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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 cipher only able to handle a single block of data.
 *
 * @param  the parameters type for the cipher implemented.
 */
public interface SingleBlockCipher
{
    /**
     * Return the parameters for this single block cipher.
     *
     * @return the cipher's parameters.
     */
    T getParameters();

    /**
     * Return the maximum size of input this cipher can consume.
     *
     * @return maximum size of input in bytes.
     */
    int getInputSize();

    /**
     * Return the size of the output this cipher will produce.
     *
     * @return size of the output block produced in bytes.
     */
    int getOutputSize();
}