'Public key system' diaporamas de présentation

Introduction to Network/ Linux Security

Introduction to Network/ Linux Security. Debashis Saha MIS Group, IIM Calcutta ds@iimcal.ac.in. Overview. What is network security? Kind of security services one might desire What kind of attacks should we try to protect a network against?

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Rachana Y. Patil

Rachana Y. Patil. 1. Symmetric and asymmetric-key cryptography will exist in parallel and continue to serve the community. We actually believe that they are complements of each other; the advantages of one can compensate for the disadvantages of the other.

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TOTURIAL CRYPTOGRAPHY

TOTURIAL CRYPTOGRAPHY. Ver :1. Things to learn about. Concepts of encryption Cryptanalysis Symmetric encryption Asymmetric encryption Protocols and certificates Digital signatures Types of encryption algorithms. Basic Concept Encryption. Substitution (Penggantian ). Transposition

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Public Key Encryption

Public Key Encryption. Dan Fleck CS 469: Security Engineering. 1. 1. These slides are modified with permission from Bill Young ( Univ of Texas). Public Key Encryption.

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A Public Key Cryptosystem and a Signature Scheme Based on Discrete Logarithms

A Public Key Cryptosystem and a Signature Scheme Based on Discrete Logarithms. TAHER ELGAMAL IEEE TRANSACTIONS ON INFORMATION THEORY, JULY 1985 Suhyung Kim Yeojeong Yoon 2010. 2. 25. Outline. Introduction Diffie -Hellman key distribution Elgamal Public Key System

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ECE-8843 csc.gatech/copeland/jac/8843/ Prof. John A. Copeland

ECE-8843 http://www.csc.gatech.edu/copeland/jac/8843/ Prof. John A. Copeland john.copeland@ece.gatech.edu 404 894-5177 fax 404 894-0035 Office: GCATT Bldg 579 email or call for office visit, or call Kathy Cheek, 404 894-5696 Chapter 3 - Public-Key Cryptography & Authentication.

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ECE-8843 csc.gatech/copeland/jac/8843/ Prof. John A. Copeland

ECE-8843 http://www.csc.gatech.edu/copeland/jac/8843/ Prof. John A. Copeland john.copeland@ece.gatech.edu 404 894-5177 fax 404 894-0035 Office: GCATT Bldg 579 email or call for office visit, or call Kathy Cheek, 404 894-5696 Chapter 3 - Public-Key Cryptography & Authentication.

296 views • 21 slides

Lecture Goals

Lecture Goals. To know What is the cryptography? What is a key in cryptography system? What is a symmetric key system? What is a public key system? What is the base of the Public-key cryptography? To exercise simple cryptography algorithms. Cryptography. Definition

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The First Ten Years of Public-Key Cryptography

The First Ten Years of Public-Key Cryptography. Paper by: Whitfield Diffie Presentation by Taotao Zhao. Initial Discoveries. Public key cryptography was born in May 1975, the child of two problems:

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RSA Cryptography

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The Idea of Public Key Cryptography

The Idea of Public Key Cryptography . Cunsheng Ding HKUST, Hong Kong. The Idea of Public Key Cryptography. Put (lock, locking key) in the public domain, i.e., in a post office. Anyone who wants to send me a letter confidentially can do the following: Buy a strong box

184 views • 5 slides