VIDEOSECURITY_SYNOPSIS

8/7/2019 VIDEOSECURITY_SYNOPSIS

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1. Introduction

1.1 Introduction

The key concepts on which the following project is based are anti-plagiarism

and Steganography.

Plagiarism is the "use or close imitation of the language and thoughts of

another author and the representation of them as one's own original work."

Plagiarism is not copyright infringement. While both terms may apply to a

particular act, they are different transgressions. Copyright infringement is a

violation of the rights of a copyright holder, when material protected by

copyright is used without consent. On the other hand, plagiarism is

concerned with the unearned increment to the plagiarizing author's

reputation that is achieved through false claims of authorship.

Steganography is the art of communicating a message by embedding into

multimedia data. The purpose is to send maximum hidden information while

preserving security against detection by an unauthorized person. A

Steganography system is perfectly secure when the statistics of the cover

data (multimedia file) and stegodata (encrypted message) are identical.

Experimental results with existing technology gave small video distortions

after hiding some information. The proposed system is aimed without losing

quality and size.
http://en.wikipedia.org/wiki/Copyright_infringementhttp://en.wikipedia.org/wiki/Reputationhttp://en.wikipedia.org/wiki/Reputationhttp://en.wikipedia.org/wiki/Copyright_infringement


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1.2 Previous Related Work

The first recorded uses of stegnography can be traced back to 440 BC when

Herodotus mentions two examples of stegnography in The Histories of

Herodotus. Demaratus sent a warning about a forthcoming attack to Greece

by writing it directly on the wooden backing of a wax tablet before applying

its beeswax surface. Wax tablets were in common use then as reusable

writing surfaces, sometimes used for shorthand. Another ancient example is

that of Histiaeus, who shaved the head of his most trusted slave and tattooed

a message on it. After his hair had grown the message was hidden. The

purpose was to instigate a revolt against the Persians.

In the past, most of the effort on stegnography has been concentrated on

various media data types such as an image, an audio file, or even a video

file. However, there is relatively little stegnography work on 3D models.

With the development of 3D hardware, 3D computing or visualization has

become much more efficient than ever. This leads to the widespread use of

3D models in various applications such as digital archives, entertainment,

Web3D, MPEG4, and game industry.

In recent years, some perceptual encryption schemes have been proposed for

G.72 speech MP3 music, JPEG images, wavelet-compressed (such as

JPEG2000) images and videos and MPEG videos. The selective encryption

algorithms proposed in can be considered as special cases of the perceptual

encryption for images compressed with wavelet packet decomposition. In

some research papers, a different term, transparent encryption, is used

instead of perceptual encryption emphasizing the fact that the encrypted

multimedia data are transparent to all standard-compliant decoders.

However, transparency is actually an equivalent of another feature called


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format-compliance (or syntax awareness) which does not mean that

some partial perceptible information in plaintexts still remains in cipher

texts. In other words, a perceptual cipher must be a transparent cipher, but a

transparent cipher may not be a perceptual cipher. Generally, perceptual

encryption is realized by selective encryption algorithms with the format-

compliant feature. This paper chooses to use the name of perceptual

encryption for such a useful feature of multimedia encryption

algorithms.More precisely; the focus is on the perceptual encryption of

MPEG videos. After identifying some problems of the existing perceptual

encryption schemes, a more effective design of perceptual MPEG video

encryption is proposed.

1.3 Problem Statement


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This project mainly aims at preventing plagiarism and piracy. Thus it secures

a video file from unauthorized copying or distribution. The motive of the

project is to reach to the source or root of plagiarism and piracy. Any video

is composed of many numbers of frames. These frames are combined to

form a complete and continuous video .The process begins at hiding a

unique key behind each and every frame of the video file. The entire process

can be implemented in the following manner:

A ready video can be broken into subsequent frames and then the key is

hidden behind each frame. Then the frames are then re-combined to form

a video.

This key is unique for each copy that is created and distributed. Once the

hiding of key behind each frame is done, the frames are converted into a

movie. It also maintains a record of the keys and the owners who bought the

CD with the corresponding key on it. It maintains a record of who (customer

name) bought the CD and the corresponding unique key associated or hidden

in it. This record helps in tracing the source of piracy.

Conclusion


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F5 Algorithm

Design of Algorithm

The F5 steganographic algorithm was introduced by German researchers

Pfitzmann and Westfeld in 2001. The goal of their research was to develop

concepts and a practical embedding method for JPEG images that would

provide high steganographic capacity without sacrificing security. Guided by

their 2 attack, they challenged the paradigm of replacing bits of information

in the cover-image with the secret message while proposing a different

paradigm of incrementing image components to embed message bits.

The F5 algorithm embeds message bits into randomly-chosen DCT

coefficient and employs matrix embedding that minimizes the necessary

number of changes to embed a message of certain length.

Overall algorithm the same as F4.

Extends F4 by adding two distinct features:

Permutative straddling

DiscreteCosine

TransformQuantization Permutation

F5Embedding

function

InversePermutation

Huffman

Encoder

Steganogram(JPEG)

BitmapCarrier

Message

Random Number GeneratorPassword

Quality


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Matrix encoding

F4 embeds the data into the next available non-zero coefficient.

F5 will scatter the entire message throughout the carrier.

Uses permutation to equalize the spread of embedded data.


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ALGORITHM:

Start

Accept an mpeg file as an input for encrypting purpose.

Divide the movie into frames.

Generate the key using the key generator.

Save it in a file

With the help of Steganography algorithm insert a compact disk [CD]

key behind the frames.

After the inserting the key behind the frames, re-group the frames to

form the movie again.

This movie is given as the output.

Accept this movie as the input for decrypting purpose.

Again divide the movie into frames.

With the help of the Steganography algorithm derive the hidden key

from the frames.

Stop.

2. Literature Survey


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Introduction

Until modern times cryptography referred almost exclusively to encryption,

which is the process of converting ordinary information (plaintext) into

unintelligible gibberish (i.e., ciphertext).Decryption is the reverse, in other

words, moving from the unintelligible ciphertext back to plaintext. A cipher

(or cypher) is a pair of algorithms that create the encryption and the

reversing decryption. The detailed operation of a cipher is controlled both by

the algorithm and in each instance by a key. This is a secret parameter

(ideally known only to the communicants) for a specific message exchange

context. Keys are important, as ciphers without variable keys can be trivially

broken with only the knowledge of the cipher used and are therefore less

than useful for most purposes. Historically, ciphers were often used directly

for encryption or decryption without additional procedures such as

authentication or integrity checks.

In colloquial use, the term "code" is often used to mean any method of

encryption or concealment of meaning. However, in cryptography, code has

a more specific meaning. It means the replacement of a unit of plaintext (i.e.,

a meaningful word or phrase) with a code word (for example, apple pie

replaces attack at dawn). Codes are no longer used in serious cryptography

except incidentally for such things as unit designations (e.g., Bronco

Flight or Operation Overlord) - since properly chosen ciphers are both

more practical and more secure than even the best codes and also are better

adapted to computers.

Some use the terms cryptography and cryptology interchangeably in English,

while others (including US military practice generally) use cryptography to
http://en.wikipedia.org/wiki/Ciphertexthttp://en.wikipedia.org/wiki/Ciphertext


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refer specifically to the use and practice of cryptographic techniques and

cryptology to refer to the combined study of cryptography and cryptanalysis.

English is more flexible than several other languages in which cryptology

(done by cryptologists) is always used in the second sense above. In the

English Wikipedia the general term used for the entire field is cryptography

(done by cryptographers).

The study of characteristics of languages which have some application in

cryptography (or cryptology), i.e. frequency data, letter combinations,

universal patterns, etc. is called cryptolinguistics.

Literature Domain


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Encryption is the process of converting normal data or plaintext to

something incomprehensible or cipher-text by applying mathematical

transformations. These transformations are known as encryption algorithms

and require an encryption key. Decryption is the reverse process of getting

back the original data from the cipher-text using a decryption key. The

encryption key and the decryption key could be the same as in symmetric or

secret key cryptography, or different as in asymmetric or public key

cryptography.

Algorithms

A number of encryption algorithms have been developed over time for both

symmetric and asymmetric cryptography. The ones supported by the default

providers in J2SE v1.4 are: DES, TripleDES, Blowfish,

PBEWithMD5AndDES, and PBEWithMD5AndTripleDES. Note that these

are all symmetric algorithms.

DES keys are 64 bits in length, of which only 56 are effectively available as

one bit per byte is used for parity. This makes DES encryption quite

vulnerable to brute force attack. TripleDES, an algorithm derived from DES,

uses 128-bit keys (112 effective bits) and is considered much more secure.

Blowfish, another symmetric key encryption algorithm, could use any key

with size up to 448 bits, although 128-bit keys are used most often. Blowfish

is faster than TripleDES but has a slow key setup time, meaning the overallspeed may be less if many different keys are used for small segments of data.

Algorithms PBEWithMD5AndDES and PBEWithMD5AndTripleDES take

a password string as the key and use the algorithm specified in PKCS#5

standard.


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Program Language Features

The project is implemented using JAVA as front end.

Introduction to Java

The java language was developed by sun Microsystems in 1992.sun begin a

project to run TV&VCR sets, interactive TV and VCR .in 1991, a group of

Sun Engineers, led by Patrick Naught on and Sun fellow James Gosling

wanted to design a small language which could be for interactive consumer

devices. In September 1992, the James Gosling office. However, since there

was already a language name Oak existing, Sun named it Java. It is a

trademark of Sun Microsystems.

Sun released the first version of java in early 1996. Java 1.3 a couple of

months followed it later. In 1998,Sun Microsystems released the latter

version as Java 1.3,which replaces the early toy-like GUI and graphics

toolkits with sophisticated and scalable versions that come closer to the

promise of Write once, Run anywhere! then their predecessors.

Features

Java is one of the easiest programming languages in the

world now.

Java is Object Oriented Language.

Java is portable and architecturally neutral.

Java is Distributed Language.

Java provides high security

Java is robust

Java is a Multithread Langua


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3. System Design

Introduction

The design phase is the one, where the technical problems are really

solved that makes the project a reality. In this phase the relationship of

the code, database, user interface, and classes begin to take shape in

the minds of the project team.

Use Case Diagram

USER

ENCRYPTING

DECRYPTING


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Form Design

Main Form

FILE OPTIONS

VIDEO SECURITY


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Select Options Screen

Generate Key

Embedding

Generate Key

Close

Generate Key

Main Process window

Select Video Frames

Select key file

Data hideBrowse

Browse

Retrieve


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Activity diagram

SELECT OPTIONS

ENCRYPTING DECRYPTING

SELECT VIDEO FRAMES

ENTER KEY

VIEW ENCRYPTED FILE

SELCT ENCRYPTED

VIDEO FRAMES

EXTRACT KEY


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Sequence Diagram

user

Enter key

Display

ENCRYPTED FILE

EXTRACT KEY

DECRYPTED VIDEOProcess completed Process completed

ENCRYPTING

SELECT VIDEO FRAMES

DECRYPTING

SELECT ENCRYPTED VIDEOFRAMES


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System Requirements

HARDWARE CONFIGURATION:

PROCESSOR : PENTIUM IV

HARD DISK CAPACITY : 40 GB

INTERNAL MEMORY CAPACITY : 128 MB

SOFTWARE CONFIGURATION:

OPERATING SYSTEM : WINDOWS XP

FRONT END : JDK1.6.0

JMF


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Conclusion

The system is highly scalable and user friendly. Almost all the system

objectives have been met. The system has been tested under all criteria. The

system minimizes the problem arising in the existing manual system and it

eliminates the human errors to zero level.

All phases of development were conceived using methodologies. The

software executes successfully by fulfilling the objectives of the project.

Further extensions to this system can be made required with minor

modifications.


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Module Description

The project contains following modules

1. Main module

2. Select Options

3. Generate key

4. Embedding

Brief Description

1. Main Module

This module provides the user interface to start the project

It is a frame with menu bar with menus for selecting options

and exiting from the software

2. Select Options

This module provides with two options

Generate Key

Embedding

3. Generate Key

This module is used to generate the key. The key is displayed in

a textbox and saved in a file (key.txt)

4. Embedding


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This module provides the user interface for selecting the video

file and dividing it into frames and hiding key inside the

frame .Also a retrieve button is added to extract data from the

video.

4 Future Work

The project hides the key behind the frames and the the key is extracted

In future , the concept can be expanded to maintain a database of the keys

with name of persons registered for it.

This can help in finding out the person responsible for piracy.

5. References

Books

[1] Patrick Naughton, Herbert Schildt, Java 2: The Complete Reference,

Third Edition, Tata McGraw-Hill Publishing Company Limited.

[2] David Flanagan, Java in a Nutshell, 2nd Edition, May 1997

[3] Dietel & Deitel, Java How to Program, BPB Publishers, New Delhi,

2000.

[4] Oreilly, Java Swings, Tata McGraw Hill, Fifth Edition, 2002.


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[5] Broukshickle, Thinking in Java, Calgotia Publishers, New Delhi, 2001

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