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CS 591 C3S C ryptography & S teganography S ecure S ystem By: Osama Khaleel
Quick Intro. ,[object Object],[object Object],[object Object],[object Object]
Motivation: ,[object Object]
Project Idea ,[object Object],[object Object]
Why to do so? ,[object Object],[object Object],[object Object]
Cryptography: T he science of using mathematics to encrypt and decrypt data. It enables you to send sensitive information across insecure networks (such as the Internet). ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Algorithm Steps: ,[object Object],[object Object],[object Object],[object Object]
Steganography: Hiding a secret message within a larger object in such a way that others can not discern the presence of the hidden message. ,[object Object],[object Object],[object Object],[object Object]
The used Steganographic Techniques: ,[object Object],[object Object],[object Object],[object Object]
The improvements on simple LSB: ,[object Object],[object Object]
 
The improvements on simple LSB: ,[object Object],[object Object],[object Object]
The improvements on simple LSB: ,[object Object],[object Object],[object Object]
Now, if you are asking about how the recipient will know what the used variables are; (the random offset, the LSB method, the SHA-hash, the message length, …) : ??? ,[object Object],[object Object]
Program Sequence ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Hiding Revealing
?

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C3 s

  • 1. CS 591 C3S C ryptography & S teganography S ecure S ystem By: Osama Khaleel
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