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The Bouncy Castle Java API for handling the OpenPGP protocol. This jar contains the OpenPGP API for JDK 1.5 to JDK 1.8. The APIs can be used in conjunction with a JCE/JCA provider such as the one provided with the Bouncy Castle Cryptography APIs.
package org.bouncycastle.openpgp;
import java.io.InputStream;
import org.bouncycastle.bcpg.AEADEncDataPacket;
import org.bouncycastle.bcpg.InputStreamPacket;
import org.bouncycastle.bcpg.SymmetricEncIntegrityPacket;
import org.bouncycastle.openpgp.operator.SessionKeyDataDecryptorFactory;
/**
* The basis of PGP encrypted data - encrypted data encrypted using a symmetric session key.
*/
public class PGPSessionKeyEncryptedData
extends PGPSymmetricKeyEncryptedData
{
PGPSessionKeyEncryptedData(InputStreamPacket encData)
{
super(encData);
}
@Override
public int getAlgorithm()
{
if (encData instanceof AEADEncDataPacket)
{
AEADEncDataPacket aeadData = (AEADEncDataPacket)encData;
return aeadData.getAlgorithm();
}
else
{
return -1; // unknown
}
}
@Override
public int getVersion()
{
if (encData instanceof AEADEncDataPacket)
{
AEADEncDataPacket aeadData = (AEADEncDataPacket)encData;
return aeadData.getVersion();
}
else if (encData instanceof SymmetricEncIntegrityPacket)
{
SymmetricEncIntegrityPacket symIntData = (SymmetricEncIntegrityPacket)encData;
return symIntData.getVersion();
}
else
{
return -1; // unmarked
}
}
public InputStream getDataStream(
SessionKeyDataDecryptorFactory dataDecryptorFactory)
throws PGPException
{
encStream = createDecryptionStream(dataDecryptorFactory, dataDecryptorFactory.getSessionKey());
return encStream;
}
}
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