pfx.java

来自「《移动Agent技术》一书的所有章节源代码。」· Java 代码 · 共 70 行

package org.bouncycastle.asn1.pkcs;

import java.io.*;
import java.math.BigInteger;

import org.bouncycastle.asn1.*;
import org.bouncycastle.asn1.util.*;

import org.bouncycastle.util.encoders.*;

/**
 * the infamous Pfx from PKCS12
 */
public class Pfx
    implements DEREncodable, PKCSObjectIdentifiers
{
	private ContentInfo             contentInfo;
	private MacData					macData = null;

	public Pfx(
		DERConstructedSequence	seq)
	{
        BigInteger  version = ((DERInteger)seq.getObjectAt(0)).getValue();
        if (version.intValue() != 3)
        {
            throw new IllegalArgumentException("wrong version for PFX PDU");
        }

        contentInfo = new ContentInfo((DERConstructedSequence)seq.getObjectAt(1));

		if (seq.getSize() == 3)
		{
			macData = new MacData((DERConstructedSequence)seq.getObjectAt(2));
		}
	}

    public Pfx(
        ContentInfo     contentInfo,
        MacData         macData)
    {
        this.contentInfo = contentInfo;
        this.macData = macData;
    }

	public ContentInfo getAuthSafe()
	{
		return contentInfo;
	}

	public MacData getMacData()
	{
		return macData;
	}

    public DERObject getDERObject()
    {
        BERConstructedSequence   seq = new BERConstructedSequence();

        seq.addObject(new DERInteger(3));
        seq.addObject(contentInfo);

        if (macData != null)
        {
            seq.addObject(macData);
        }

        return seq;
    }
}