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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;

/**
 * Interface describing an operator factory that creates operators for doing
 * encryption and decryption using symmetric ciphers.
 *
 * @param  the parameters type for the operators the factory creates.
 */
public interface SymmetricOperatorFactory
{
    /**
     * Return an encryptor that operates on an output stream.
     *
     * @param key the key to initialize the encryptor with.
     * @param parameter the parameters to use to initialize the encryptor.
     * @return an OutputEncryptor
     */
    OutputEncryptor createOutputEncryptor(SymmetricKey key, T parameter);

    /**
     * Return a decryptor that operates on an output stream.
     *
     * @param key the key to initialize the encryptor with.
     * @param parameter the parameters to use to initialize the encryptor.
     * @return an OutputDecryptor.
     */
    OutputDecryptor createOutputDecryptor(SymmetricKey key, T parameter);

    /**
     * Return a decryptor that operates on an input stream.
     *
     * @param key the key to initialize the encryptor with.
     * @param parameter the parameters to use to initialize the encryptor.
     * @return an InputDecryptor.
     */
    InputDecryptor createInputDecryptor(SymmetricKey key, T parameter);
}