This seminar is a proposal for PhD thesis

1. Design and Implementation of a Secure Wireless
Hyper Chaotic Communication System Based on Field
Programmable Gate Array (FPGA)
Prepared by:
Hayder Alibraheemi
University of Babylon
College of Engineering
Department of Electrical Engineering
1

2. Aim of Thesis
1. Multilevel Cryptosystem Based on Hyperchaotic and
Steganography Techniques for Real time applications.
2. Developing Synchronization Technique robust against noise.
3. Developing a new high order Hyperchaotic Dynamics Generator.
2

3. 3
Cryptography
Stream
Cipher
(Speedy)
Block Cipher

4. 4
Information
Types
Text
Information
Audio
Information
Image
Information
Pixel Value
Encryption
Pixel Location
Encryption
Video
Information

5. 4D Cryptosystem Based on Lorenz Generator
5
8
10, , ,
28 5
3
( )
( )
m m m
m m m m m
m m m m
m m
b r
x y x
y x r z y w
z x y bz
w x
 


    
 
   
 
 
Master / Transmitter Slave / Receiver
8
10, , ,
28 5
3
( )
( )
s s s
s s s s s
s s s s
s s
b r
x y x
y x r z y w
z x y bz
w x
 


    
 
   
 
 

6. Hyperchaotic Behaviour
6

7. Synchronization of Hyperchaotic Systems
7
( )
( )
m m m
m m m m m
m m m m
m m
x y x
y x r z y w
z x y bz
w x


 
   
 
 
Master / Transmitter Slave / Receiver
1
2
3
4
( )
( )
s s s
s s s s s
s s s s
s s
x y x cs
y x r z y w cs
z x y bz cs
w x cs


  
    
  
  

8. Synchronization of Hyperchaotic Systems (cont.)
8
Control Signal
1
2
3
4
x
y
z
w
cs G e
cs G e
cs G e
cs G e




Error Signal
[( ) ( )]
( ( ) ) ( ( ) )
( ) ( )
x m s m m s s
y m s m m m m s s s s
s s
z m m m s s s
m s
w m s
e x x y x y x
e y y x r z y w x r z y w
e z z x y bz x y bz
e w w x x

 
     
         
     
    

9. Master Subsystem
9
8
10, , ,
28 5
3
( )
( )
m m m
m m m m m
m m m m
m m
b r
x y x
y x r z y w
z x y bz
w x
 


    
 
   
 
 
Master / Transmitter

10. Slave Subsystem
10
Slave / Receiver
1
2
3
4
( )
( )
s s s
s s s s s
s s s s
s s
x y x cs
y x r z y w cs
z x y bz cs
w x cs


  
    
  
  

11. Overall Communication System
11

12. Proposed Communication System Results
12
Grayscale Image
Coloured Image

13. Research Sequence (Next Steps)
13
Input
Image
4D Lorenz
Hyperchaotic
Communicati
on System
(FPGA)
Upgrade 4D
to ?D
Hyperchaotic
System in
(FPGA)
Multilevel
Cryptosystem
(Cryptography
+
Steganograph
y) (MATLAB)
Multilevel
Cryptosystem
(Cryptography
+
Steganograph
y) (FPGA)

14. 14