org.bouncycastle.openpgp.operator.PGPKeyEncryptionMethodGenerator Maven / Gradle / Ivy

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The Bouncy Castle Java APIs for the OpenPGP Protocol. 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.openpgp.operator;

import org.bouncycastle.bcpg.ContainedPacket;
import org.bouncycastle.bcpg.SymmetricKeyAlgorithmTags;
import org.bouncycastle.openpgp.PGPEncryptedDataGenerator;
import org.bouncycastle.openpgp.PGPException;

/**
 * An encryption method that can be applied to encrypt data in a {@link PGPEncryptedDataGenerator}.
 */
public abstract class PGPKeyEncryptionMethodGenerator
{
    /**
     * Generates a packet encoding the details of this encryption method.
     *
     * @param encAlgorithm the {@link SymmetricKeyAlgorithmTags encryption algorithm} being used
     * @param sessionInfo session data generated by the encrypted data generator.
     * @return a packet encoding the provided information and the configuration of this instance.
     * @throws PGPException if an error occurs constructing the packet.
     */
    public abstract ContainedPacket generate(int encAlgorithm, byte[] sessionInfo)
        throws PGPException;

    public abstract ContainedPacket generateV5(int encAlgorithm, int aeadAlgorithm, byte[] sessionInfo)
        throws PGPException;

    public abstract ContainedPacket generateV6(int encAlgorithm, int aeadAlgorithm, byte[] sessionInfo)
        throws PGPException;
}