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The Bouncy Castle Java APIs for the TLS, including a JSSE provider. The APIs are designed primarily to be used in conjunction with the BC FIPS provider. The APIs may also be used with other providers although if being used in a FIPS context it is the responsibility of the user to ensure that any other providers used are FIPS certified and used appropriately.

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package org.bouncycastle.tls.crypto;

import java.io.IOException;

/**
 * Base interface for an encryptor.
 */
public interface TlsEncryptor
{
    /**
     * Encrypt data from the passed in input array.
     *
     * @param input byte array containing the input data.
     * @param inOff offset into input where the data starts.
     * @param length the length of the data to encrypt.
     * @return the encrypted data.
     * @throws IOException in case of a processing error.
     */
    byte[] encrypt(byte[] input, int inOff, int length)
        throws IOException;
}