Knowledge and data engineering
1. WATERMARKING RELATIONAL
DATABASES USING OPTIMIZATION BASED TECHNIQUES
(IEEE-2008)
Proving ownership rights on outsourced
relational databases is a crucial issue in today internet-based application environment
and in many content distribution applications. In this paper, we present a mechanism
for proof of ownership based on the secure embedding of a robust imperceptible watermark
in relational data. We formulate the watermarking of relational databases as a constrained
optimization problem, and discuss efficient techniques to solve the optimization
problem and to handle the constraints. Our watermarking technique is resilient to
watermark synchronization errors because it uses a partitioning approach that does
not require marker tuples. Our approach overcomes a major weakness in previously
proposed watermarking techniques. Watermark decoding is based on a threshold-based
technique characterized by an optimal threshold that minimizes the probability of
decoding errors. We implemented a proof of concept implementation of our watermarking
technique and showed by experimental results that our technique is resilient to
tuple deletion, alteration and insertion attacks.
System
Requirement Specification:-
DOMAIN : TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING
SOFTWARE : Operating System: Windows XP, Platform: DOTNET, Back End :SQL SERVER,
Protocol :UDP
HARDWARE : Processor: Pentium-IV , Speed: 1.8 GHZ , RAM:512 MB, HDD: 80 GB
)
