algorithmidentifier.java

来自「一个非常好的ssh客户端实现」· Java 代码 · 共 46 行

/******************************************************************************
 *
 * Copyright (c) 1999-2003 AppGate Network Security AB. All Rights Reserved.
 * 
 * This file contains Original Code and/or Modifications of Original Code as
 * defined in and that are subject to the MindTerm Public Source License,
 * Version 2.0, (the 'License'). You may not use this file except in compliance
 * with the License.
 * 
 * You should have received a copy of the MindTerm Public Source License
 * along with this software; see the file LICENSE.  If not, write to
 * AppGate Network Security AB, Otterhallegatan 2, SE-41118 Goteborg, SWEDEN
 *
 *****************************************************************************/

package com.mindbright.security.x509;

import com.mindbright.asn1.ASN1Sequence;
import com.mindbright.asn1.ASN1OID;
import com.mindbright.asn1.ASN1OIDRegistry;
import com.mindbright.asn1.ASN1AnyDefinedBy;

public class AlgorithmIdentifier extends ASN1Sequence {

    public ASN1OID          algorithm;
    public ASN1AnyDefinedBy parameters;

    public AlgorithmIdentifier() {
	algorithm  = new ASN1OID();
	parameters = new ASN1AnyDefinedBy(algorithm, true);
	addComponent(algorithm);
	addOptional(parameters);
    }

    public String algorithmName() {
	String oid  = algorithm.getString();
	String name = ASN1OIDRegistry.lookupName(oid);
	if(name == null) {
	    name = oid;
	}
	return name;
    }

}