micheader.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:   MicHeader.java

package jit.asn1.spkm;

import java.util.Enumeration;
import jit.asn1.*;
import jit.asn1.x509.AlgorithmIdentifier;

// Referenced classes of package jit.asn1.spkm:
//            SeqNum

public class MicHeader
    implements DEREncodable
{

    public DERInteger tokID;
    public DERBitString contextID;
    public AlgorithmIdentifier intAlg;
    public SeqNum sndSeq;

    public MicHeader()
    {
        tokID = null;
        contextID = null;
        intAlg = null;
        sndSeq = null;
    }

    public MicHeader(ASN1Sequence seq)
    {
        tokID = null;
        contextID = null;
        intAlg = null;
        sndSeq = null;
        if(seq.size() < 2)
            throw new IllegalArgumentException("construct MicHeader error: wrong size of MicHeader sequence");
        Enumeration e = seq.getObjects();
        tokID = DERInteger.getInstance(e.nextElement());
        contextID = DERBitString.getInstance(e.nextElement());
        do
        {
            if(!e.hasMoreElements())
                break;
            ASN1TaggedObject taggedObj = (ASN1TaggedObject)e.nextElement();
            int tag = taggedObj.getTagNo();
            switch(tag)
            {
            case 0: // '\0'
                intAlg = AlgorithmIdentifier.getInstance(taggedObj, true);
                break;

            case 1: // '\001'
                sndSeq = SeqNum.getInstance(taggedObj, true);
                break;

            default:
                throw new IllegalArgumentException("unknown tag in MicHeader sequence");
            }
        } while(true);
    }

    public void setTokID(DERInteger tokID)
    {
        this.tokID = tokID;
    }

    public DERInteger getTokID()
    {
        return tokID;
    }

    public void setContextID(DERBitString contextID)
    {
        this.contextID = contextID;
    }

    public DERBitString getContextID()
    {
        return contextID;
    }

    public void setIntAlg(AlgorithmIdentifier intAlg)
    {
        this.intAlg = intAlg;
    }

    public AlgorithmIdentifier getIntAlg()
    {
        return intAlg;
    }

    public void setSndSeq(SeqNum sndSeq)
    {
        this.sndSeq = sndSeq;
    }

    public SeqNum getSndSeq()
    {
        return sndSeq;
    }

    public static MicHeader getInstance(Object obj)
    {
        if(obj instanceof MicHeader)
            return (MicHeader)obj;
        if(obj instanceof ASN1Sequence)
            return new MicHeader((ASN1Sequence)obj);
        else
            throw new IllegalArgumentException("unknown object in factory: ".concat(String.valueOf(String.valueOf(obj.getClass().getName()))));
    }

    public static MicHeader getInstance(ASN1TaggedObject tagObj, boolean explicit)
    {
        return getInstance(ASN1Sequence.getInstance(tagObj, explicit));
    }

    public DERObject getDERObject()
    {
        ASN1EncodableVector v = new ASN1EncodableVector();
        v.add(tokID);
        v.add(contextID);
        if(intAlg != null)
            v.add(new DERTaggedObject(0, intAlg));
        if(sndSeq != null)
            v.add(new DERTaggedObject(1, sndSeq));
        return new DERSequence(v);
    }
}