"Publickey cryptography" Essays and Research Papers

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    CRYPTOGRAPHY

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    CRYPTOGRAPHY Implementing a Secure Electronic Transaction Platform with Data Encryption and Decryption Processes. (A Case Study of an E-commerce web portal with an integrated payment system) ABSTRACT With the increasing popularity of internet‚ the e-commerce market where goods/products are being paid via an online medium has grown rapidly in recent past years‚ there is a glaring need for its payment information not to scrambled away or identified by unauthorised

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    cryptography

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    CRYPTOGRAPHY- ENCRYPTION AND DECRYPTION Cryptography is the practice and study of techniques for secure communication in the presence of third parties (called adversaries). More generally‚ it is about constructing and analyzing protocols that overcome the influence of adversaries and which are related to various aspects in information security such as data confidentiality‚ integrity‚ authentication‚ and non-repudiation. Modern cryptography intersects the disciplines of mathematics‚ computer science

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    Cryptography

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    International Journal of Science and Technology Volume 1 No. 3‚ March‚ 2012 A Survey on the Applications of Cryptography Shivangi Goyal University School Of Information Technology Guru Gobind Singh Indraprastha University 16-C‚ Dwarka‚ Delhi ABSTRACT This paper gives a brief summary of cryptography‚ where it is applied and its usage in various forms. Cryptography is a way of safeguarding the crucial data from unauthorized access. It has emerged as a secure means for transmission of information

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    Report on Cryptography

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    Contents Introduction 2 History of Cryptography 2 Modern Cryptography 4 Bibliography 5 Introduction If you want to keep valuable information a secret‚ there is two possible solutions: hide the entire existence of the information (Steganographic)‚ or make the information unintelligible (Cryptographic). For the sake of this report we will only look at Cryptography. Cryptography is a technique used to hide the meaning of a message and is derived from the Greek word kryptos which means “hidden” (Mathai)

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    network cryptography

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    protocols used in time synchronization and event scheduling applications. It outlines the design requirements of these protocols and why these requirements cannot be met using conventional cryptography and algorithms. It proposes a new design called autokey‚ which uses a combination of public-key cryptography and a psuedo-random sequence of one-way hash functions. Autokey has been implemented for the Network Time Protocol (NTP)‚ but it can be adapted to other similar protocols. The paper describes

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    Cryptography and Matrices

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    Linear Application and Hill Cipher. Cryptography has played an important role in information and communication security for thousand years. It was first invented due to the need to maintain the secrecy of information transmitted over public lines. The word cryptography came from the Greek words kryptos and graphein‚ which respectively mean hidden and writing (Damico). Since the ancient days‚ many forms of cryptography have been created. And in 1929‚ Lester S. Hill‚ an American mathematician and

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    Cryptography

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    Assignment Requirements Part 1: Answer the following questions by filling in the blank using the proper technology or cryptography terms you have learned in class: 1. SSL certificates type of certificate is used to provide security on Web sites. 2. PKI is the most common public key encryption systems and‚ in most cases‚ this relies on manual trust and key distribution. 3. Message authentication code provides authentication or proves integrity of a digital message. 4. SHA-1 encryption

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    Cryptography Exercises

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    Exercise 1 Decrypt each of the following Caesar encryptions... (a) LWKLQNWKDWLVKDOOQHYHUVHHDELOOERDUGORYHOBDVDWUHH (b) UXENRBWXCUXENFQRLQJUCNABFQNWRCJUCNAJCRXWORWMB (c) BGUTBMBGZTFHNLXMKTIPBMAVAXXLXTEPTRLEXTOXKHHFYHKMAXFHNLX Exercise 2 For this exercise‚ use the simple substitution table given in Table below. a b c d e f g h i j k l m n o p q r s t u v w x y z S C J A X U F B Q K T P R W E Z H V L I G Y D N M O Table 1.11: Simple substitution encryption table (a) Encrypt the plaintext

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    Quantum Cryptography

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    QUANTUM CRYPTOGRAPHY Arka Deb‚ Nagaraja.H‚ Noor Afshan Fathima III sem Computer Science and Engineering P E S College of Engineering Mandya‚ India. mr.arkadeb@rediffmail.com afshan.shokath@gmail.com nagraj.hpk@gmail.com Keywords— Cryptography‚ Quantum Cryptography‚ Photons‚ Polarization‚ Key. I. Introduction Privacy is paramount when communicating sensitive information‚ and humans have invented some unusual ways to encode their conversations

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    Some Applications of Coding Theory in Cryptography ii CIP-DATA LIBRARY TECHNISCHE UNIVERSITEIT EINDHOVEN Doumen‚ Jeroen M. Some applications of coding theory in cryptography / by Jeroen M. Doumen. – Eindhoven : Technische Universiteit Eindhoven‚ 2003. Proefschrift. – ISBN 90-386-0702-4 NUR 919 Subject headings : cryptology / coding theory / prime numbers 2000 Mathematics Subject Classification : 94A60‚ 11T71‚ 11A41 Printed by Eindhoven University Press. Cover by JWL Producties. Kindly supported

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