be.SIRAPRISE.util
Class UserPrivateKeyProvider

java.lang.Object
  be.SIRAPRISE.util.UserPrivateKeyProvider

All Implemented Interfaces:

Signer

public class UserPrivateKeyProvider
extends java.lang.Object
implements Signer

Author:

Erwin Smout

Constructor Summary

UserPrivateKeyProvider(java.lang.String user)

Method Summary

byte[]

sign(java.security.Signature signature, byte[] signMessage) Computes the signature for the given byte string and the given Signature.

Methods inherited from class java.lang.Object

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

Constructor Detail

UserPrivateKeyProvider

public UserPrivateKeyProvider(java.lang.String user)
                       throws NotFoundException

Parameters:

user -

Throws:

NotFoundException

Method Detail

sign

public byte[] sign(java.security.Signature signature,
                   byte[] signMessage)
            throws java.security.InvalidKeyException,
                   java.security.SignatureException,
                   NotFoundException

Description copied from interface: Signer

Computes the signature for the given byte string and the given Signature. Normally, this involves three method invocations on the given Signature object :

• initSign() the Signature with a PrivateKey object which is to be obtained from private resources
• update() the Signature with the given byte string
• sign() to compute the signature bytes

Specified by:

sign in interface Signer

Parameters:

signature - The Signature object to be used for computing the signature.

signMessage - The message to be signed.

Returns:

the computed signature

Throws:

java.security.InvalidKeyException - If the private key found for signing with this Signature, turns out to be invalid

java.security.SignatureException - If any problem occurred during computation of the signature

NotFoundException - If no private key could be found for signing with this Signature