dertaggedobject.java

来自「进行与数字证书相关开发必须的java源码」· Java 代码 · 共 59 行

// 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:   DERTaggedObject.java

package jit.asn1;

import java.io.ByteArrayOutputStream;
import java.io.IOException;

// Referenced classes of package jit.asn1:
//            ASN1TaggedObject, DERSequence, DEROutputStream, DEREncodable

public class DERTaggedObject extends ASN1TaggedObject
{

    public DERTaggedObject(int tagNo, DEREncodable obj)
    {
        super(tagNo, obj);
    }

    public DERTaggedObject(boolean explicit, int tagNo, DEREncodable obj)
    {
        super(explicit, tagNo, obj);
    }

    public DERTaggedObject(int tagNo)
    {
        super(false, tagNo, new DERSequence());
    }

    void encode(DEROutputStream out)
        throws IOException
    {
        if(!empty)
        {
            ByteArrayOutputStream bOut = new ByteArrayOutputStream();
            DEROutputStream dOut = new DEROutputStream(bOut);
            dOut.writeObject(obj);
            dOut.close();
            byte bytes[] = bOut.toByteArray();
            if(explicit)
            {
                out.writeEncoded(0xa0 | tagNo, bytes);
            } else
            {
                if((bytes[0] & 0x20) != 0)
                    bytes[0] = (byte)(0xa0 | tagNo);
                else
                    bytes[0] = (byte)(0x80 | tagNo);
                out.write(bytes);
            }
        } else
        {
            out.writeEncoded(0xa0 | tagNo, new byte[0]);
        }
    }
}