me.edwards.des.demo
Class Submitter

java.lang.Object
  me.edwards.des.demo.Submitter

public class Submitter
extends java.lang.Object

This class allows local Nodes to function without an Election Application. This class is purely used for demonstration purposes.

It handles submitting Ballots to a local Node for demonstration purposes.

Created on: Dec 30, 2015 at 2:01:45 PM

Author:

Matthew Edwards

Field Summary

private static java.util.HashMap<java.lang.String,java.security.interfaces.ECPublicKey>

keys

Constructor Summary

Submitter()

Method Summary

static void	generateDatabase(java.lang.String file, int users) Generates a database of key pairs for demonstration purposes.
static java.security.interfaces.ECPublicKey	getKey(java.lang.String uuid) Returns the corresponding ECDSA Public Key for the specified UUID.
static void	loadDatabase(java.lang.String file) Loads the "public.data" database located in the specified directory and loads it for demonstration purposes.
static void	submit(java.lang.String file, Node node, java.lang.String[][] voteList, int duration) Submits Ballots to a local Node for demonstration purposes.

Methods inherited from class java.lang.Object

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

Field Detail

keys

private static final java.util.HashMap<java.lang.String,java.security.interfaces.ECPublicKey> keys

Constructor Detail

Submitter

public Submitter()

Method Detail

generateDatabase

public static void generateDatabase(java.lang.String file,
                                    int users)
                             throws java.io.IOException

Generates a database of key pairs for demonstration purposes. Two databases are created. "private.data" is created for the private keys and "public.data" is created for the public keys.

Parameters:

file - Directory in which to create databases

users - Number of users to generate data for

Throws:

java.io.IOException - Thrown if an IOException occurs during file writing

loadDatabase

public static void loadDatabase(java.lang.String file)
                         throws java.io.IOException

Loads the "public.data" database located in the specified directory and loads it for demonstration purposes. The keys stored in the database will be used to authenticate Ballots.

Parameters:

file - Directory in which to load the "public.data" database file

Throws:

java.io.IOException - Thrown if an IOException occurs during file reading

submit

public static void submit(java.lang.String file,
                          Node node,
                          java.lang.String[][] voteList,
                          int duration)
                   throws java.io.IOException

Submits Ballots to a local Node for demonstration purposes.

Parameters:

file - Directory in which to load the "private.data" database file

node - Local Node to submit Ballots to

voteList - An array representing a list of Vote IDs, each containing list of possible Votes for that Vote ID

duration - The total amount of time to be taken, in milliseconds

Throws:

java.io.IOException - Thrown if an IOException occurs during file reading

getKey

public static java.security.interfaces.ECPublicKey getKey(java.lang.String uuid)

Returns the corresponding ECDSA Public Key for the specified UUID.

Parameters:

uuid - UUID of the Ballot

Returns:

If the UUID exists, the ECDSA Public Key is returned, otherwise null is returned.