Python x509.load_der_x509_certificate方法代碼示例

# 需要導入模塊: from cryptography import x509 [as 別名]
# 或者: from cryptography.x509 import load_der_x509_certificate [as 別名]
def validate(self, authenticator_data, rp_id_hash, client_data_hash):
        # See https://www.w3.org/TR/webauthn/#fido-u2f-attestation, "Verification procedure"
        credential = authenticator_data.credential
        public_key_u2f = b'\x04' + credential.public_key.x + credential.public_key.y
        verification_data = b'\x00' + rp_id_hash + client_data_hash + credential.id + public_key_u2f
        assert len(credential.public_key.x) == 32
        assert len(credential.public_key.y) == 32
        self.cert_public_key.verify(self.signature, verification_data, ec.ECDSA(hashes.SHA256()))
        key_id = x509.SubjectKeyIdentifier.from_public_key(self.cert_public_key).digest.hex()
        att_root_cert_chain = self.metadata_for_key_id(key_id)["attestationRootCertificates"]

        # TODO: implement full cert chain validation
        # See https://cryptography.io/en/latest/x509/reference/#cryptography.x509.Certificate.tbs_certificate_bytes
        # See https://github.com/pyca/cryptography/issues/2381
        # See https://github.com/wbond/certvalidator
        assert len(att_root_cert_chain) == 1
        att_root_cert = x509.load_der_x509_certificate(att_root_cert_chain[0].encode(),
                                                       cryptography.hazmat.backends.default_backend())
        att_root_cert.public_key().verify(self.att_cert.signature,
                                          self.att_cert.tbs_certificate_bytes,
                                          padding.PKCS1v15(),
                                          self.att_cert.signature_hash_algorithm)
        return self.validated_attestation(type="Basic", trust_path="x5c", credential=credential) 

# 需要導入模塊: from cryptography import x509 [as 別名]
# 或者: from cryptography.x509 import load_der_x509_certificate [as 別名]
def request_cert(self, builder, **kwargs):
        """Send CSR and request certificate
        """
        signed = self._sign_csr(builder)
        csr_pem = signed.public_bytes(serialization.Encoding.PEM)
        if not isinstance(csr_pem, six.text_type):
            csr_pem = csr_pem.decode('ascii')

        response = self._cert_request(csr_pem, **kwargs)

        if self.plugin.chain:
            certs = tuple(
                x509.load_der_x509_certificate(cert, self.backend)
                for cert in response[u'result'][u'certificate_chain']
            )
        else:
            # certificate is just base64 without BEGIN/END certificate
            cert = base64.b64decode(response[u'result'][u'certificate'])
            certs = (x509.load_der_x509_certificate(cert, self.backend), )

        pem = [self._dump_privkey(self._privkey)]
        pem.extend(self._dump_cert(cert) for cert in certs)
        return response, '\n'.join(pem) 

# 需要導入模塊: from cryptography import x509 [as 別名]
# 或者: from cryptography.x509 import load_der_x509_certificate [as 別名]
def _process_pkcs7_substrate(substrate):
    contentInfo, _ = der_decoder.decode(substrate,
                                        asn1Spec=rfc2315.ContentInfo())

    contentType = contentInfo.getComponentByName('contentType')

    if contentType != rfc2315.signedData:
        raise Exception

    content, _ = der_decoder.decode(
        contentInfo.getComponentByName('content'),
        asn1Spec=rfc2315.SignedData())

    for blob in content.getComponentByName('certificates'):
        cert = x509.load_der_x509_certificate(der_encoder.encode(blob),
                                              backends.default_backend())
        print(cert.public_bytes(
            encoding=serialization.Encoding.PEM).decode(
            'unicode_escape'), end='')


# Main program code 

# 需要導入模塊: from cryptography import x509 [as 別名]
# 或者: from cryptography.x509 import load_der_x509_certificate [as 別名]
def test_xmldsig_interop_TR2012(self):
        def get_x509_cert(**kwargs):
            from cryptography.x509 import load_der_x509_certificate
            from OpenSSL.crypto import X509
            with open(os.path.join(interop_dir, "TR2012", "rsa-cert.der"), "rb") as fh:
                return [X509.from_cryptography(load_der_x509_certificate(fh.read(), backend=default_backend()))]

        signature_files = glob(os.path.join(interop_dir, "TR2012", "signature*.xml"))
        for signature_file in signature_files:
            print("Verifying", signature_file)
            with open(signature_file, "rb") as fh:
                try:
                    sig = fh.read()
                    XMLVerifier().verify(sig, require_x509=False, hmac_key="testkey", validate_schema=True,
                                         cert_resolver=get_x509_cert if "x509digest" in signature_file else None)
                    decoded_sig = sig.decode("utf-8")
                except Exception as e:
                    if "keyinforeference" in signature_file:
                        print("Unsupported test case:", type(e), e)
                    elif "x509digest" in signature_file:
                        assert isinstance(e, InvalidCertificate)
                    else:
                        raise 

# 需要導入模塊: from cryptography import x509 [as 別名]
# 或者: from cryptography.x509 import load_der_x509_certificate [as 別名]
def handle(self, pub, **options):
        pub_data = pub.read()

        try:  # close reader objects (otherwise we get a ResourceWarning)
            pub.close()
        except Exception:  # pragma: no cover
            pass

        # load public key
        try:
            pub_loaded = x509.load_pem_x509_certificate(pub_data, default_backend())
        except Exception:
            try:
                pub_loaded = x509.load_der_x509_certificate(pub_data, default_backend())
            except Exception:
                raise CommandError('Unable to load public key.')

        cert = Certificate(ca=options['ca'])
        cert.x509 = pub_loaded
        cert.save() 

# 需要導入模塊: from cryptography import x509 [as 別名]
# 或者: from cryptography.x509 import load_der_x509_certificate [as 別名]
def _load_pub(data):
    basedir = data.get('basedir', settings.FIXTURES_DIR)
    path = os.path.join(basedir, data['pub_filename'])

    with open(path, 'rb') as stream:
        pem = stream.read().replace(b'\r\n', b'\n')

    pub_data = {
        'pem': pem.decode('utf-8'),
        'parsed': x509.load_pem_x509_certificate(pem, default_backend()),
    }

    if data.get('pub_der_filename'):
        der_path = os.path.join(basedir, data['pub_der_filename'])
        with open(der_path, 'rb') as stream:
            der = stream.read().replace(b'\r\n', b'\n')
        pub_data['der'] = der
        # Failes for alt-extensions since alternative AKI was added
        #pub_data['der_parsed'] = x509.load_der_x509_certificate(der, default_backend()),

    return pub_data 

# 需要導入模塊: from cryptography import x509 [as 別名]
# 或者: from cryptography.x509 import load_der_x509_certificate [as 別名]
def test_BackuprKey_BACKUPKEY_RETRIEVE_BACKUP_KEY_GUID(self):
        dce, rpctransport = self.connect()
        request = bkrp.BackuprKey()
        request['pguidActionAgent'] = bkrp.BACKUPKEY_RETRIEVE_BACKUP_KEY_GUID
        request['pDataIn'] = NULL
        request['cbDataIn'] = 0
        request['dwParam'] = 0

        resp = dce.request(request)

        resp.dump()

        #print "LEN: %d" % len(''.join(resp['ppDataOut']))
        #hexdump(''.join(resp['ppDataOut']))

        cert = x509.load_der_x509_certificate(b''.join(resp['ppDataOut']), default_backend())

        print(cert.subject)
        print(cert.issuer)
        print(cert.signature) 

# 需要導入模塊: from cryptography import x509 [as 別名]
# 或者: from cryptography.x509 import load_der_x509_certificate [as 別名]
def test_hBackuprKey_BACKUPKEY_RETRIEVE_BACKUP_KEY_GUID(self):
        dce, rpctransport = self.connect()
        request = bkrp.BackuprKey()
        request['pguidActionAgent'] = bkrp.BACKUPKEY_RETRIEVE_BACKUP_KEY_GUID
        request['pDataIn'] = NULL
        request['cbDataIn'] = 0
        request['dwParam'] = 0

        resp = bkrp.hBackuprKey(dce, bkrp.BACKUPKEY_RETRIEVE_BACKUP_KEY_GUID, NULL)

        resp.dump()

        #print "LEN: %d" % len(''.join(resp['ppDataOut']))
        #hexdump(''.join(resp['ppDataOut']))

        cert = x509.load_der_x509_certificate(b''.join(resp['ppDataOut']), default_backend())

        print(cert.subject)
        print(cert.issuer)
        print(cert.signature) 

# 需要導入模塊: from cryptography import x509 [as 別名]
# 或者: from cryptography.x509 import load_der_x509_certificate [as 別名]
def __init__(self, data):
        """
        Cert constructor

        It can handle PEM and DER encoded strings and lists of int bytes.

        :param data: bytes or list of int
        """
        if type(data) == list:
            data = bytes(data)
        if type(data) != bytes:
            raise Exception("data must be bytes or list of int bytes")
        self.__raw_data = data
        if b"-----BEGIN CERTIFICATE-----" in data:
            self.x509 = x509.load_pem_x509_certificate(data, backends.default_backend())
            self.__raw_type = "PEM"
        else:
            self.x509 = x509.load_der_x509_certificate(data, backends.default_backend())
            self.__raw_type = "DER" 

# 需要導入模塊: from cryptography import x509 [as 別名]
# 或者: from cryptography.x509 import load_der_x509_certificate [as 別名]
def fqdns_from_certificate(cert_data):

    try:
        cert = x509.load_pem_x509_certificate(cert_data, default_backend())
    except ValueError:
        pass

    try:
        cert = x509.load_der_x509_certificate(cert_data, default_backend())
    except ValueError:
        raise ValueError("No recognized cert format. Allowed: PEM or DER")

    names = set()
    names.add(cert.subject.get_attributes_for_oid(NameOID.COMMON_NAME)[0].value.lower().rstrip('.'))

    try:
        alt_names = cert.extensions.get_extension_for_class(x509.SubjectAlternativeName)
    except x509.extensions.ExtensionNotFound:
        alt_names = None

    if alt_names:
        for alt_name in alt_names.value.get_values_for_type(x509.DNSName):
            names.add(alt_name.lower().rstrip('.'))

    return list(sorted(names)) 

# 需要導入模塊: from cryptography import x509 [as 別名]
# 或者: from cryptography.x509 import load_der_x509_certificate [as 別名]
def cert_get_names(cert_data):

    try:
        cert = x509.load_pem_x509_certificate(cert_data, default_backend())
    except ValueError:
        pass

    try:
        cert = x509.load_der_x509_certificate(cert_data, default_backend())
    except ValueError:
        raise ValueError("No recognized cert format. Allowed: PEM or DER")

    names = set()
    names.add(cert.subject.get_attributes_for_oid(NameOID.COMMON_NAME)[0].value.lower())

    try:
        alt_names = cert.extensions.get_extension_for_class(x509.SubjectAlternativeName)
    except x509.extensions.ExtensionNotFound:
        alt_names = None

    if alt_names:
        for alt_name in alt_names.value.get_values_for_type(x509.DNSName):
            names.add(alt_name.lower())

    return list(sorted(names)) 

# 需要導入模塊: from cryptography import x509 [as 別名]
# 或者: from cryptography.x509 import load_der_x509_certificate [as 別名]
def metadata_toc(self):
        if self._metadata_toc is None:
            res = requests.get(self.mds_url)
            res.raise_for_status()
            jwt_header = jwt.get_unverified_header(res.content)
            assert jwt_header["alg"] == "ES256"
            cert = x509.load_der_x509_certificate(jwt_header["x5c"][0].encode(),
                                                  cryptography.hazmat.backends.default_backend())
            self._metadata_toc = jwt.decode(res.content, key=cert.public_key(), algorithms=["ES256"])
        return self._metadata_toc 

# 需要導入模塊: from cryptography import x509 [as 別名]
# 或者: from cryptography.x509 import load_der_x509_certificate [as 別名]
def __init__(self, att_stmt):
        self.att_stmt = att_stmt
        assert len(self.att_stmt["x5c"]) == 1
        der_cert = att_stmt["x5c"][0]
        self.att_cert = x509.load_der_x509_certificate(der_cert, cryptography.hazmat.backends.default_backend())
        self.cert_public_key = self.att_cert.public_key()
        self.signature = att_stmt["sig"] 

# 需要導入模塊: from cryptography import x509 [as 別名]
# 或者: from cryptography.x509 import load_der_x509_certificate [as 別名]
def _get_normalized_payload(self, encoded_bytes, secret_type):
        """Normalizes the bytes of the object.

        Barbican expects certificates, public keys, and private keys in PEM
        format, but Castellan expects these objects to be DER encoded bytes
        instead.
        """
        if secret_type == 'public':
            key = serialization.load_der_public_key(
                encoded_bytes,
                backend=backends.default_backend())
            return key.public_bytes(
                encoding=serialization.Encoding.PEM,
                format=serialization.PublicFormat.SubjectPublicKeyInfo)
        elif secret_type == 'private':
            key = serialization.load_der_private_key(
                encoded_bytes,
                backend=backends.default_backend(),
                password=None)
            return key.private_bytes(
                encoding=serialization.Encoding.PEM,
                format=serialization.PrivateFormat.PKCS8,
                encryption_algorithm=serialization.NoEncryption())
        elif secret_type == 'certificate':
            cert = cryptography_x509.load_der_x509_certificate(
                encoded_bytes,
                backend=backends.default_backend())
            return cert.public_bytes(encoding=serialization.Encoding.PEM)
        else:
            return encoded_bytes 

# 需要導入模塊: from cryptography import x509 [as 別名]
# 或者: from cryptography.x509 import load_der_x509_certificate [as 別名]
def scan(self, offset=0, maxlen=None):
        for hit in super(CertScanner, self).scan(offset=offset, maxlen=maxlen):
            signature = self.address_space.read(hit + 4, 3)
            size = self.profile.Object(
                "unsigned be short", offset=hit+2, vm=self.address_space)
            description = None

            if signature.startswith(b"\x30\x82"):
                data = self.address_space.read(hit, size + 4)
                if x509:
                    try:
                        cert = x509.load_der_x509_certificate(data, default_backend())
                        description = dict((
                            attr.oid._name, attr.value) for attr in cert.subject)
                    except Exception:
                        pass

                yield hit, "X509", data, description

            elif signature.startswith(b"\x02\x01\x00"):
                data = self.address_space.read(hit, size + 4)
                if x509:
                    try:
                        pem = (b"-----BEGIN RSA PRIVATE KEY-----\n" +
                               base64.b64encode(data) +
                               b"-----END RSA PRIVATE KEY-----")
                        key = serialization.load_pem_private_key(
                            pem, password=None, backend=default_backend())
                        description = ""
                    except Exception:
                        pass

                yield hit, "RSA", data, description