Package org.bouncycastle.openpgp

Class PGPPBEEncryptedData

java.lang.Object

org.bouncycastle.openpgp.PGPEncryptedData

org.bouncycastle.openpgp.PGPPBEEncryptedData

All Implemented Interfaces:

SymmetricKeyAlgorithmTags

public class PGPPBEEncryptedData
extends PGPEncryptedData

A password based encryption object.

PBE encrypted data objects can be decrypted using a PBEDataDecryptorFactory.

Nested Class Summary

Nested classes/interfaces inherited from class org.bouncycastle.openpgp.PGPEncryptedData

PGPEncryptedData.TruncatedStream

Field Summary

Fields inherited from interface org.bouncycastle.bcpg.SymmetricKeyAlgorithmTags

AES_128, AES_192, AES_256, BLOWFISH, CAMELLIA_128, CAMELLIA_192, CAMELLIA_256, CAST5, DES, IDEA, NULL, SAFER, TRIPLE_DES, TWOFISH

Method Summary

Modifier and Type	Method	Description
InputStream	getDataStream(PBEDataDecryptorFactory dataDecryptorFactory)	Open an input stream which will provide the decrypted data protected by this object.
InputStream	getDataStream(SessionKeyDataDecryptorFactory dataDecryptorFactory)
PGPSessionKey	getSessionKey(PBEDataDecryptorFactory dataDecryptorFactory)	Return the symmetric session key required to decrypt the data protected by this object.
int	getSymmetricAlgorithm(PBEDataDecryptorFactory dataDecryptorFactory)	Return the symmetric key algorithm required to decrypt the data protected by this object.

Methods inherited from class org.bouncycastle.openpgp.PGPEncryptedData

getInputStream, isIntegrityProtected, verify

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

getSymmetricAlgorithm

public int getSymmetricAlgorithm(PBEDataDecryptorFactory dataDecryptorFactory)
                          throws PGPException

Return the symmetric key algorithm required to decrypt the data protected by this object.

Parameters:

dataDecryptorFactory - decryptor factory to use to recover the session data.

Returns:

the identifier of the encryption algorithm used to encrypt this object.

Throws:

PGPException - if the session data cannot be recovered.

getSessionKey

public PGPSessionKey getSessionKey(PBEDataDecryptorFactory dataDecryptorFactory)
                            throws PGPException

Return the symmetric session key required to decrypt the data protected by this object.

Parameters:

dataDecryptorFactory - decryptor factory used to recover the session data.

Returns:

session key

Throws:

PGPException - if the session data cannot be recovered

getDataStream

public InputStream getDataStream(PBEDataDecryptorFactory dataDecryptorFactory)
                          throws PGPException

Open an input stream which will provide the decrypted data protected by this object.

Parameters:

dataDecryptorFactory - decryptor factory to use to recover the session data and provide the stream.

Returns:

the resulting decrypted input stream, probably containing a sequence of PGP data objects.

Throws:

PGPException - if the session data cannot be recovered or the stream cannot be created.

getDataStream

public InputStream getDataStream(SessionKeyDataDecryptorFactory dataDecryptorFactory)
                          throws PGPException

Throws:

PGPException