fi.hut.tml.xsmiles.mlfc.encryption
Class EncryptionCreator

java.lang.Object
  fi.hut.tml.xsmiles.mlfc.encryption.EncryptionCreator

public class EncryptionCreator

extends java.lang.Object

Utility class for creating encrypted data.

Author:

honkkis, nps

Constructor Summary

EncryptionCreator()

Method Summary

static org.w3c.dom.Document	createEmptyDoc(boolean ns) Create an empty document.
static org.w3c.dom.Element	decrypt(org.w3c.dom.Node node, java.net.URL url, EncryptionKey key) Decrypt a document.
static org.w3c.dom.Element	encrypt(org.w3c.dom.Node node, java.net.URL url, EncryptionKey key) Encrypt a document.
static EncryptionKey	getKey(EncryptionKey key) Get the default encryption key.
static java.security.KeyStore	getKeyStore(EncryptionKey key) Get the key store for an encryption key.

Methods inherited from class java.lang.Object

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

Constructor Detail

EncryptionCreator

public EncryptionCreator()

Method Detail

getKey

public static EncryptionKey getKey(EncryptionKey key)

Get the default encryption key.

Parameters:

key - the current encryption key

createEmptyDoc

public static org.w3c.dom.Document createEmptyDoc(boolean ns)
                                           throws java.lang.Exception

Create an empty document.

Parameters:

ns - should the document be namespace aware?

Throws:

java.lang.Exception - there was error creating the document

encrypt

public static org.w3c.dom.Element encrypt(org.w3c.dom.Node node,
                                          java.net.URL url,
                                          EncryptionKey key)
                                   throws java.lang.Exception

Encrypt a document.

Parameters:

node - the node to be encrypted

url - the base URL of doc

key - the encryption key

Returns:

the encrypted element, or null if the key could not be retrieved

Throws:

java.lang.Exception - the node could not be encrypted

decrypt

public static org.w3c.dom.Element decrypt(org.w3c.dom.Node node,
                                          java.net.URL url,
                                          EncryptionKey key)
                                   throws java.lang.Exception

Decrypt a document.

Parameters:

node - the node to be decrypted

url - the base URL of doc

key - the encryption key

Returns:

the decrypted element, or null if the key could not be retrieved

Throws:

java.lang.Exception - the node could not be encrypted

getKeyStore

public static java.security.KeyStore getKeyStore(EncryptionKey key)
                                          throws java.lang.Exception

Get the key store for an encryption key.

Parameters:

key - the key

Returns:

the keystore for the given key

Throws:

java.lang.Exception - the key sotre could not be accessed