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The FIPS 140-2 Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms certified to FIPS 140-2 level 1. This jar contains the debug version JCE provider and low-level API for the BC-FJA version 1.0.2.3, FIPS Certificate #3514. Please note the debug jar is not certified.

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package org.bouncycastle.crypto;

/**
 * Base interface for a creator of a keyed extendable output function (XOF) calculators.
 *
 * @param  the parameters type for the XOF calculator we produce.
 */
public interface KeyedXOFOperatorFactory
{
    /**
     * Create an extendable output function calculator which provides an OutputStream to write data to.
     *
     * @param key the secret keyto initialise the XOF with.
     * @param parameters configuration parameters for the function.
     * @return an XOF calculator.
     */
    OutputXOFCalculator createOutputXOFCalculator(SymmetricKey key, T parameters);
}