Java in a Nutshell, 5th Edition [Electronic resources]

This class is a wrapper around a serializable object. It serializes the object and encrypts the resulting data stream, thereby protecting the confidentiality of the object. Create a SealedObject by specifying the object to be sealed and a Cipher object to perform the encryption. Retrieve the sealed object by calling getObject( ) and specifying the Cipher or java.security.Key to use for decryption. The SealedObject keeps track of the encryption algorithm and parameters so that a Key object alone can decrypt the object.

public class

SealedObject implements Serializable { // Public Constructors public

SealedObject (Serializable

object , Cipher

c ) throws java.io.IOException, IllegalBlockSizeException; // Protected Constructors protected

SealedObject (SealedObject

so ); // Public Instance Methods public final String

getAlgorithm ( ); public final Object

getObject (java.security.Key

key ) throws java.io.IOException, ClassNotFoundException, java.security.NoSuchAlgorithmException, java.security.InvalidKeyException; public final Object

getObject (Cipher

c ) throws java.io.IOException, ClassNotFoundException, IllegalBlockSizeException, BadPaddingException; public final Object

getObject (java.security.Key

key , String

provider ) throws java.io.IOException, ClassNotFoundException, java.security.NoSuchAlgorithmException, java.security.NoSuchProviderException, java.security.InvalidKeyException; // Protected Instance Fields protected byte[ ]

encodedParams ; }