extendedkeyusage.java

进行与数字证书相关开发必须的java源码

// Decompiled by Jad v1.5.7g. Copyright 2000 Pavel Kouznetsov.
// Jad home page: http://www.geocities.com/SiliconValley/Bridge/8617/jad.html
// Decompiler options: packimports(3) fieldsfirst ansi 
// Source File Name:   ExtendedKeyUsage.java

package jit.asn1.x509;

import java.util.Enumeration;
import java.util.Vector;
import jit.asn1.*;

// Referenced classes of package jit.asn1.x509:
//            KeyPurposeId

public class ExtendedKeyUsage
    implements DEREncodable
{

    Vector usageVector;
    ASN1Sequence seq;

    public static ExtendedKeyUsage getInstance(ASN1TaggedObject obj, boolean explicit)
    {
        return getInstance(ASN1Sequence.getInstance(obj, explicit));
    }

    public static ExtendedKeyUsage getInstance(Object obj)
    {
        if(obj == null || (obj instanceof ExtendedKeyUsage))
            return (ExtendedKeyUsage)obj;
        if(obj instanceof ASN1Sequence)
            return new ExtendedKeyUsage((ASN1Sequence)obj);
        else
            throw new IllegalArgumentException("Invalid ExtendedKeyUsage: ".concat(String.valueOf(String.valueOf(obj.getClass().getName()))));
    }

    public ExtendedKeyUsage(ASN1Sequence seq)
    {
        usageVector = new Vector();
        this.seq = seq;
        Object o;
        for(Enumeration e = seq.getObjects(); e.hasMoreElements(); usageVector.add(o))
            o = e.nextElement();

    }

    public ExtendedKeyUsage(Vector usages)
    {
        usageVector = new Vector();
        ASN1EncodableVector v = new ASN1EncodableVector();
        DERObject o;
        for(Enumeration e = usages.elements(); e.hasMoreElements(); usageVector.add(o))
        {
            o = (DERObject)e.nextElement();
            v.add(o);
        }

        seq = new DERSequence(v);
    }

    public boolean hasKeyPurposeId(KeyPurposeId keyPurposeId)
    {
        for(int i = 0; i < usageVector.size(); i++)
        {
            DERObject o = (DERObject)usageVector.elementAt(i);
            if(o.equals(keyPurposeId))
                return true;
        }

        return false;
    }

    public DERObject getDERObject()
    {
        return seq;
    }

    public Vector getKeyUsage()
    {
        return usageVector;
    }
}