org.spongycastle.asn1.BERSet Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of core Show documentation

Spongy Castle is a package-rename (org.bouncycastle.* to org.spongycastle.*) of Bouncy Castle intended for the Android platform. Android unfortunately ships with a stripped-down version of Bouncy Castle, which prevents easy upgrades - Spongy Castle overcomes this and provides a full, up-to-date version of the Bouncy Castle cryptographic libs.

There is a newer version: 1.58.0.0

Show newest version

package org.spongycastle.asn1;

import java.io.IOException;
import java.util.Enumeration;

/**
 * Carrier class for an indefinite-length SET.
 */
public class BERSet
    extends ASN1Set
{
    /**
     * Create an empty SET.
     */
    public BERSet()
    {
    }

    /**
     * Create a SET containing one object.
     *
     * @param obj - a single object that makes up the set.
     */
    public BERSet(
        ASN1Encodable obj)
    {
        super(obj);
    }

    /**
     * Create a SET containing multiple objects.
     * @param v a vector of objects making up the set.
     */
    public BERSet(
        ASN1EncodableVector v)
    {
        super(v, false);
    }

    /**
     * Create a SET from an array of objects.
     * @param a an array of ASN.1 objects.
     */
    public BERSet(
        ASN1Encodable[]   a)
    {
        super(a, false);
    }

    int encodedLength()
        throws IOException
    {
        int length = 0;
        for (Enumeration e = getObjects(); e.hasMoreElements();)
        {
            length += ((ASN1Encodable)e.nextElement()).toASN1Primitive().encodedLength();
        }

        return 2 + length + 2;
    }

    void encode(
        ASN1OutputStream out)
        throws IOException
    {
        out.write(BERTags.SET | BERTags.CONSTRUCTED);
        out.write(0x80);

        Enumeration e = getObjects();
        while (e.hasMoreElements())
        {
            out.writeObject((ASN1Encodable)e.nextElement());
        }

        out.write(0x00);
        out.write(0x00);
    }
}