Package org.gcube.common.encryption

Class SymmetricKey

java.lang.Object

org.gcube.common.encryption.SymmetricKey

public final class SymmetricKey
extends Object

Author:

Roberto Cirillo (ISTI - CNR), Lucio Lelii (ISTI - CNR), Luca Frosini (ISTI - CNR)

Method Summary

Modifier and Type	Method	Description
static Key	getKey()	Gets the key for encryption/decryption
protected static String	getKeyFileName(String context)	Gets the key file name for the given context
static Key	loadKeyFromFile(File keyFile, String keyAlgorithm)	Loads a key from the specified file using the given algorithm

Methods inherited from class java.lang.Object

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

Method Details

getKey

public static Key getKey()
                  throws InvalidKeyException

Gets the key for encryption/decryption

Returns:

the key

Throws:

InvalidKeyException - if the key is not available or is invalid

loadKeyFromFile

public static Key loadKeyFromFile(File keyFile,
 String keyAlgorithm)
                           throws InvalidKeyException

Loads a key from the specified file using the given algorithm

Parameters:

keyFile - the file containing the key

keyAlgorithm - the algorithm of the key

Returns:

the loaded key

Throws:

InvalidKeyException - if the key cannot be loaded

getKeyFileName

protected static String getKeyFileName(String context)
                                throws InvalidKeyException

Gets the key file name for the given context

Parameters:

context - the context to generate the key file name for

Returns:

the key file name

Throws:

InvalidKeyException - if the context is invalid