A Secure E-Exam Management System Jordi Castell` -Roca† ‚Jordi Herrera-Joancomarti‡ and Aleix Dorca-Josa§ a † Rovira i Virgili University of Tarragona‚ Dept. of Computer Engineering and Maths‚ Av. Paisos Catalans‚ 26‚ E-43007 Tarragona‚ Catalonia ‡ Universitat Oberta de Catalunya‚ Av. Tibidabo 39‚ 08035 Barcelona § Universitat d’Andorra‚ Placa de la Germandat‚ 7‚ AD600 Sant Juli` de L` ria‚ Principat d’Andorra ¸ a o E-mail: † jordi.castella@urv.net‚ ‡ jordiherrera@uoc.edu‚ § adorca@uda.ad Abstract
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. 1 A digital signature is the term used for marking or signing an electronic document‚ by a process meant to be equivalent to paper signatures‚ but which makes use of a technology known as public-key cryptography. Additional security properties are required of signatures in the electronic world. This is because the probability of disputes rises dramatically for electronic transactions without face-to-face meetings‚ and in the presence of potentially undetectable modifications to electronic
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CISSP CBK Review Final Exam (Deandre Felder) CISSP CBK Review Page 1 1. A risk is the likelihood of a threat agent taking advantage of a vulnerability to an information system. Risks left over after implementing safeguards is known as: A. Leftover risks B. Residual risks. C. Remaining risks. D. Exposures. 2. Copyright provides what form of protection: A. Protects an author’s right to distribute his/her works. B. Protects information that provides a competitive advantage. C. Protects the
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E-Banking: Security Issues Presentation of the Case I. Point of View The Philippine National Bank (PNB)‚ the country’s first universal bank‚ is the fifth largest private local commercial bank in terms of assets as of December 31‚ 2009. Through the years‚ PNB has led the banking industry with its pioneering efforts in the Remittance Business for Overseas Filipino Workers (OFWs) as well as the introduction of many innovations such as the Bank on Wheels‚ computerized banking‚ ATM banking
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ENCRYPTION AND DECRYPTION WITH ELLIPTIC CURVE CRYPTOGRAPHY Ravi Kumar Kodali Department of ECE National Institute of Technology Warangal‚506004‚INDIA Abstract—Elliptic curve cryptography is the most popular cryptographic technique that provides higher security with a lesser key size.ECC Encryption and Decryption are implemented through Elliptic curve points operations like point addition‚subtraction‚doubling and scalar point multiplication.ECC cryptography technique is quite useful for WSN Applications
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A Survey on Satellite Network Security Ma Ting G0902682F mati0004@ntu.edu.sg Abstract Security is an important concern in satellite multicast communications. Due to its highly dynamic broadcast nature‚ the multicast systems generally have a large number of terminal members with frequent join-leave characteristic. Therefore‚ the satellite networks face significant security challenges‚ such as eavesdropping and Denial of Service (DoS). What is more‚ satellite systems are resource-constrained
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(Supervisory Control And Data Acquisition) networks is a major challenge today. Due to resource constraints and latency requirements in such networks‚ it is infeasible to use traditional key management schemes such as RSA based PKC (Public key cryptography). In this paper‚ we propose a key management scheme‚ making use of Id-NIKDS (Id-based Non Interactive Key Distribution System) along with Polynomial based Pair -wise Key Establishment in a manner that the resulting scheme is efficient an d highly
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E-Money (That’s What I Want) The killer application for electronic networks isn’t video-on-demand. It’s going to hit you where it really matters - in your wallet. It’s‚ not only going to revolutionize the Net‚ it will change the global economy. By Steven Levy Clouds gather over Amsterdam as I ride into the city center after a day at the headquarters of DigiCash‚ a company whose mission is to change the world through the introduction of anonymous digital money technology. I have been inundated
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Primecoin gets its name from the unique algorithm used to mine it. Bitcoin miners use a hashcash algorithm‚ which acts as a proof-of-work to verify legitimate Bitcoins and eliminate duplicates. Primecoin miners‚ on the other hand‚ look for Cunningham chains‚ long strings of prime numbers. As it turns out‚ increasingly enormous prime numbers are exceedingly valuable for RSA encryption‚ which allows two users to pass secret messages back and forth‚ and has been the standard for confidential message
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CHAPTER 1 INTRODUCTION INTRODUCTION TO STEGANOGRAPHY Steganography is the science of writing hidden messages in such a way that no one apart from the sender and intended recipient realizes there is a hidden message. In this technique‚ a secret message is hidden within an ordinary message and the extraction of it is done at its destination. The term steganography combines the two Ancient Greek words Steganos and graphein‚ where “steganos” means “covered‚ concealed‚ or protected” and “graphein”
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