audio steganography project presentation

1

A

Project Presentation on

Secure Transmission of Information using

Audio Steganography

Submitted in partial fulfillment of award of

BACHELOR OF TECHNOLOGY

Degree

InCOMPUTER SCIENCE & ENGINEERING

ByKUMAR KARTIKEYA UPADHYAY

KM. NEHA RANI

MANVI GUPTA

RAJU RAJPUT

2011-2015

GUIDESURYA PRAKASH SHARMA

ASSISTANT PROFFESOR

NOIDA INSTITUTE OF ENGINEERING &

TECHNOLOGY, GREATER NOIDA(U.P.)

Requirements

HARDWARE

Intel Core i3 CPU@

2.40 Ghz

RAM: 2 GB

SOFTWARE

Matlab 8.1.0.604

OS-Windows

Microsoft

2

Introduction

Secure Transmission

It refers to the transfer of data such as

confidential information.

TLS and SSL are cryptographic protocols that

provide secure communication on the internet.

3

Steganography

The process of hiding the messages so that the presence of

message itself is hidden , often by writing them in places

where they may not be found.

Select Host

audio

Secret bits

(message)

Secret

message

Preprocessin

g

System

Extract secret

bits from

coefficient

Embedding

bits by location

selection

Select

location in

each

coefficient

Network

4

EXAMPLE

Since everybody can read, encoding

text, in natural sentences in doubtfully

effective.

Since Everybody Can Read, Encoding

Text, In Natural Sentences In Doubtfully

Effective.

‘SECRET INSIDE’

5

Audio Steganography

Embedding secret message into

digital sound is called audio

steganography.

Audio Steganography is presented

where the bits of a secret message

are embedded into the coefficients of

a cover audio.

6

Modules

Take an audio input from the user.

Convert audio bits into binary format.

Embed the secret message with binary bits

using MSB.

Decode the message with the same

procedure as applied in embedding.

Now original message can be viewed by

the receiver.

7

8

SECRET

MESSAG

E

AUDIO

FILE

STEGANOGRAPHI

C SYSTEM

STEGNO

FILE:

SECRET

MESSAGE

+ AUDIO

FILE

0 LEVEL DFD

LEVEL 1 DFD

9

SECRET

MESSAGE

STEGANOGRAPHI

C

ENCRYPTION

PROCESS

STEGNO

FILE:

SECRET

MESSAGE +

CARRIER

FILE

CARRIER FILE

COMPRESSIO

N PROCESS

DECOMPRESSI

ON PROCESS

DECRYPTION

SECRET FILE

EMBEDDED

STEGO FILE

ENCRYPTED

SECRET MSG

10

Select cover audio file in

wav format

Select file to embed(text &

image )

Embedding starts

Stego audio

E

M

B

E

D

D

I

N

G

11

R

E

T

R

I

E

V

I

N

G

Select Stego Audio

Retrieve Secret

Message

Secret Message

GUI of Embedding Process

12

Select Cover Audio file

13

Histogram of Cover Audio

14

Select Secret message Browse file to embed

15

Embedding Starts….

16

Save Embedded Audio

17

Histogram of Stego Audio

18

GUI of Retrieving Process

19

Browse Stego file

20

Retrieving Starts…..

21

Save Retrieved Message

22

Advantages

Avoiding communication in well-known

forms greatly reduces the risk of

information being leaked in transit.

It can also enhance individual privacy.

23

Applications

Usage in modern printers

Defense Applications

Confidential communication and secret

data storing

Media Database systems

Protection of data alteration.

24

FUTURE SCOPE

25

CONCLUSION

Hiding information may introduce enough visible noise to raise suspicion. Therefore the carrier or cover audio must be carefully selected.

This proposed system is to provide a good, efficient method for hiding the data from hackers and sent to the destination in a safe manner.

This proposed system will not change the size of the file even after encoding and also suitable for any type of audio file format.

Encryption and Decryption techniques have been used to make the security system robust. 26

27