Online Voting System based on Image Steganography and Visual Cryptography

This paper discusses the implementation of an onlinevoting system based on image steganography and visualcryptography. The system was implemented inJava EE on a web-based interface, with MySQL databaseserver and Glassfish application server as thebackend. After considering the requirements of an onlinevoting system, current technologies on electronicvoting schemes in published literature were examined.Next, the cryptographic and steganography techniquesbest suited for the requirements of the voting systemwere chosen, and the software was implemented. Wehave incorporated in our system techniques like thepassword hashed based scheme, visual cryptography,F5 image steganography and threshold decryptioncryptosystem. The analysis, design and implementationphase of the software development of the votingsystem is discussed in detail. We have also used aquestionnaire survey and did the user acceptance testingof the system

Vulnerability Studies of E2E Voting Systems:Lecture Notes in Electrical Engineering

In the recent years, the existence of end-to-end voter-verifiable (E2E) voting system had increased significantly. Some of the prospective ones have been used in a medium to large scale elections. We have also developed one (eVote). In this paper we review their capabilities to provide an individual and universally verifiable voting system, incoercibility and receipt-freeness to ensure election integrity. We compare some properties along with its resistance against malicious attacks

Implementation and Evaluation of Steganography based Online Voting

Though there are online voting systems available, the authors propose a new and secure steganography based E2E (end-to-end) verifiable online voting system, to tackle the problems in voting process. This research implements a novel approach to online voting by combining visual cryptography with image steganography to enhance system security without degrading system usability and performance. The voting system will also include password hashed-based scheme and threshold decryption scheme. The software is developed on web-based Java EE with the integration of MySQL database server and Glassfish as its application server. The authors assume that the election server used and the election authorities are trustworthy. A questionnaire survey of 30 representative participants was done to collect data to measure the user acceptance of the software developed through usability testing and user acceptance testing

Solid-Supported Synthesis Of Polymerizable Lanthanide-Ion Chelating Lipids For Protein Detection

Usually, lipids are synthesized employing solution-phase organic synthesis techniques. Though successful, the purifications can be difficult to accomplish due to the amphiphilic nature of the molecules. Herein, we demonstrate the advantages of a solid-phase approach for preparing a variety of metal-chelating lipids. A number of saturated and polymerizable metal-chelating lipids were prepared using this methodology. This approach requires one Chromatographic purification after cleaving the lipids from the solid support. We also demonstrate that the resulting polymerized liposomes (containing Eu 3+) possess the appropriate luminescence properties for the qualitative and quantitative determination of proteins. © 2005 American Chemical Society

Creating a terahertz wave source through nonlinear difference frequency generation in ferroelectric crystals

This paper proposes that terahertz waves may be generated from higher frequency sources by exploiting the difference-frequency nonlinear effect in ferroelectric crystals. The nonlinear response of ferroelectric crystals together with the fact that they are resonant in the terahertz region is the main reason for proposing their use

Effect of MgO and ZrO2 additions on the properties of magnesite-chrome composite refractory

Magnesite-chrome aggregates have been prepared from friable chrome ore and magnesia of different reactivity in the presence of an additive, ZrO2. Two types of batch compositions using sintered magnesia, caustic magnesia and chrome ore have been selected for preparing mag-chrome composites. The batch consisting of sintered magnesia and friable chrome ore (SMC) was vibromilled for 8 h, whereas caustic magnesia compositions were added directly to a vibromilled chrome ore (CMC) and mixed in a fluidized bed mixer. Additions of 1-5 wt.% ZrO2 were made to the batches. Firings were carried out between 1700 and 1750 degrees C with 2 h soaking. Aggregates were characterized by evaluating densification, hot modulus of rupture and microstructure. The reactivity of magnesia was found to play an important role in the final properties of samples. Introducing less reactive sintered magnesia improved all the properties of the aggregates. ZrO2 was found to be a good sintering aid in the magnesite-chrome composites. (c) 2006 Elsevier Ltd and Techna Group S.r.l

Preparation and properties of Y2O3 containing zirconia-mullite composites derived from sillimanite beach sand

Mullite-zirconia composites with 2-6 mol% yttrium oxide have been prepared from Indian coastal sillimanite beach sand, zirconia and alumina. All raw materials have been attrition milled and then isostatically pressed followed by sintering in the range of 1500-1600 degreesC with a 2-h soaking period. Then the sintered materials have been characterised in terms of bulk density, linear shrinkage, hot modulus of rupture, X-ray diffraction, infra red spectroscopy and microstructural features. The effect of yttrium oxide with change of sintering temperature for different properties have been discussed. (C) 2002 Published by Elsevier Science Ltd and Techna S.r.l

New method for reducing distortion in directly modulated lasers in subcarrier-multiplexed systems

Proceedings of SPIE - The International Society for Optical Engineering2614236-243PSIS

Sintering behaviour and microstructure development of Indian bauxite

Two varieties of Indian bauxite with different impurities were used to study their sintering behaviour and phase development with sintering temperature starting from 1000-1650°C. There phase development and microstructure characterisation were done by X-ray diffraction and Scanning electron microscopy. It was found that both the sintered samples not only contains large amount of vitreous phase, but also contains considerable amount of low melting FeAlTi05 phase. Presence of vitreous phase and low melting FeAlTi05 phase is primarily responsible for inferior high temperature properties of bauxite. Bauxite samples exhibit a RUL of 1450°C. Prevention of low melting phases can increase the RUL to >1600°C

Compact quadruple-mode resonator for wideband bandpass filter design

This study presents the realisation of a wideband bandpass filter using a novel compact quadruple-mode resonator. The quadruple-mode resonator, which is evolved from the square open-loop resonator, is an interesting structure for a compact design. The resonator has two odd and two even mode resonant frequencies whose approximate analytical expressions are derived. For a wide bandwidth filter, three short branch-lines are introduced to the resonator in order to widen the separation between the resonant frequencies. A filter with a 3 dB fractional bandwidth of 96.0% is demonstrated. Simulated and measured results are in good agreement