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The Bouncy Castle Java APIs for CMS, PKCS, EAC, TSP, CMP, CRMF, OCSP, and certificate generation. This jar contains APIs for JDK 1.8 and up. The APIs are designed primarily to be used in conjunction with the BC LTS provider but may also be used with other providers providing cryptographic services.

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package org.bouncycastle.cert.crmf;

/**
 * An encrypted value padder is used to make sure that prior to a value been
 * encrypted the data is padded to a standard length.
 */
public interface EncryptedValuePadder
{
    /**
     * Return a byte array of padded data.
     *
     * @param data the data to be padded.
     * @return a padded byte array containing data.
     */
    byte[] getPaddedData(byte[] data);

    /**
     * Return a byte array of with padding removed.
     *
     * @param paddedData the data to be padded.
     * @return an array containing the original unpadded data.
     */
    byte[] getUnpaddedData(byte[] paddedData);
}