'Public key certificate' presentation slideshows

E138 Tightening up EAServer Security

E138 Tightening up EAServer Security. Markus Ohly Sybase European CS&S Markus.Ohly@sybase.com. Tightening up EAServer Security. AGENDA Security Concerns and Risks Security Techniques Applying Security Techniques to EAServer. Tightening up EAServer Security. AGENDA

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Security

Security. Asymmetric Cryptosystems. Need a hard problem (like symmetric cryptosystems) With a trap door: if you know a secret, the hard problem becomes easy. One-Way Functions. Easy to compute, hard to invert Trap-door one way function: D ( E ( M )) = M E and D are easy to compute.

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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.

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Message Digest

Message Digest. Can provide data integrity and non- repudation Used to verify the authentication of a message Idea: compute a hash on the message and send it along with the message

780 views • 56 slides

Key Establishment in Ad Hoc Networks Part 1 of 2

Key Establishment in Ad Hoc Networks Part 1 of 2. S. Capkun, JP Hubaux. Outline. Introduction URSA: Providing Ubiquitous and Robust Security Support for MANET (UCLA proposal) PGP-inspired solution: keys generated by the nodes (EPFL proposal)

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Cosc 4765

Cryptography in action. Cosc 4765. Building protocols. With the primitives Symmetric Algorithms, Message Authentication Codes, One-way Hash Algorithms, Public-key Encryption, Digital Signatures, and Random Number Generators We can build up an "security" protocol

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Federal Agencies and PKI

Federal Agencies and PKI. Richard Guida, P.E. Member, Government Information Technology Services Board Chair, Federal PKI Steering Committee. Richard.Guida@cio.treas.gov; 202-622-1552 http://gits-sec.treas.gov. E-Transaction Landscape. Intra-agency personnel matters, agency management

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Network Security Protocols

Network Security Protocols. Mike Freedman COS 461: Computer Networks Lectures: MW 10-10:50am in Architecture N101 http://www.cs.princeton.edu/courses/archive/spr13/cos461/. Network Security. Application layer E-mail: PGP, using a web-of-trust Web: HTTP-S, using a certificate hierarchy

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Chapter 9

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Security via Java

Security via Java. By Bahaa Zaid bzaid@arxict.com 2009-01-13. Agenda. Introduction to Security Java Security XML Security WS-Security. Introduction to Security. Cryptography Symmetric-Key Cryptography Public-Key Cryptography Public Key Infrastructure Cryptographic Hash Function

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Authentication Protocols

Authentication Protocols. Celia Li Computer Science and Engineering York University. Outline. Overview of authentication Symmetric key authentication protocols (Kerberos) Public key authentication protocols (SSL) Authentication protocols in Wireless Local Area Networks (WLAN).

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The Evolving Federal PKI

The Evolving Federal PKI. Richard Guida, P.E. Member, Government Information Technology Services Board Chair, Federal PKI Steering Committee. Richard.Guida@cio.treas.gov; 202-622-1552 http://gits-sec.treas.gov. E-Transaction Landscape. Intra-agency personnel matters, agency management

255 views • 25 slides

IS511 Introduction to Information Security Lecture 4 Cryptography 2

IS511 Introduction to Information Security Lecture 4 Cryptography 2. Yongdae Kim. Recap. http://syssec.kaist.ac.kr/~yongdaek/courses/is511/ E-mail policy Include [is511] Profs + TA: IS511-prof@gsis.kaist.ac.kr Profs + TA + Students: IS511@gsis.kaist.ac.kr Text only posting, email!

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Public-Key Authentication and Public-Key Infrastructure

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A Framework for Distributed OCSP without Responders Certificate

A Framework for Distributed OCSP without Responders Certificate. Young-Ho Park (pyhoya@mail1.pknu.ac.kr) Kyung-Hyune Rhee (khrhee@pknu.ac.kr) Pukyong National University WISA 2004. Public Key Certificate. Public Key Infrastructure(PKI)

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GS: Chapter 6 Using Java Cryptography for Authentication (Part B)

GS: Chapter 6 Using Java Cryptography for Authentication (Part B). Topics. Message digest (MD) Password authentication for MD Message Authentication Code (MAC) Digital signatures & Identity authentication Digital certificates, X.509, certificate chaining Keystores

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Digital Certificates and X.509

Digital Certificates and X.509. X.509. ITU-T recommendation X.509 is part of the X.500 series of recommendations that define a directory service. The directory is, in effect, a server or distributed set of servers that maintains a database of information of users.

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pass4sureOfficial

http://www.pass4sureOfficial.com. 050-681. Novell. Novell Network Management: NetWare 6. Visit: http://www.pass4sureofficial.com/exams.asp?examcode=050-681. Pass4sureofficial.com is a reputable IT certification examination guide, study guides and.

198 views • 7 slides