'Key expansion' diaporamas de présentation

Advanced Encryption Standard (AES)

Advanced Encryption Standard (AES). History. AES is the result of an open competition organized by NIST, US Department of Commerce. NIST issued call for a standard cipher in 1997 15 candidates (out of 21) accepted in Jun 98 Five candidates are sort listed.

5.68k views • 62 slides

Fundamentals of Security in Communication Systems overview tutorial By Dr. Muhammad Elrabaa

Fundamentals of Security in Communication Systems overview tutorial By Dr. Muhammad Elrabaa. Outlines. The Story of Security Science Traditional Secret Key Systems Public Key Systems Protocols Identification Secrecy Modern Standards. Communication Security Objectives. Secrecy

706 views • 53 slides

Advanced Encryption Standard (AES)

Advanced Encryption Standard (AES). INTRODUCTION. The Advanced Encryption Standard (AES) is a symmetric-key block cipher published by the National Institute of Standards and Technology (NIST) in December 2001. Criteria. The criteria defined by NIST for selecting AES fall into three areas:

4.3k views • 49 slides

A clear a replacement for DES was needed have theoretical attacks that can break it

578 views • 44 slides

Conventional Encryption: Algorithms

Some of the most important symmetric block ciphers in current use Triple DES IDEA Blowfish RC5 CAST-128 RC2. Conventional Encryption: Algorithms. Double DES C = E K2 [E K1 [P]]; D = D K1 [D K2 [C]] 112 bit key is safe from brute force attack

943 views • 43 slides

Advance Encryption Standard

689 views • 41 slides

Advance Encryption Standard

497 views • 41 slides

CIPHERSET

411 views • 41 slides

Advanced Encryption Standard (AES)

452 views • 36 slides

Secret Key Cryptography

Secret Key Cryptography. Raj Jain Washington University in Saint Louis Saint Louis, MO 63130 Jain@cse.wustl.edu Audio/Video recordings of this lecture are available at: http://www.cse.wustl.edu/~jain/cse571-09/. Overview. Data Encryption Standard (DES)

637 views • 34 slides

Cryptography and Network Security Chapter 5

331 views • 32 slides

Cryptography and Network Security Chapter 5

378 views • 32 slides

Information Engineering & Technology German University In Cairo

497 views • 30 slides

Cryptography and Network Security

637 views • 29 slides

Advanced Encryption Standard(AES)

Advanced Encryption Standard(AES). Presented by: Venkata Marella. Contents. History Drawbacks of DES Algorithm Feature of AES Algorithm. Substitution-Permutation Network Key Expansion Description of the AES Advantages of AES Security of the AES Comparison b/w AES and DES

627 views • 27 slides

Cryptography and Network Security Chapter 5

560 views • 27 slides

University of Palestine

353 views • 25 slides

1.66k views • 21 slides

A Hardware Implementation of the Blowfish Cipher

A Hardware Implementation of the Blowfish Cipher. Michael C.-J. Lin Youn-Long Lin Department of Computer Science Tsing Hua University Hsin-Chu, Taiwan 300, R.O.C. Outline. Introduction Blowfish Algorithm Hardware Architecture Hardware Requirement Conclusion.

481 views • 14 slides

AES Encryption FIPS 197, November 26, 2001

402 views • 9 slides