com.worldpay.cse.jwe

Class WPJWEObject

java.lang.Object

com.worldpay.cse.jwe.WPJWEObject

public class WPJWEObject
extends java.lang.Object

The JWE Object class that does the whole JWE magic. This class encrypts the payload using AES256GCM algorithm with a random generated key, which in turn is encrypted using RSA1_5 algorithm with a predefined public key. The final result is obtained from serialize() which should be called after encrypt()

Constructor Summary

Constructors

Constructor and Description
WPJWEObject(WPJWEHeader header, java.lang.String payload) Creates a JWE object based on the provided JWE header and plain payload

Method Summary

Modifier and Type	Method and Description
void	encrypt() Encrypts the the plain payload
java.lang.String	serialize() Serialises this JWE object to its compact format consisting of Base64URL-encoded parts delimited by period ('.') characters.
void	setKey(java.security.Key key) Set the key encryption key.

Methods inherited from class java.lang.Object

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

Constructor Detail

WPJWEObject

public WPJWEObject(WPJWEHeader header,
                   java.lang.String payload)

Creates a JWE object based on the provided JWE header and plain payload

Parameters:

header - a WPJWEHeader instance, that must not be null

payload - a plain string payload

Method Detail

encrypt

public void encrypt()
             throws WPCSEException

Encrypts the the plain payload

Throws:

WPCSEException - If encryption failed.

serialize

public java.lang.String serialize()
                           throws WPCSEException

Serialises this JWE object to its compact format consisting of Base64URL-encoded parts delimited by period ('.') characters.

 [header-base64url].[encryptedKey-base64url].[iv-base64url].[cipherText-base64url].[authTag-base64url]
 

Returns:

The serialised JWE object.

Throws:

WPCSEException

setKey

public void setKey(java.security.Key key)

Set the key encryption key. Current implementation uses a RSA public key

Parameters:

key - the key (by default it should be an instance of RSAPublicKey).