'Message authentication' diaporamas de présentation

CIS 203

CIS 203. 16 : Network Security. Security Requirements. Confidentiality Integrity Availability Authenticity. Passive Attacks. Eavesdropping on transmissions To obtain information Release of message contents Outsider learns content of transmission Traffic analysis

764 views • 64 slides

Computer Networks with Internet Technology William Stallings

Computer Networks with Internet Technology William Stallings. Chapter 16 Network Security. Security Requirements. Confidentiality Integrity Availability Authenticity. Passive Attacks. Eavesdropping on transmissions To obtain information Release of message contents

1.02k views • 63 slides

Justin Tilton instructional media + magic, inc. As presented at the Common Solutions Group Meeting May 9, 2002 Chicago,

CSG Mini-Workshop: Web Services. Justin Tilton instructional media + magic, inc. As presented at the Common Solutions Group Meeting May 9, 2002 Chicago, Illinois. Overview. Data XML Validation Schema Transport SOAP Security SAML Description WSDL Directory UDDI

638 views • 51 slides

Public-Key Cryptography and Message Authentication

In the Name of the Most High . Public-Key Cryptography and Message Authentication. Behzad Akbari Spring 2012. OUTLINE. Approaches to Message Authentication Secure Hash Functions and HMAC Public-Key Cryptography Principles Public-Key Cryptography Algorithms Digital Signatures

630 views • 42 slides

Chapter 11

Chapter 11. Cryptographic Hash Functions.

586 views • 41 slides

Cryptography and Network Security Chapter 17

585 views • 37 slides

Lecture 7 Overview

Lecture 7 Overview. Advanced Encryption Standard. 10, 12, 14 rounds for 128, 192, 256 bit keys Regular Rounds (9, 11, 13) Final Round is different (10 th , 12 th , 14 th ) Each regular round consists of 4 steps Byte substitution (BSB) Shift row (SR) Mix column (MC) Add Round key (ARK).

421 views • 33 slides

Wireless LAN Security II: WEP Attacks, WPA and WPA2

Wireless LAN Security II: WEP Attacks, WPA and WPA2. 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/cse571-07/. Overview. Wireless Networking Attacks

778 views • 33 slides

IPsec

IPsec. IPsec (IP security) Security for transmission over IP networks The Internet Internal corporate IP networks IP packets sent over public switched data networks (PSDN). Local Network. Local Network. Internet. IPsec. Why do we need IPsec? IP has no security

829 views • 32 slides

Advanced Cryptography

534 views • 31 slides

Distance-decreasing attack in GPS Final Presentation

Distance-decreasing attack in GPS Final Presentation. Prof. Jean-Pierre Hubaux Assistant: Marcin Poturalski. Horacio Arze. Security and Cooperation in Wireless Networks. January 2009. Outline. GNSS Threat model Distance-decreasing attack Performance Discussion Conclusion. GLONASS.

459 views • 27 slides

Multicast Security: A Taxonomy and Some Efficient Constructions

Multicast Security: A Taxonomy and Some Efficient Constructions . By Cannetti et al, appeared in INFOCOMM 99. Presenter: Ankur Gupta. Muliticast Communication . Examples: Internet video transmissions, news feed, stock quotes, live broadcast, on-line video games, etc. Challenges:

328 views • 27 slides

Computer Data Security & Privacy

379 views • 24 slides

S E A D

S E A D. Secure Efficient Distance Vector Routing for Mobile Wireless Ad Hoc Networks Yih-Chun Hu, David B.Johnson, Adrian Perrig. Outline. Features of ad-hoc networks Attack types of ad-hoc networks SEAD VS DSDV One-way hash chains Message authentication SEAD VS DSDV Evaluation.

401 views • 24 slides

New Directions in Cryptography

New Directions in Cryptography. CS 303 Alg. Number Theory & Cryptography Jeremy Johnson. Witfield Diffie and Martin E. Hellman, New Directions in Cryptography, IEEE Transactions on Information Theory, Vol. IT-22, No. 6, Nov. 1976. Classical Cryptography.

614 views • 19 slides

467 views • 17 slides

Author: Debiao He, Sherali Zeadally , Baowen Xu, Member, IEEE, and Xinyi Huang

An Efficient Identity-Based Conditional Privacy-Preserving Authentication Scheme for Vehicular Ad Hoc Networks. Author: Debiao He, Sherali Zeadally , Baowen Xu, Member, IEEE, and Xinyi Huang Publisher: 2015 IEEE Transactions On Information Forensics And Security Presenter : ???

375 views • 17 slides

Cryptography and Network Security

272 views • 17 slides

DCP COMMAND

356 views • 16 slides

Air-Interface Application Layer Security: A follow up to C20-2006-327-011

Air-Interface Application Layer Security: A follow up to C20-2006-327-011. Source: Lucent Technologies, Inc. S.Patel, G.Sundaram, R.Rance, S.Mizikovsky, Z.Wang Recommendation: Discuss and adopt. Motivation. This is a follow up to contribution C20-20060327-011

170 views • 9 slides