/*
* Copyright 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package java.security.cert;
import java.io.IOException;
import java.io.OutputStream;
/**
* The Extension part of an X.509 certificate (as specified in <a
* href="http://www.ietf.org/rfc/rfc3280.txt">RFC 3280 — Internet X.509
* Public Key Infrastructure: Certificate and Certificate Revocation List (CRL)
* Profile</p>):
*
* <pre>
* Extension ::= SEQUENCE {
* extnID OBJECT IDENTIFIER,
* critical BOOLEAN DEFAULT FALSE,
* extnValue OCTET STRING
* }
* </pre>
*
* @since 1.7
* @hide
*/
public interface Extension {
/**
* Returns the OID (Object Identifier) for this extension encoded as a
* string (e.g., "2.5.29.15").
*/
String getId();
/**
* Returns {@code true} if this extension is critical. If this is true and
* an implementation does not understand this extension, it must reject it.
* See RFC 3280 section 4.2 for more information.
*/
boolean isCritical();
/**
* The DER-encoded value of this extension.
*/
byte[] getValue();
/**
* Writes the DER-encoded extension to {@code out}.
*
* @throws IOException when there is an encoding error or error writing to
* {@code out}
*/
void encode(OutputStream out) throws IOException;
}