information may be introduced as evidence in a court or law These facilities are delivered using a mathematical technique called public key cryptography‚ which uses a pair of related cryptographic keys to verify the identity of the sender (signing) and/or to ensure privacy (encryption). How the Public Key Cryptography concept works Public key cryptography uses a pair of mathematically related cryptographic keys. If one key is used to encrypt information‚ then only the related key can decrypt that
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identify and authenticate a particular person as the source of the message and indicate such person’s approval of the information contained in the message. To generate digital signature we use cryptography technique combine with a hash function and a proper algorithm which provides a public and private key pair .A public key can be used to check digital signatures‚ created with the corresponding private key‚ as well as for encrypting documents that
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Practice Questions with Solutions Chapter 1 1. What is the correct approach for addressing security and organization objectives? a. Security and organization objectives should be developed separately. b. Security should drive organization objectives. c. Security should support organization objectives. d. The site security officer should approve or reject organization objectives. 2. The statement‚ “Promote professionalism among information system security practitioners through the provisioning
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Steganography Using Text Embedding In Sound Files DEVELOPED BY Nandini Chakraborty(MCA/2004/007) Saikat Dasgupta(MCA/2004/027) Abhik Ray(MCA/2004/049) Under Guidance Of--- Hrishikesh Bhaumik Lecturer‚ Department of I.T. RCC Institute of Information Technology Acknowledgement At the very beginning we would like to thank Prof. Hrishikesh Bhaumik‚ Lecturer‚ RCC Institute of Information Technology for being our project guide. Without his help it
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Network Security.......................................................................Page 3 Application‚ Data‚ and Host Security...................................Page 4 Access Control and Authentication Services.....................Page 5 Cryptography Basics................................................................Page 5 Compliance and Operational Security.................................Page 6 Risk Management.....................................................................Page 7
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------------------------------------------------- Top of Form Grading Summary These are the automatically computed results of your exam. Grades for essay questions‚ and comments from your instructor‚ are in the "Details" section below. | Date Taken: | 9/8/2012 | Time Spent: | 09 min ‚ 54 secs | Points Received: | 30 / 30 (100%) | | Question Type: | # Of Questions: | # Correct: | Multiple Choice | 10 | 10 | | | Grade Details - All Questions | 1. | Question :
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1 INTRODUCTION 1. Introduction The idea of a single smart card to be used for multiple services has been around for years. Instead of using separate access devices for different services‚ a user can access multiple services from different service providers by a single smart card. For example‚ a user can use the same smart card to log on to a remote server system‚ enter a secure building‚ and perform a financial transaction. This kind of design frees people from carrying many cards‚
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Part A ( 1 ) The Vigenère cipher is a method of encrypting alphabetic text by using a key known as a running key‚ which is generated by a keyword. In a Caesar cipher‚ we have to shift every letter of the alphabet with other number of places The Vigenère cipher consists of many Caesar ciphers in sequence with different shift values. The Caesar cipher with digraph coding provides a means of increasing the key space from 26 to 676 ‚ so the key can take any value between 0 and 675 . ( 2 ) This digraph
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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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