br.shob
Class TimeStamp

java.lang.Object
  |
  +--br.shob.TimeStamp

All Implemented Interfaces:

Serializable

public class TimeStamp

extends Object

implements Serializable

TimeStamp is a wraper for a java.util.Date object.
It is responsible for signatura validation, ensuring that this date was generated by the serever.
Only the server should create TimeStamps.

Version:

$Revision: 1.4 $

Author:

crolmos, dukejeffrie

See Also:

Serialized Form

Created:

September 1, 2002

Constructor Summary

TimeStamp(Date d, PrivateKey key)
Main contructor for the class.

Method Summary

boolean	before(TimeStamp other) Description of the Method
int	compareTo(TimeStamp other) Description of the Method
Date	getDate() accessor for the date object.
String	toString() Description of the Method
boolean	verify(PublicKey key) verifies the autenticity of the TimeStamp.

Methods inherited from class java.lang.Object

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

Constructor Detail

TimeStamp

public TimeStamp(Date d,
                 PrivateKey key)
          throws InsecureObjectException

Main contructor for the class.

Parameters:

d - the date object to be signed.

key - the private key used for signing.

Throws:

InsecureObjectException - Description of the Exception

InsecureObjectException - if the signing process fails.

Method Detail

before

public boolean before(TimeStamp other)
               throws InsecureObjectException

Description of the Method

Parameters:

other - Description of the Parameter

Returns:

Description of the Return Value

Throws:

InsecureObjectException - Description of the Exception

compareTo

public int compareTo(TimeStamp other)
              throws InsecureObjectException

Description of the Method

Parameters:

other - Description of the Parameter

Returns:

Description of the Return Value

Throws:

InsecureObjectException - Description of the Exception

getDate

public Date getDate()
             throws InsecureObjectException

accessor for the date object.

Returns:

the Date of this time stamp.

Throws:

InsecureObjectException - if the signing process fails.

toString

public String toString()

Description of the Method

Overrides:

toString in class Object

Returns:

Description of the Return Value

verify

public boolean verify(PublicKey key)
               throws InsecureObjectException

verifies the autenticity of the TimeStamp.

Parameters:

key - the public key used in the verification process.

Returns:

true if the digital signature is valid, false otherwise.

Throws:

InsecureObjectException - if the signing process fails.