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The Bouncy Castle Java APIs for the OpenPGP Protocol. The APIs are designed primarily to be used in conjunction with the BC LTS provider but may also be used with other providers providing cryptographic services.

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package org.bouncycastle.bcpg;

import java.io.IOException;

import org.bouncycastle.util.Arrays;
import org.bouncycastle.util.Strings;

/**
 * Basic type for a user ID packet.
 */
public class UserIDPacket 
    extends ContainedPacket
    implements UserDataPacket
{    
    private byte[]    idData;

    public UserIDPacket(
            BCPGInputStream  in)
            throws IOException
    {
        this(in, false);
    }

    public UserIDPacket(
        BCPGInputStream  in,
        boolean newPacketFormat)
        throws IOException
    {
        super(USER_ID, newPacketFormat);

        this.idData = in.readAll();
    }

    public UserIDPacket(
        String    id)
    {
        super(USER_ID);

        this.idData = Strings.toUTF8ByteArray(id);
    }

    public UserIDPacket(byte[] rawID)
    {
        super(USER_ID);

        this.idData = Arrays.clone(rawID);
    }

    public String getID()
    {
        return Strings.fromUTF8ByteArray(idData);
    }

    public byte[] getRawID()
    {
        return Arrays.clone(idData);
    }

    public boolean equals(Object o)
    {
        if (o instanceof UserIDPacket)
        {
            return Arrays.areEqual(this.idData, ((UserIDPacket)o).idData);
        }

        return false;
    }

    public int hashCode()
    {
        return Arrays.hashCode(this.idData);
    }

    public void encode(
        BCPGOutputStream    out)
        throws IOException
    {
        out.writePacket(hasNewPacketFormat(), USER_ID, idData);
    }
}