'Message authentication code mac' diaporamas de présentation

Summer Workshop on Cyber Security Computer Networks Security (Part 2) Dr. Hamed Mohsenian -Rad

Summer Workshop on Cyber Security Computer Networks Security (Part 2) Dr. Hamed Mohsenian -Rad. University of California at Riverside and Texas Tech University July 14- 18, 2014 Supported by National Science Foundation. Securing Computer Networks.

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Digital Signatures

847 views • 62 slides

Message Authentication Network Systems Security

Message Authentication Network Systems Security. Mort Anvari. Message Authentication. Message authentication is concerned with protecting the integrity of a message validating identity of originator non-repudiation of origin (dispute resolution)

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Cryptography and Network Security

Cryptography and Network Security. Fourth Edition by William Stallings Lecture slides by Lawrie Brown (Changed by Somesh Jha). Message Authentication and Hash Functions.

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Lecture 9 Overview

Lecture 9 Overview. RSA. Invented by Cocks (GCHQ), independently, by Rivest, Shamir and Adleman (MIT) Two keys e and d used for Encryption and Decryption The keys are interchangeable M = D( d , E( e , M) ) = D( e , E( d , M) ) Public key encryption

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Public Key

Public Key. ECC , Hash. Elliptic Curve Cryptography. majority of public-key crypto (RSA, D-H) use either integer or polynomial arithmetic with very large numbers/polynomials imposes a significant load in storing and processing keys and messages an alternative is to use elliptic curves

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Public Key (3)

Public Key (3). ECC , Hash ECE 693. Elliptic Curve Cryptography. majority of public-key crypto (RSA, D-H) use either integer or polynomial arithmetic with very large numbers/polynomials imposes a significant load in storing and processing keys and messages

316 views • 31 slides

IE MS5710 Message Authentication and Digital Signature

IE MS5710 Message Authentication and Digital Signature. 26 Feb 20 13 Prof. CHAN Yuen-Yan, Rosanna Department of Information Engineering The Chinese University of Hong Kong. Message Authentication. message authentication is concerned with: protecting the integrity of a message

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Chapter 11 Message Authentication and Hash Functions

Chapter 11 Message Authentication and Hash Functions. Message Authentication. message authentication is concerned with: protecting the integrity of a message validating identity of originator non-repudiation of origin (dispute resolution) then three alternative functions used:

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New Bounds for PMAC, TMAC, and XCBC

New Bounds for PMAC, TMAC, and XCBC. Kazuhiko Minematsu and Toshiyasu Matsushima, NEC Corp. and Waseda University. Fast Software Encryption 2007, March 26-28, Luxembourg City, Luxembourg. Introduction. Message authentication code (MAC) from block ciphers (BCs)

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Cryptographic Hashes

CS461/ECE422 Spring 2012. Cryptographic Hashes. Reading Material. Text Chapters 2 and 21 Handbook of Applied Cryptography, Menezes , van Oorschot , Vanstone Chapter 9 http://www.cacr.math.uwaterloo.ca/hac/. Hash or Checksums.

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Cryptography and Network Security

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Cryptography and Network Security

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Security of Wireless Sensor Network

Security of Wireless Sensor Network. Speaker : Kai- Jia Chang Date : 2010/12/28. Outline. Security requirements Security threats Reference. Security requirements. Data confidentiality Data authenticity Data integrity Data freshness. Security requirements. Data confidentiality

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Lecture 4: Using Block Ciphers

Lecture 4: Using Block Ciphers. Outline encrypting large messages checking integrity securing DES. M1. M2. M3. M4. E. E. E. E. C1. C2. C3. C4. Electronic Code Book (ECB). How to use a block cipher to encrypt a large message?. break message into blocks.

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