org.cumulus4j.store
Class EncryptionHandler

java.lang.Object
  org.cumulus4j.store.EncryptionHandler

public class EncryptionHandler
extends Object

Singleton per PersistenceManagerFactory handling the encryption and decryption and thus the key management.

Author:

Marco หงุ่ยตระกูล-Schulze - marco at nightlabs dot de

Field Summary

static boolean	DEBUG_DUMP Dump all plain texts to the system temp directory for debug reasons.
static ThreadLocal<String>	debugDumpFileNameThreadLocal

Constructor Summary

EncryptionHandler()

Method Summary

ObjectContainer	decryptDataEntry(CryptoContext cryptoContext, DataEntry dataEntry) Get a plain (unencrypted) ObjectContainer from the encrypted byte-array in the DataEntry.value property.
IndexValue	decryptIndexEntry(CryptoContext cryptoContext, IndexEntry indexEntry) Get a plain (unencrypted) IndexValue from the encrypted byte-array in the IndexEntry.indexValue property.
void	encryptDataEntry(CryptoContext cryptoContext, DataEntry dataEntry, ObjectContainer objectContainer) Encrypt the given plain objectContainer and store the cipher-text into the given dataEntry.
void	encryptIndexEntry(CryptoContext cryptoContext, IndexEntry indexEntry, IndexValue indexValue) Encrypt the given plain indexValue and store the cipher-text into the given indexEntry.
static File	getDebugDumpDir()

Methods inherited from class java.lang.Object

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

Field Detail

DEBUG_DUMP

public static final boolean DEBUG_DUMP

Dump all plain texts to the system temp directory for debug reasons. Should always be false in productive environments!

See Also:

Constant Field Values

debugDumpFileNameThreadLocal

public static ThreadLocal<String> debugDumpFileNameThreadLocal

Constructor Detail

EncryptionHandler

public EncryptionHandler()

Method Detail

getDebugDumpDir

public static File getDebugDumpDir()

decryptDataEntry

public ObjectContainer decryptDataEntry(CryptoContext cryptoContext,
                                        DataEntry dataEntry)

Get a plain (unencrypted) ObjectContainer from the encrypted byte-array in the DataEntry.value property.

Parameters:

cryptoContext - the context.

dataEntry - the DataEntry holding the encrypted data (read from).

Returns:

the plain ObjectContainer.

See Also:

encryptDataEntry(CryptoContext, DataEntry, ObjectContainer)

encryptDataEntry

public void encryptDataEntry(CryptoContext cryptoContext,
                             DataEntry dataEntry,
                             ObjectContainer objectContainer)

Encrypt the given plain objectContainer and store the cipher-text into the given dataEntry.

Parameters:

cryptoContext - the context.

dataEntry - the DataEntry that should be holding the encrypted data (written into).

objectContainer - the plain ObjectContainer (read from).

See Also:

decryptDataEntry(CryptoContext, DataEntry)

decryptIndexEntry

public IndexValue decryptIndexEntry(CryptoContext cryptoContext,
                                    IndexEntry indexEntry)

Get a plain (unencrypted) IndexValue from the encrypted byte-array in the IndexEntry.indexValue property.

Parameters:

cryptoContext - the context.

indexEntry - the IndexEntry holding the encrypted data (read from).

Returns:

the plain IndexValue.

encryptIndexEntry

public void encryptIndexEntry(CryptoContext cryptoContext,
                              IndexEntry indexEntry,
                              IndexValue indexValue)

Encrypt the given plain indexValue and store the cipher-text into the given indexEntry.

Parameters:

cryptoContext - the context.

indexEntry - the IndexEntry that should be holding the encrypted data (written into).

indexValue - the plain IndexValue (read from).