1. WIRELESS SENSOR NETWORK
SECURITY
PROJECT SECOND REVIEW

2. Contents







Abstract
Base Paper
System Flow Diagram(SFD)
Data Flow Diagram(DFD)
Sample Coding
Sample Screen Shot
Conclusion

3. Abstract
Wireless Sensor Networks (WSNs) offer an excellent
opportunity to monitor environments, and have a lot of
interesting applications, some of which are quite sensitive
in nature and require full proof secured environment. The
security mechanisms used for wired networks cannot be
directly used in sensor networks as there is no usercontrolling of each individual node, wireless environment,
and more importantly, scarce energy resources. In this
paper, we address some of the special security threats and
attacks in WSNs.

4. Systen Flow Diagram(SFD)
Jamming in Wireless Sensor
Network
WSN
QOS (Quality of
Service)
Diversity of Data
Traffic
Modular
Geographical
Information
MAC (Medium
Access Control)
Acknowledge
Mechanism
Distributed Protocol
Latency

5. Data Flow Diagram(DFD)
Traffic Allocation Constraints
Vector S Multiple
Path
Jammer
S
D
Vector S Non Negative Multiple Path
Return
Optimal Traffic Portfolio Theory
US S Utility Rate
S
D

6. Optimal Distributed Traffic Allocation using NUM
NUM Maximum Network
Flow
S
Minimal Massage Passing
D
Computational Complexity
Least Check the ID and
S
D

7. Sample Coding
using
using
using
using
using
using
using
using
System;
System.Collections.Generic;
System.ComponentModel;
System.Data;
System.Drawing;
System.Text;
System.Windows.Forms;
Ensuring_Data_Storage_Security;
namespace Ensuring_Data_Storage_Security.Class
{
public partial class frmEnsuringDataStorage :
Form
{
DataLayer fun = new DataLayer();
Router router = new Router();
public static bool ZToken = false;
UserType zUser = UserType.None;
public frmEnsuringDataStorage()
{
InitializeComponent();
router.evtDublicateSystemAdded += new
Router.DublicateSystemAdded(router_evtDublicateSyst
emAdded);
router.evtNewSystemconnected += new
Router.NewSystemconnected(router_evtNewSystemconnec
ted);
}
void router_evtNewSystemconnected(GSystem
sys)
{
//
//fun.AddSys(GSystem.co);
//AddComputers();
this.Refresh();

8. toolTip1.Show(sys.IP + " Newly Added in
network", panel1, 3000);
this.Refresh();
Application.DoEvents();
}
sys)
void router_evtDublicateSystemAdded(GSystem
{
//throw new Exception("The method or
operation is not implemented.");
toolTip1.Show(sys.IP + " Dublicate
system found in network", panel1, 3000);
}
#region Helper Functions
public void AddComputers()
{
try
{
string path =
Application.StartupPath + "IP";
int i = 1;
DataLayer.Sys[] sy =
fun.GetAllSys();
foreach (Control ctrl in
this.Controls)
{
if (ctrl.GetType().Name ==
"ucSystem")
{
}
this.Controls.Remove(ctrl);
}
foreach (DataLayer.Sys s in sy)
{

9. if (!
System.IO.Directory.Exists(path + s.ID.ToString()))
System.IO.Directory.CreateDirectory(path +
s.ID.ToString());
ucSystem uc = new ucSystem();
uc.Name = s.ID.ToString();
//i.ToString();
uc.BackColor = Color.SkyBlue;
uc.BorderStyle =
BorderStyle.Fixed3D;
this.Controls.Add(uc);
uc.Visible = true;
uc.LoadDefault(s);
i++;
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
#endregion
private void frmGlobalComputing_Load(object
sender, EventArgs e)
{
try
{
AddComputers();
}
catch (Exception ex) { }
}
private void
frmGlobalComputing_MouseClick(object sender,
MouseEventArgs e)
{

10. //try
//{
//
if (e.Button ==
MouseButtons.Right)
//
{
//
frmNodeDetails frm = new
frmNodeDetails();
//
frm.zNode = fun.GetSys(1);
//
frm.zNode.X = e.X;
//
frm.zNode.Y = e.Y;
//
if (frm.ShowDialog() ==
DialogResult.OK)
//
{
//
if
(router.Connect(GSystem.Convert(frm.zNode)))
//
{
//
fun.AddSys(frm.zNode);
//
AddComputers();
//
}
//
}
//
frm.Dispose();
//
}
//}
//catch (Exception ex)
//{
//
MessageBox.Show(ex.Message);
//}
}
private void button1_Click(object sender,
EventArgs e)
{
try
{
Random cpu = new Random();
Random ram = new Random();
Random seconds = new Random();

11. this.Controls)
foreach (Control ctrl in
{
"ucSystem")
if (ctrl.GetType().Name ==
{
GSystem.WorkLoad();
(ucSystem)ctrl;
ram.Next(10, 90);
cpu.Next(10, 50);
seconds.Next(4, 20);
GSystem.WorkLoad l = new
ucSystem c =
l.MaxRamUsage =
l.MaxCPUusage =
l.TotalSeconds =
if (!
fun.IsDublicate(c.zSys.IP))
c.zSys.BeginWork(l);
}
}
}
Sample Screen shot

12. Sc-1
Sc-2

13. Sc-2
Sc-4
Sc-5

14. Sc-6
Sc-7

15. Sc-8
Sc-9

16. Conclusion

17. Emerging field in a traditional world of computer
security. A vast amount of research work is being
conducted in this area.Possible thesis ideas: Working on
key distribution schemes, modifying existing encryption
algorithms, working on the IDS side of things.
Submitted by
R.Mahalakshmi
S.Snegha
S.Radhika
A.Krishnapriya
P.Divya
Project Guidence
HOD