22     cert = None  variable in Certificate
24     def __init__(self, cert, key):  argument
25         self.cert = cert
29         return crypto.dump_certificate(crypto.FILETYPE_PEM, self.cert)
47             cert = crypto.load_certificate(crypto.FILETYPE_PEM, data)
49             return Certificate(cert, key)
59         cert = crypto.X509()
60         cert.set_pubkey(key)
61         cert.set_version(2)
62         cert.set_serial_number(random.randint(0, 2**20))
64         cert.set_notBefore(notBefore)
65         cert.set_notAfter(notAfter)
66         cert.get_subject().CN = cn
67         cert.set_issuer(cert.get_subject() if issuer is None else issuer.cert.get_subject())
70         cert.add_extensions([basicContraints])
72             cert.add_extensions(additional_extensions)
75         cert.sign(signing_key, digest)
77         return Certificate(cert, key)