Watermarking Relational Database

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WELCOME

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Watermarking Relational Database Using

Optimization-Based Techniques

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ABSTRACT

Proving ownerships rights on outsourced relational database is

a crucial issue in today's internet based applicationenvironments and in many content distribution applications. Inthis paper, we present a mechanism for proof of ownership

based on the secure embedding of a robust imperceptiblewatermark in relational data. We formulate the watermarking of

relational databases as a constrained optimization problem anddiscus efficient techniques to solve the optimization problemand to handle the constraints. Our watermarking technique isresilient to watermark synchronization errors because it uses a

partioning approach that does not require marker tuple.

In this paper we are discussing about the steps that wehave completed by far in our project

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CONTENTS

y Watermarkingy Existing systemy Proposed systemy Modules associated with the projecty Server moduley Client moduley Dataflow diagramy Screen shotsy System Requirementsy Conclusion

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INTRODUCTION

The rapid growth of the Internet and relatedtechnologies has offered an unprecedented ability toaccess and redistribute digital contents. In such acontext, enforcing data ownership is an important

requirement, which requires articulated solutions,encompassing technical, organizational, and legalaspects

A watermark describes information that can beused to prove the ownership of data such as the owner,origin, or recipient of the content.

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WATERMARKING

y Robust Watermark: for proof of ownership, copyrightsprotection.

y Fragile Watermark: for tamper proofing, data integrity

Watermarking is technique that allow the owner of thedata to embed imperceptible watermark into the data

.

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Existing System

Watermarking in Least Significant Bits(LSB).

This technique embeds the watermark bits in the least

significant bits of selected attributes of a selected

subset of tuples. It uses secret key in watermarking.

y The data partitioning technique used is based on the

use of special marker tuples.

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PROPOSED SYSTEM

Watermarking embeds ownership information in

digital content.

Watermark describes information that can be used to

prove the ownership of relational database. Here the embedding is hidden that the presence of

watermarking is invisible to the user.

y Watermark decoding is based on a threshold-based

technique characterized by an optimal threshold that

minimizes the probability of decoding errors.

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THE MODULES ASSOCIATED WITH

THIS PROJECT ARE

ySERVER (SOURCE) MODULE

yCLIENT (DESTINATION)MODULE

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SERVER (SOURCE) MODULE

THIS MODULE INCLUDES CLASSES SUCH AS

DBCON This class establishes a connection to thedatabase using SQL SERVER.

ACTION CONTROLLER This class initiates the processby accessing the data table.

PARTITION This class eventually divides the tablerecords and assign partition number to it.

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y SINGLE BIT ENCODING This class encodes thepartitioned file by adding one bit to each record.

y ENCRYPTIONThis class gets all the encoded

records and encrypts them as awhole file along the secret key.

yWATERMARK EMBEDDINGThis class embedswatermark and sends it to the destination via networkconnections

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CLIENT (DESTINATION) MODULETHE CLASSES OF THIS MODULE DOES THE REVERSE ENGINEERING

OF THE SOURCE MODULE

MAIN FORM - This class receives the file fromsource

DECRYPTION -This class decrypts the file using thesecret key

REVER

SE PARTITIONT

his class merge the partitionedfile or records into a single file .

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DATAFLOW DIAGRAM

USER

AUTHENT-ICATION

WEATHER

DATABASE

DATA

LISTINGFOR S/W

LISTED TABLESAND FUNCTION

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LISTED

DATAPARTITION

Single bit

encoding

SERIALZATION

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DES

IMPLEMENTATION

GENETIC

ALGORITHM

IMLIMENTATI

ON

HASHCODE

GENERATION

Serialized

data

WATERMARK

EMBEDDED

DATA

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SCREENSHOT - LOGIN

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SCREENSHOT MAIN WINDOW

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WATERMARKING DATABASE

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SCREENSHOT - ENCRYPTION

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SYSTEM REQUIREMENTS

Software Requirements:

y Language : C#(visual studio net2005)

y Operating System : Windows NT/XP

y

Back End : sqlserverHardware Requirements:

y Processor : Pentium IV

y RAM : 512 MB

y Hard Disk : 40GB

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CONCLUSION

In this project, we propose a resilientwatermarking technique for relational data that embedswatermark bits. The watermarking problem was

formulated as a constrained optimization problem thatmaximizes or minimizes a hiding function based on thebit to be embedded. GA and PS techniques wereemployed to solve the proposed optimization problem

and to handle the constraints.

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THANK YOU

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Watermarking Relational Database