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package org.apache.cayenne.crypto.cipher;
import javax.crypto.Cipher;
/**
* @since 4.0
*/
public interface CipherFactory {
/**
* Creates and returns a new {@link Cipher} configured using settings known
* to the factory implementation.
*
* @return a new Cipher that is guaranteed to be unused by other callers or
* null if the factory does not support cipher-based encryption.
*/
Cipher cipher();
/**
* Returns the block size for the ciphers created by this factory. This
* information is needed for the callers to presize they various arrays
* before a cipher is available.
*/
int blockSize();
}