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Computer Networks

Computer Networks

Computer Networks Security Internet no central authority end systems in control no central knowledge of connections no per-packet billing legal issues not well understood anonymity is easy Internet/Telco Comparison Telephone System central authority network in control

By Patman
(227 views)

AES algorithm

AES algorithm

AES algorithm. 128 bits/16 bytes. Byte substitution. Shift Row. A round:. Mix Column. Key Addition. 4 bytes. AES algorithm. a set of 16 bytes from the file to be encrypted. B Y S T U E B. s. S H I R F O T W. Mix column. Mix column. Mix column. Mix column.

By paul
(461 views)

luibPc eKy fsueIrtcrnartu

luibPc eKy fsueIrtcrnartu

luibPc eKy fsueIrtcrnartu oeJ dlofrdO E5 7E9 0M 2r0 6a Public Key Infrastructure Joe Oldford EE 579 02 Mar 06 Spartans vs. Persians Overview Introduction Classical (symmetric) Cryptography Public Key (asymmetric) Cryptography Digital Signatures Public Key Infrastructures

By Patman
(312 views)

E-Mail Capturing & E-mail Encryption

E-Mail Capturing & E-mail Encryption

E-Mail Capturing & E-mail Encryption. 60-564 Project Mohit Sud Dr. Aggarwal University of Windsor. Statement of the Problem. Electronic mail (e-mail) messages are one of the most common forms of communication today. But are our e-mail messages kept private and secure?

By Solomon
(292 views)

Chapter 8: Network Security

Chapter 8: Network Security

Chapter goals: Understand principles of network security: cryptography and its many uses beyond “confidentiality” authentication message integrity key distribution. Chapter 8: Network Security. What is network security?.

By elina
(250 views)

The RSA Cryptosystem

The RSA Cryptosystem

The RSA Cryptosystem. Dan Boneh Stanford University. The RSA cryptosystem. First published: Scientific American, Aug. 1977. (after some censorship entanglements) Currently the “work horse” of Internet security: Most Public Key Infrastructure (PKI) products.

By Sharon_Dale
(276 views)

Web-Centric Collaboration & Information Sharing

Web-Centric Collaboration & Information Sharing

Web-Centric Collaboration & Information Sharing. Overview/Status of the Defense Collaboration Network International Collaboration Network. DCN/ICN Team Nov 10, 2000. OSD LAMP Program Robert S. Kidwell, ManTech VP & Sr Tech Dir enterprise Integration Center. DCN/ICN.

By Angelica
(293 views)

Internetwork Technologies

Internetwork Technologies

Internetwork Technologies. Internetwork Security. Authentication Is that you? Nonrepudiation No denying it Access control Hands off! Reputation Name = MUD. What are you trying to secure?. Confidentiality Avoid snooping Encryption? Integrity Deletes, changes Backups Availability

By Olivia
(312 views)

Fluency with Information Technology Third Edition by Lawrence Snyder

Fluency with Information Technology Third Edition by Lawrence Snyder

Chapter 13: Shhh, It's a Secret: Privacy and Digital Security. Fluency with Information Technology Third Edition by Lawrence Snyder. Privacy: Whose Information Is It?. What is privacy? Examine a transaction of buying Dating for Total Dummies

By Jimmy
(428 views)

Lecture 17

Lecture 17

Lecture 17. Security Introduction Cryptography basics Web Security and Vulnerabilities Network SecurityTools. What is Network Security?.

By niveditha
(220 views)

Dr.Tech. Göran Pulkkis Arcada Polytechnic ( arcada.fi/english ) Espoo, Finland

Dr.Tech. Göran Pulkkis Arcada Polytechnic ( arcada.fi/english ) Espoo, Finland

Introduction to - Cryptography - PKI (Public Key Infrastructure) - Secure Email with PGP (Pretty Good Privacy). Dr.Tech. Göran Pulkkis Arcada Polytechnic ( http://www.arcada.fi/english ) Espoo, Finland. Cryptographic algorithms. Secret Key Cryptography. Public Key Cryptography.

By bernad
(245 views)

How to Design Usable IT Security Mechanisms Using the Example of Email Encryption

How to Design Usable IT Security Mechanisms Using the Example of Email Encryption

How to Design Usable IT Security Mechanisms Using the Example of Email Encryption. By: Rudra Gupta. Overview . INTRODUCTION. One More problem. Guidelines. G1 “Open to all Users:. G2 “Empowered Users”. G3 “No jumping through hoops”.

By MikeCarlo
(295 views)

Using the MyProxy Online Credential Repository

Using the MyProxy Online Credential Repository

Using the MyProxy Online Credential Repository. Jim Basney National Center for Supercomputing Applications University of Illinois jbasney@ncsa.uiuc.edu. What is MyProxy?. Independent Globus Toolkit add-on since 2000 To be included in Globus Toolkit 4.0 A service for securing private keys

By daniel_millan
(166 views)

The RSA Cryptosystem

The RSA Cryptosystem

The RSA Cryptosystem. Dan Boneh Stanford University. The RSA cryptosystem. First published: Scientific American, Aug. 1977. (after some censorship entanglements) Currently the “work horse” of Internet security: Most Public Key Infrastructure (PKI) products.

By liam
(217 views)

EEC-484/584 Computer Networks

EEC-484/584 Computer Networks

EEC-484/584 Computer Networks. Lecture 16 Wenbing Zhao wenbing@ieee.org. Outline. Reminder Quiz#5 4/30 4-6pm Final Revised Wiki Page due 5/5 midnight Presentation: request for waiver will be handled FCFS Waiver request must have a revision summary and a url to your revised wiki page

By betty_james
(188 views)

On Public Key Encryption from Noisy Codewords

On Public Key Encryption from Noisy Codewords

Yuval Ishai Technion & UCLA. On Public Key Encryption from Noisy Codewords. Eli Ben- Sasson ( Technion ) Iddo Ben-Tov ( Technion ) Ivan Damgård ( Aarhus) Noga Ron- Zewi ( IAS & DIMACS ). The Big Picture. Theory of cryptography has many open questions

By Gabriel
(265 views)

Meeting the Privacy Goals of NSTIC in the Short Term

Meeting the Privacy Goals of NSTIC in the Short Term

Meeting the Privacy Goals of NSTIC in the Short Term. Presentation at the 2011 Internet Identity Workshop Francisco Corella and Karen P. Lewison Pomcor. Contents.

By salena
(446 views)

Security: An Overview of Cryptographic Techniques

Security: An Overview of Cryptographic Techniques

Security: An Overview of Cryptographic Techniques. With slides from: Debabrata Dash, Nick Feamster, Gregory Kesden, Vyas Sekar and others. Cryptography, Cryptographic Protocols and Key Distribution. Authentication Mutual Authentication Private/Symmetric Keys Public Keys Key Distribution.

By arleen
(431 views)

Introduction to Cryptography

Introduction to Cryptography

Introduction to Cryptography. Based on: William Stallings, Cryptography and Network Security. Chapter 10. Other Public-Key Cryptosystems. Diffie-Hellman Key Exchange. First published public-key algorithm A number of commercial products employ this key exchange technique

By Anita
(427 views)

a digital data encryption program Created by Phil Zimmerman Presented by Netiva Caftori

a digital data encryption program Created by Phil Zimmerman Presented by Netiva Caftori

Pretty Good Privacy. a digital data encryption program Created by Phil Zimmerman Presented by Netiva Caftori. A word about PGP one of the strongest encryption tools available. Encryption is the process whereby codes are used to attempt to conceal the meaning of a message

By Faraday
(223 views)

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