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The Bouncy Castle Java APIs for the TLS, including a JSSE provider. 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 and used appropriately.

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package org.bouncycastle.tls.crypto.impl;

import org.bouncycastle.tls.crypto.TlsCrypto;
import org.bouncycastle.tls.crypto.TlsSecret;

/**
 * Base class for a TlsCrypto implementation that provides some needed methods from elsewhere in the impl package.
 */
public abstract class AbstractTlsCrypto
    implements TlsCrypto
{
    public TlsSecret adoptSecret(TlsSecret secret)
    {
        // TODO[tls] Need an alternative that doesn't require AbstractTlsSecret (which holds literal data)
        if (secret instanceof AbstractTlsSecret)
        {
            AbstractTlsSecret sec = (AbstractTlsSecret)secret;

            return createSecret(sec.copyData());
        }

        throw new IllegalArgumentException("unrecognized TlsSecret - cannot copy data: " + secret.getClass().getName());
    }
}