'Public key authentication' presentation slideshows

Week 2: Technologies & Classical Techniques

Week 2: Technologies & Classical Techniques. 68-525 Encryption and Authentication Systems Spring 2010. Approach. It helps to keep in mind our approach: gain a broad tech-oriented overview of how encryption and authentication are employed

966 views • 86 slides

CompSci 356: Computer Network Architectures Lecture 24: Network Security

CompSci 356: Computer Network Architectures Lecture 24: Network Security. Xiaowei Yang xwy@cs.duke.edu. Overview. Why studying network security? The topic itself is worth another class Basic cryptography building blocks Security protocols Non-cryptography based security: firewalls.

760 views • 56 slides

Distributed Systems

Distributed Systems. Authentication Protocols Paul Krzyzanowski pxk@cs.rutgers.edu ds@pk.org. Except as otherwise noted, the content of this presentation is licensed under the Creative Commons Attribution 2.5 License. Authentication. Establish and verify identity allow access to resources.

636 views • 56 slides

Distributed Systems

Distributed Systems. Authentication Protocols Minqi Zhou mqzhou@sei.ecnu.edu.cn. Except as otherwise noted, the content of this presentation is licensed under the Creative Commons Attribution 2.5 License. Authentication. Establish and verify identity allow access to resources.

634 views • 56 slides

CSCI-1680 Security

CSCI-1680 Security. Theophilus Benson. Based on lecture notes by Rodrigo Foncesa , Scott Shenker and Mike Freedman. Admini -Trivia. HW #2 graded and on Sakai Avg 96%, StdDev 20% Scores out of 120 points (not including 20 for extra credit)

548 views • 45 slides

SSH

681 views • 42 slides

Secure and Fault-Tolerant Clock Synchronization in Sensor Networks

Secure and Fault-Tolerant Clock Synchronization in Sensor Networks. Andreas Larsson Elad M. Schiller Philippas Tsigas. Outline. Introduction challenges, opportunities and assumptions Our Contribution self-* and secure clock synchronization key establishment with mobile device

571 views • 39 slides

Cryptography and Network Security Chapter 9

572 views • 37 slides

Local & Metropolitan Area Networks

Local & Metropolitan Area Networks. ACOE3 2 2 Lecture 8 Network Security. 0. Overview. As the knowledge of computer networking and protocols has become more widespread, so the threat of intercepting and decoding message data during its transfer across a network has increased.

446 views • 29 slides

An Efficient Scheme for Authenticating Public Keys in Sensor Networks

An Efficient Scheme for Authenticating Public Keys in Sensor Networks . Wenliang (Kevin) Du (Syracuse) Ronghua Wang (Syracuse) Peng Ning (North Carolina State). Sensors. Deploy. Wireless Sensor Networks. Sensors. Deploy. Key Distribution in WSN. Secure Channels. Existing Approaches.

367 views • 28 slides

Secure Shell

Secure Shell. Usually referred to as ssh, the name refers to both a program and a protocol. The program ssh is one of the most useful networking codes Data encryption and compression Terminal access to remote computers File transfer Command execution on remote computers

1.12k views • 26 slides

Computer Security: Principles and Practice

607 views • 25 slides

Computer Security: Principles and Practice

330 views • 25 slides

Handle Client - Java Version

Handle Client - Java Version. Sean Reilly sreilly@cnri.reston.va.us. Outline - Understanding the Handle Client Library for Java. Resolving handles programmatically Authentication How it works Public/private vs. secret keys Handle Administration Administrators, Permissions, Groups

379 views • 24 slides

SSH / SSL

SSH / SSL. Supplementary material. Secure Shell (SSH). One of the primary goals of the ARPANET was remote access Several different connections allowed rlogin rcp rsh All data was unencrypted This was a different world than exists today. SSH.

337 views • 24 slides

Security

Security. Outline Encryption Algorithms Authentication Protocols Message Integrity Protocols Key Distribution Firewalls. Overview. Cryptography functions Secret key (e.g., DES) Public key (e.g., RSA) Message digest (e.g., MD5) Security services

277 views • 18 slides

Summary From the Last Lecture

Summary From the Last Lecture. Key exchange Kerberos Digital certificates Certificate authority structure PGP, hierarchical model Recovery from exposed keys Revocation lists, time-limited keys, real time validation Group key management Robustness, forward/backward secrecy. Authentication.

237 views • 17 slides

Chapter 10: Authentication

Chapter 10: Authentication. Guide to Computer Network Security. Definition. Authentication is the process of validating the identity of someone or something. Generally authentication requires the presentation of credentials or items of value to really prove the claim of who you are.

221 views • 13 slides

Jeremy Wyant W3C DRM Workshop 23 January 2001

Establishing Security Requirements For DRM Enabled Systems. Jeremy Wyant W3C DRM Workshop 23 January 2001. W3C DRM WORKSHOP. NTRU Background. NTRU provides next generation public key technology with all the same basic security capabilities as RSA or ECC

215 views • 11 slides

Researches in Information Security Research Lab Mainly, Sensor and Ad Hoc Network Security

Researches in Information Security Research Lab Mainly, Sensor and Ad Hoc Network Security. DaeHun Nyang ISRL, InHa Univ. Ad Hoc Network Security: Threshold Crypto. Devise an Efficient Threshold cryptography Threshold Schnorr Digital Signature[NK05]

264 views • 9 slides