A Seminar Report On Public Key Infrastructure

Abstract
Public Key Infrastructure is a system for supporting digital signatures and document encryption for an organization. It is fast becoming essential for an effective secure commerce and to fulfill general security and authentication requirements over non-secure networks (like the Net). The banking services are the most popular usage of this technology, which is quickly spreading over all the applications that need security to be fully operational.
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EMBEDDED SECURITY USING PUBLIC KEY CRYPTOGRAPHY IN MOBILE PHONES
ABSTRACT
As mobile networks expand their bandwidth, mobile phones, as with any other Internet device, become substantially exposed to Internet security vulnerabilities. Since mobile phones are becoming popular and widely distributed, they are increasingly used for financial transactions and related electronic commerce. Consequently, they will feature applications that also demand adequate security functions. In this regard, the prevailing security system in ....etc

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What Are Signatures?
Signature For Evidence:
A signature authenticates writing by identifying the signer with the signed document. When the signer makes a mark in a distinctive manner, the writing becomes attributable to the signer.
Why Digital Signatures Are Needed?
Now in computer age where every thing is happening lightning fast the computer base information is utilized effectively then the paper counterpart.
Today it is not possible for us to reach every where in the world to sign a document.
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In paper based financial messaging system, the messages are sent in defined formats duly signed by the authorized signatories. Paperless initiative and changes in the business practices have changed the authorization process. In electronic messaging, the messages are created, authenticated electronically and sent through electronic medium. Present technology facilitates data transmission with security integrity duly taking care of confidentiality and nonrepudiation of messages. Encryption and digital signature play a vital role in providing suc ....etc

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Binary Tree Based Public-Key Management for
Mobile Ad Hoc Networks

Georgios Kambourakis, Elisavet Konstantinou and Stefanos Gritzalis
Info-Sec-Lab Laboratory of Information and Communications Systems Security
University of the Aegean, Samos GR-83200, Greece
{gkamb, ekonstantinou, sgritz}@aegean.gr

Abstract
The establishment of a Public Key Infrastructure (PKI) in Mobile Ad Hoc Networks (MANETs) is considered a difficult task because of the intrinsic characteristics of these networks. The absenc ....etc

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In today's commercial environment, establishing a framework for the authentication of computer-based information requires a familiarity with concepts and professional skills from both the legal and computer security fields. Combining these two disciplines is not an easy task. Concepts from the information security field often correspond only loosely to concepts from the legal field, even in situations where the terminology is similar. For example, from the information security point of view, digital signature means the result of applying to s ....etc

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