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
Premium RSA Cryptography Digital signature
DIGITAL SIGNATURE A digital signature is an electronic signature that can be used to authenticate the identity of the sender of a message or the signer of a document‚ and possibly to ensure that the original content of the message or document that has been sent is unchanged. Why use certificate signatures? Many business transactions‚ including financial‚ legal‚ and other regulated transactions‚ require high assurance when signing documents. When documents are distributed electronically‚ it
Premium Digital signature Cryptography Certificate authority
Digital Signature Act 1997 The primary intent of the Digital Signature Act 1997 is to regulate the use of digital signatures and to provide for matters connected therewith. We start with the privacy implications of digital signatures in general. A digital signature is a ’message digest’ encrypted using the sender’s private key. The recipient can recreate the message digest from the message they receive using the sender’s public key. He can then compare the two results to satisfy himself
Premium Digital signature Certificate authority Cryptography
DIGITAL FUEL LEVEL INDICATOR ABSTRACT Imagine this. You are on a highway and suddenly your vehicle stops. To your horror‚ you find that you are out of fuel. You check the fuel indicator and find that it has gone repair and is pointing to a higher value on the scale. This is a major shortcoming of the ANALOG FUEL LEVEL INDICATOR. This drawback can be redressed by simply switching the indicator to DIGITAL type. Our project deals on this mechanism and helps to explain the process which can be
Premium English-language films Digital Digital television
Digital library Introduction: A digital library is where the information is digitalised and stored in the form of electronic portal that provides access to all kind of database such as bibliographies‚ full-text resources‚ catalogues‚ search engines‚ internet resources‚ reference works‚ E-journals etc. Earlier its only paper based works only available in libraries. However‚ technologies have overcome the traditional techniques and ways of gathering information from libraries. . Now in present life
Premium Library Information retrieval Digital library
used interchangeably. Digital signatures S.R. SUBRAMANYA AND BYUNG K. YI use some information that is unique to the sender to prevent both forgery and denial; it must be relatively easy to produce; it must be relatively easy to recognize and verify the authenticity of digital signature; it must be computationally infeasible to forge a digital signature either by constructing a new message for an existing digital signature or constructing a fraudulent digital signature for a given message;
Premium Digital signature RSA
The terms ‘Digital Native’ and ‘Digital Immigrant’ were coined by Marc Prensky in the essay he had written in 2001. Digital Natives were defined as students that were born into the digital age‚ their lives are immersed into technology and are the “‘native speakers’ of the digital language of computers‚ video games and the internet” (Prensky M‚ 2001‚ pp. 1). Digital Immigrants are individuals who were not born into the digital world but have come into contact with technology at one point in their
Premium Digital native Marc Prensky Digital
* Merits and Demerits of Digital technology in still photography. Digital Technology: A digital system is a technology that uses discrete‚ discontinuous representations of information or works in a discontinuous manner. This is contrasted with continuous‚ or analog systems which behave in a continuous manner‚ or represent information using a continuous function. Although digital representations are discrete‚ the information represented can be either discrete‚ such as numbers and letters or continuous
Premium Digital photography Digital camera Camera
The real world isn’t either analog or digital‚ but both. Analog and digital signals are mathematical representations of reality and is useful when we want to process information. We can recognize whether or not something is analog or digital by wave forms. Digital signals often show square shapes and analog shows no obvious pattern but sometimes shows a recognizable shape like a sine wave. Because of this‚ we can sometimes form an opinion about the type of signal by recognizing wave forms. There
Premium Digital
“Digital identity has been referred to by many different terms including: online identity‚ online personality‚ digiSelf‚ virtual identity‚ avatar and online persona” (Koosel 149). These terms all bring up the same meaning; computer users create a new identity for themselves on the Internet. The reason for creating digital identities on the Internet is liberation‚ because Internet gives liberation to the users. Real identities can only create these digital identities only on the internet‚ because
Premium World Wide Web Twitter Internet