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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.

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package org.spongycastle.tls;

import org.spongycastle.util.Arrays;
import org.spongycastle.util.Strings;

/**
 * A basic PSK Identity holder.
 */
public class BasicTlsPSKIdentity
    implements TlsPSKIdentity
{
    protected byte[] identity;
    protected byte[] psk;

    public BasicTlsPSKIdentity(byte[] identity, byte[] psk)
    {
        this.identity = Arrays.clone(identity);
        this.psk = Arrays.clone(psk);
    }

    public BasicTlsPSKIdentity(String identity, byte[] psk)
    {
        this.identity = Strings.toUTF8ByteArray(identity);
        this.psk = Arrays.clone(psk);
    }

    public void skipIdentityHint()
    {
    }

    public void notifyIdentityHint(byte[] psk_identity_hint)
    {
    }

    public byte[] getPSKIdentity()
    {
        return identity;
    }

    public byte[] getPSK()
    {
        return psk;
    }

}