set_version(0x02)
x509.set_serial_number(random.getrandbits(64))
x509.gmtime_adj_notBefore(0)
x509.gmtime_adj_notAfter(60 * 60 * 24 * self.validity)
x509.set_subject(req.get_subject())
x509.set_pubkey(req.get_pubkey())
extensions = [
crypto.X509Extension(b('basicConstraints'), False, b('CA:true')),
crypto.X509Extension(b('subjectKeyIdentifier'), False, b('hash'), subject=x509),
]
subjectAltName = self.cacert.getAlternativeName()
if subjectAltName:
extensions.append(crypto.X509Extension(b('subjectAltName'), False, b(subjectAltName)))
if self.parent:
extensions.append(crypto.X509Extension(b('authorityKeyIdentifier'), False,
b('keyid:always,issuer:always'), issuer=self.parent.cacert.x509))
if self.parent.cacert.getAlternativeName():
extensions.append(crypto.X509Extension(b('issuerAltName'), False, b("issuer:copy"),
issuer=self.parent.cacert.x509))
x509.add_extensions(extensions)
if self.parent:
x509.set_issuer(self.parent.cacert.x509.get_subject())
x509.sign(self.parent.cacert.pkey, self.sigalg)
else:
x509.set_issuer(req.get_subject())
x509.sign(key, self.sigalg)
self.cacert.init(key, x509)
def saveKey(self, path, password=None):
if not opensslSupport:
raise RuntimeError("No openssl support, add openssl to your PATH to export private keys")
#
# Write password to safe temporary file
#
passpath = None
if password:
(f, passpath) = tempfile.mkstemp()
os.write(f, b(password))
os.close(f)
try:
pem = self.parent.run("openssl", "pkcs12", "-nocerts", "-nodes", "-in " + self.generatePKCS12(),
passin="file:" + self.parent.passpath,
passout=("file:" + passpath) if passpath else None)
(_, ext) = os.path.splitext(path)
outform = "DER" if ext == ".der" or ext == ".crt" or ext == ".cer" else "PEM"
self.parent.run("openssl", "pkcs8", "-nocrypt -topk8", outform=outform, out=path, stdin=pem)
finally:
if passpath:
os.remove(passpath)
return self
def savePKCS12(self,
path,
password=None,
chain=True,
root=False,
addkey=None):
if addkey is None:
addkey = self != self.parent.cacert
chainfile = None
if chain:
# Save the certificate chain to PKCS12
certs = ""
parent = self.parent
while parent if root else parent.parent:
certs += d(read(parent.cacert.pem))
parent = parent.parent
if len(certs) > 0:
(f, chainfile) = tempfile.mkstemp()
os.write(f, b(certs))
os.close(f)
key = "-inkey={0}".format(self.key) if addkey else "-nokeys"
try:
self.openSSL("pkcs12",
out=path,
inkey=self.key,
certfile=chainfile,
password=password or "password")
finally:
if chainfile:
os.remove(chainfile)
return self
def generateKEY(self):
if not os.path.exists(self.key):
write(
self.key,
crypto.dump_privatekey(crypto.FILETYPE_PEM, self.pkey,
self.parent.cipher,
b(self.parent.password)))
def saveKey(self, path, password=None):
if not opensslSupport:
raise RuntimeError("No openssl support, add openssl to your PATH to export private keys")
#
# Write password to safe temporary file
#
passpath = None
if password:
(f, passpath) = tempfile.mkstemp()
os.write(f, b(password))
os.close(f)
try:
pem = self.parent.run("openssl", "pkcs12", "-nocerts", "-nodes", "-in " + self.generatePKCS12(),
passin="file:" + self.parent.passpath,
passout=("file:" + passpath) if passpath else None)
(_, ext) = os.path.splitext(path)
outform = "DER" if ext == ".der" or ext == ".crt" or ext == ".cer" else "PEM"
self.parent.run("openssl", "pkcs8", "-nocrypt -topk8", outform=outform, out=path, stdin=pem)
finally:
if passpath:
os.remove(passpath)
return self
def savePKCS12(self, path, password=None, chain=True, root=False, addkey=None):
if addkey is None:
addkey = self != self.parent.cacert
p12 = crypto.PKCS12()
p12.set_certificate(self.x509)
p12.set_friendlyname(b(self.alias))
if addkey:
p12.set_privatekey(self.pkey)
if chain:
certs = []
parent = self.parent
while parent if root else parent.parent:
certs.append(parent.cacert.x509)
parent = parent.parent
p12.set_ca_certificates(certs)
write(path, p12.export(b(password or "password")))
return self
def saveKey(self, path, password=None):
(_, ext) = os.path.splitext(path)
type = crypto.FILETYPE_PEM
if ext == ".der" or ext == ".crt" or ext == ".cer":
type = crypto.FILETYPE_ASN1
if password:
write(path, crypto.dump_privatekey(type, self.pkey, self.parent.cipher, b(password)))
else:
write(path, crypto.dump_privatekey(type, self.pkey))
return self
def _generateChild(self, cert, serial, validity):
key = crypto.PKey()
key.generate_key(self.keyalg, self.keysize)
req = crypto.X509Req()
setSubject(cert.dn, req.get_subject())
req.set_pubkey(key)
req.sign(key, self.sigalg)
x509 = crypto.X509()
x509.set_version(0x02)
x509.set_serial_number(serial or random.getrandbits(64))
if validity is None or validity > 0:
x509.gmtime_adj_notBefore(0)
x509.gmtime_adj_notAfter(60 * 60 * 24 * (validity or self.validity))
else:
x509.gmtime_adj_notBefore(60 * 60 * 24 * validity)
x509.gmtime_adj_notAfter(0)
x509.set_issuer(self.cacert.x509.get_subject())
x509.set_subject(req.get_subject())
x509.set_pubkey(req.get_pubkey())
extensions = [
crypto.X509Extension(b('subjectKeyIdentifier'), False, b('hash'), subject=x509),
crypto.X509Extension(b('authorityKeyIdentifier'), False, b('keyid:always,issuer:always'),
issuer=self.cacert.x509),
crypto.X509Extension(b('keyUsage'), False, b('nonRepudiation, digitalSignature, keyEncipherment'))
]
subAltName = cert.getAlternativeName()
if subAltName:
extensions.append(crypto.X509Extension(b('subjectAltName'), False, b(subAltName)))
if self.cacert.getAlternativeName():
extensions.append(crypto.X509Extension(b('issuerAltName'), False, b("issuer:copy"),
issuer=self.cacert.x509))
x509.add_extensions(extensions)
x509.sign(self.cacert.pkey, self.sigalg)
return cert.init(key, x509)
def load(self):
cert = crypto.load_certificate(crypto.FILETYPE_PEM, read(self.pem))
key = crypto.load_privatekey(crypto.FILETYPE_PEM, read(self.key),
b(self.parent.password))
subject = cert.get_subject()
self.dn = DistinguishedName(subject.commonName,
subject.organizationalUnitName,
subject.organizationName,
subject.localityName,
subject.stateOrProvinceName,
subject.countryName, subject.emailAddress)
return self.init(key, cert)
def load(self):
cert = crypto.load_certificate(crypto.FILETYPE_PEM, read(self.pem))
key = crypto.load_privatekey(crypto.FILETYPE_PEM, read(self.key), b(self.parent.password))
subject = cert.get_subject()
self.dn = DistinguishedName(subject.commonName,
subject.organizationalUnitName,
subject.organizationName,
subject.localityName,
subject.stateOrProvinceName,
subject.countryName,
subject.emailAddress)
return self.init(key, cert)
def savePKCS12(self,
path,
password=None,
chain=True,
root=False,
addkey=None):
if addkey is None:
addkey = self != self.parent.cacert
p12 = crypto.PKCS12()
p12.set_certificate(self.x509)
p12.set_friendlyname(b(self.alias))
if addkey:
p12.set_privatekey(self.pkey)
if chain:
certs = []
parent = self.parent
while parent if root else parent.parent:
certs.append(parent.cacert.x509)
parent = parent.parent
p12.set_ca_certificates(certs)
write(path, p12.export(b(password or "password")))
return self
def saveKey(self, path, password=None):
(_, ext) = os.path.splitext(path)
type = crypto.FILETYPE_PEM
if ext == ".der" or ext == ".crt" or ext == ".cer":
type = crypto.FILETYPE_ASN1
if password:
write(
path,
crypto.dump_privatekey(type, self.pkey, self.parent.cipher,
b(password)))
else:
write(path, crypto.dump_privatekey(type, self.pkey))
return self
def savePKCS12(self, path, password=None, chain=True, root=False, addkey=None):
if addkey is None:
addkey = self != self.parent.cacert
chainfile = None
if chain:
# Save the certificate chain to PKCS12
certs = ""
parent = self.parent
while parent if root else parent.parent:
certs += d(read(parent.cacert.pem))
parent = parent.parent
if len(certs) > 0:
(f, chainfile) = tempfile.mkstemp()
os.write(f, b(certs))
os.close(f)
key = "-inkey={0}".format(self.key) if addkey else "-nokeys"
try:
self.openSSL("pkcs12", out=path, inkey=self.key, certfile=chainfile, password=password or "password")
finally:
if chainfile:
os.remove(chainfile)
return self
def openSSL(self, cmd, *args, **kargs):
command = "openssl {cmd}".format(cmd=cmd)
# Consume cert argument
cert = kargs.get("cert", None)
if cert: del kargs["cert"]
# Consume config/extfile arguments
tmpfiles = []
for a in ["config", "extfile"]:
data = kargs.get(a, None)
if data:
del kargs[a]
(f, path) = tempfile.mkstemp()
os.write(f, b(data))
os.close(f)
command += " -{a} {path}".format(a=a, path=path)
tmpfiles.append(path)
# Consume password argument
password = kargs.get("password", None)
if password: del kargs["password"]
#
# Write password to safe temporary file
#
passpath = None
if password:
(f, passpath) = tempfile.mkstemp()
os.write(f, b(password))
os.close(f)
tmpfiles.append(passpath)
#
# Key creation and certificate request parameters
#
if cmd == "req":
command += " -keyform PEM -keyout {cert.key} -newkey {this.keyalg}:{this.keyparams}"
if "-x509" in args:
command += " -out {cert.pem} -passout file:\"{this.passpath}\"" # CA self-signed certificate
else:
command += " -passout file:\"{this.passpath}\""
#
# Signature parameters for "req -x509" (CA self-signed certificate) or
# "x509 -req" (signing certificate request)
#
if (cmd == "req" and "-x509" in args) or (cmd == "x509"
and "-req" in args):
command += " -{this.sigalg}"
#
# Certificate request signature parameters
#
if cmd == "x509" and "-req" in args:
command += " -CA {cacert.pem} -CAkey {cacert.key} -passin file:\"{this.passpath}\" -extensions ext " \
"-out {cert.pem}"
#
# Export certificate parameters
#
if cmd == "x509" and not "-req" in args:
command += " -in {cert.pem}"
elif cmd == self.keyalg or cmd == "pkcs8":
command += " -in {cert.key} -passin file:\"{this.passpath}\""
if password:
command += " -passout file:\"{passpath}\""
elif cmd == "pkcs12":
command += " -in {cert.pem} -name {cert.alias} -export -passin file:\"{this.passpath}\""
command += " -passout file:\"{passpath}\""
command = command.format(cert=cert,
cacert=self.cacert,
this=self,
passpath=passpath)
try:
return self.run(command, *args, **kargs)
finally:
for f in tmpfiles: # Remove temporary configuration files
os.remove(f)
def __init__(self, *args, **kargs):
CertificateFactory.__init__(self, *args, **kargs)
if not self.parent:
self.keyalg = crypto.TYPE_RSA if self.keyalg == "rsa" else crypto.TYPE_DSA
self.cipher = "DES-EDE3-CBC" # Cipher used to encode the private key
if not self.cacert.exists():
# Generate the CA certificate
key = crypto.PKey()
key.generate_key(self.keyalg, self.keysize)
req = crypto.X509Req()
setSubject(self.cacert.dn, req.get_subject())
req.set_pubkey(key)
req.sign(key, self.sigalg)
x509 = crypto.X509()
x509.set_version(0x02)
x509.set_serial_number(random.getrandbits(64))
x509.gmtime_adj_notBefore(0)
x509.gmtime_adj_notAfter(60 * 60 * 24 * self.validity)
x509.set_subject(req.get_subject())
x509.set_pubkey(req.get_pubkey())
extensions = [
crypto.X509Extension(b('basicConstraints'), False,
b('CA:true')),
crypto.X509Extension(b('subjectKeyIdentifier'),
False,
b('hash'),
subject=x509),
]
subjectAltName = self.cacert.getAlternativeName()
if subjectAltName:
extensions.append(
crypto.X509Extension(b('subjectAltName'), False,
b(subjectAltName)))
if self.parent:
extensions.append(
crypto.X509Extension(b('authorityKeyIdentifier'),
False,
b('keyid:always,issuer:always'),
issuer=self.parent.cacert.x509))
if self.parent.cacert.getAlternativeName():
extensions.append(
crypto.X509Extension(b('issuerAltName'),
False,
b("issuer:copy"),
issuer=self.parent.cacert.x509))
x509.add_extensions(extensions)
if self.parent:
x509.set_issuer(self.parent.cacert.x509.get_subject())
x509.sign(self.parent.cacert.pkey, self.sigalg)
else:
x509.set_issuer(req.get_subject())
x509.sign(key, self.sigalg)
self.cacert.init(key, x509)
def generateKEY(self):
if not os.path.exists(self.key):
write(self.key, crypto.dump_privatekey(crypto.FILETYPE_PEM, self.pkey, self.parent.cipher,
b(self.parent.password)))
def openSSL(self, cmd, *args, **kargs):
command = "openssl {cmd}".format(cmd = cmd)
# Consume cert argument
cert = kargs.get("cert", None)
if cert: del kargs["cert"]
# Consume config/extfile arguments
tmpfiles = []
for a in ["config", "extfile"]:
data = kargs.get(a, None)
if data:
del kargs[a]
(f, path) = tempfile.mkstemp()
os.write(f, b(data))
os.close(f)
command += " -{a} {path}".format(a=a, path=path)
tmpfiles.append(path)
# Consume password argument
password = kargs.get("password", None)
if password: del kargs["password"]
#
# Write password to safe temporary file
#
passpath = None
if password:
(f, passpath) = tempfile.mkstemp()
os.write(f, b(password))
os.close(f)
tmpfiles.append(passpath)
#
# Key creation and certificate request parameters
#
if cmd == "req":
command += " -keyform PEM -keyout {cert.key} -newkey {this.keyalg}:{this.keysize}"
if "-x509" in args:
command += " -out {cert.pem} -passout file:\"{this.passpath}\"" # CA self-signed certificate
else:
command += " -passout file:\"{this.passpath}\""
#
# Signature parameters for "req -x509" (CA self-signed certificate) or
# "x509 -req" (signing certificate request)
#
if (cmd == "req" and "-x509" in args) or (cmd == "x509" and "-req" in args):
command += " -{this.sigalg}"
#
# Certificate request signature parameters
#
if cmd == "x509" and "-req" in args:
command += " -CA {cacert.pem} -CAkey {cacert.key} -passin file:\"{this.passpath}\" -extensions ext " \
"-out {cert.pem}"
#
# Export certificate parameters
#
if cmd == "x509" and not "-req" in args:
command += " -in {cert.pem}"
elif cmd == self.keyalg or cmd == "pkcs8":
command += " -in {cert.key} -passin file:\"{this.passpath}\""
if password:
command += " -passout file:\"{passpath}\""
elif cmd == "pkcs12":
command += " -in {cert.pem} -name {cert.alias} -export -passin file:\"{this.passpath}\""
command += " -passout file:\"{passpath}\""
command = command.format(cert = cert, cacert = self.cacert, this = self, passpath=passpath)
try:
return self.run(command, *args, **kargs)
finally:
for f in tmpfiles: # Remove temporary configuration files
os.remove(f)
