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The Bouncy Castle Java APIs for CMS, PKCS, EAC, TSP, CMP, CRMF, OCSP, and certificate generation. The APIs are designed primarily to be used in conjunction with the BC FIPS provider. The APIs may also be used with other providers although if being used in a FIPS context it is the responsibility of the user to ensure that any other providers used are FIPS certified.

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package org.bouncycastle.cms;

import org.bouncycastle.util.Arrays;

public class KEKRecipientId
    extends RecipientId
{
    private byte[] keyIdentifier;

    /**
     * Construct a recipient ID with the key identifier of a KEK recipient.
     *
     * @param keyIdentifier a subjectKeyId
     */
    public KEKRecipientId(byte[] keyIdentifier)
    {
        super(kek);

        this.keyIdentifier = keyIdentifier;
    }

    public int hashCode()
    {
        return Arrays.hashCode(keyIdentifier);
    }

    public boolean equals(
        Object o)
    {
        if (!(o instanceof KEKRecipientId))
        {
            return false;
        }

        KEKRecipientId id = (KEKRecipientId)o;

        return Arrays.areEqual(keyIdentifier, id.keyIdentifier);
    }

    public byte[] getKeyIdentifier()
    {
        return Arrays.clone(keyIdentifier);
    }

    public Object clone()
    {
        return new KEKRecipientId(keyIdentifier);
    }

    public boolean match(Object obj)
    {
        if (obj instanceof byte[])
        {
            return Arrays.areEqual(keyIdentifier, (byte[])obj);
        }
        else if (obj instanceof KEKRecipientInformation)
        {
            return ((KEKRecipientInformation)obj).getRID().equals(this);
        }

        return false;
    }
}