'Public key algorithms' diaporamas de présentation

Securing Wireless Sensor Networks

Securing Wireless Sensor Networks. CCSP Seminar 8 December 2003 David Evans evans@cs.virginia.edu http://www.cs.virginia.edu/evans/talks/ccsp Department of Computer Science University of Virginia. Two Talks for the Price of One!. 5000 years of cryptography Symmetric Ciphers

711 views • 57 slides

Securing Wireless Sensor Networks

Securing Wireless Sensor Networks. CCSP Seminar 8 December 2003 David Evans evans@cs.virginia.edu http://www.cs.virginia.edu/evans/talks/ccsp Department of Computer Science University of Virginia. Two Talks for the Price of One!. 5000 years of cryptography Symmetric Ciphers

666 views • 57 slides

Network security

707 views • 56 slides

Cryptography

891 views • 51 slides

A THREE ALGORITHM SUITE PROVIDES FLEXIBLE SECURITY

A THREE ALGORITHM SUITE PROVIDES FLEXIBLE SECURITY. A Presentation To The Joint Meeting Of Industry Canada, ANSI C12, and SCC31 by Bill Rush Institute of Gas Technology March 25, 1999 Phoenix, Arizona. A REVIEW OF PREVIOUS SECURITY STANDARDS PRESENTATIONS.

590 views • 49 slides

Cryptography

Cryptography. Chapter 14. Learning Objectives. Understand the basics of algorithms and how they are used in modern cryptography Identify the differences between asymmetric and symmetric algorithms

573 views • 45 slides

Cryptography

Cryptography. Overview of Cryptography Classical Symmetric Cipher Substitution Cipher Transposition Cipher Product Cipher Modern Symmetric Ciphers (DES). Basic Terminology. plaintext - the original message ciphertext - the coded message

430 views • 43 slides

Review

Review. Overview of Cryptography Classical Symmetric Cipher Substitution Cipher Transposition Cipher Product Cipher Modern Symmetric Ciphers (DES). Basic Terminology. plaintext - the original message ciphertext - the coded message

700 views • 42 slides

CSE 451: Operating Systems Winter 2010 Module 17 Authentication / Authorization / Security

2.24k views • 40 slides

CPS110: Secure communication

CPS110: Secure communication. Landon Cox. Physical reality. Alice. Bob. 4 basic tools of the attacker: eavesdrop,. delete. modify,. insert,. Corollary attacks: replay, identity spoofing, man-in-the-middle. Desired properties. Confidentiality Only receiver can understand message

510 views • 35 slides

DIGITAL SIGNATURES

466 views • 34 slides

Applied Cryptography (Public Key)

Applied Cryptography (Public Key). RSA. Public Key Cryptography.

388 views • 33 slides

Computer Security: Principles and Practice

First Edition by William Stallings and Lawrie Brown Lecture slides by Lawrie Brown and edited by Archana Chidanandan. Cryptographic Tools. Computer Security: Principles and Practice. Cryptographic Tools. cryptographic algorithms important element in security services

427 views • 31 slides

An Introduction to Distributed Security Concepts and Public Key Infrastructure (PKI)

An Introduction to Distributed Security Concepts and Public Key Infrastructure (PKI). Mary Thompson, Oleg Kolesnikov Berkeley National Laboratory, 1 Cyclotron Rd, Berkeley, CA 94720. Local Computing. User sits down in front of the computer

362 views • 25 slides

498 views • 22 slides

Tonga Institute of Higher Education Design and Analysis of Algorithms

Tonga Institute of Higher Education Design and Analysis of Algorithms. IT 254 Lecture 9: Cryptography. Cryptographic Systems.

271 views • 20 slides

Public-Key Encryption Structure

Public-Key Encryption Structure. Network Security. Public-Key Encryption Structure. Objectives of the Topic After completing this topic, a student will be able to explain structure of Public-key encryption. Public-Key Encryption Structure.

213 views • 20 slides

Cryptology

Cryptology . Terminology plaintext - text that is not encrypted. ciphertext - the output of the encryption process. key - the information required to convert between plaintext and ciphertext . cryptanalysis - the art of breaking ciphers. cryptography - the art of designing ciphers.

315 views • 17 slides

152 views • 15 slides

Cryptography

Cryptography. The encryption model (for a symmetric-key cipher). Transposition Ciphers. A transposition cipher. One-Time Pads. The use of a one-time pad for encryption and the possibility of getting any possible plaintext from the ciphertext by the use of some other pad.

160 views • 5 slides