'Key space' presentation slideshows

Information Security Frank Yeong-Sung Lin Department of Information Management National Taiwan University

1.06k views • 85 slides

CIT 380: Securing Computer Systems

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Unit 6 File Organization and Access Methods

Unit 6 File Organization and Access Methods. Contents. 6.1 Introduction 6.2 Indexing 6.3 Hashing 6.4 Pointer Chains 6.5 Compression Techniques 6.6 Differential File Organization. ??????????? Approaches to Access/Store Large Data. ??? ?? ?????? ????????. 6.1 Introduction.

1.58k views • 57 slides

Cryptography

Cryptography. Lecture 2. Announcements. Quiz Thursday 10 minutes Closed-book quiz. Survey. How many of you read the chapters I ask you to? How many of you are from math department? How many of you learned some preliminary crypto in some other classes?

731 views • 51 slides

Information Security: Cryptography (part 2)

Information Security: Cryptography (part 2). Dr. Shahriar Bijani Shahed University. Slides References. Matt Bishop, Computer Security: Art and Science , the author homepage, 2002-2004. Addam Schroll , Cryptography , Purdue university.

675 views • 50 slides

Andreas Savvides andreas.savvides@yale Office: AKW 212 Tel 432-1275 Course Website

Data Centric Storage using GHT Lecture 13 October 14, 2004 EENG 460a / CPSC 436 / ENAS 960 Networked Embedded Systems & Sensor Networks. Andreas Savvides andreas.savvides@yale.edu Office: AKW 212 Tel 432-1275 Course Website http://www.eng.yale.edu/enalab/courses/eeng460a.

617 views • 49 slides

Windows Passwords: Everything You Need To Know

Windows Passwords: Everything You Need To Know. Jesper M. Johansson Senior Security Strategist Security Technology Unit jesperjo@microsoft.com http://blogs.technet.com/jesper_johansson. Overview. How passwords are stored How passwords are used How passwords are attacked

790 views • 48 slides

CHAPTER 4: Classical (secret-key) cryptosystems

CHAPTER 4: Classical (secret-key) cryptosystems. In t his chapter we deal with some of the very old or quite old cryptosystems that were primarily used in the pre-computer era. IV054. These cryptosystems are too weak nowadays, too easy to break, especially with computers.

723 views • 47 slides

Sailfish: A Framework For Large Scale Data Processing

588 views • 45 slides

Towards Scalable and Robust Distributed Intrusion Alert Fusion with Good Load Balancing

Towards Scalable and Robust Distributed Intrusion Alert Fusion with Good Load Balancing. Zhichun Li, Yan Chen and Aaron Beach. Lab for Internet & Security Technology (LIST) http://list.cs.northwestern.edu Northwestern University. The Spread of CodeRed. Distributed IDSes.

449 views • 33 slides

Information Security CS 526 Topic 3

Information Security CS 526 Topic 3. Cryptography: One-time Pad, Information Theoretic Security, and Stream CIphers. Readings for This Lecture. Required reading from wikipedia One-Time Pad Information theoretic security Stream cipher Pseudorandom number generator. Begin Math.

419 views • 31 slides

Incrementally Improving Lookup Latency in Distributed Hash Table Systems

Incrementally Improving Lookup Latency in Distributed Hash Table Systems. Hui Zhang 1 , Ashish Goel 2 , Ramesh Govindan 1 1 University of Southern California 2 Stanford University. Outline. Latency stretch problem in Distributed Hash Table (DHT) systems, with Chord as an example

531 views • 31 slides

Altruistic Routing in P2P Networks: Solutions and Problems

Altruistic Routing in P2P Networks: Solutions and Problems. Sukumar Ghosh Alina Bejan Amlan Bhattacharya University of Iowa. Background. Background. Structured P2P networks provide a flat response to query processing.

415 views • 30 slides

WLAN SECURITY

WLAN SECURITY. TEAM NAME : Crypto_5 TEAM MEMBERS: Rajini Ananthoj Srimani Reddy Gatla Ishleen Kour Pallavi Murudkar Deepagandhi Vadivelu. Agenda. WLAN and architecture Security issues faced in WLAN Basic security of WLAN solutions for WLAN security 802.1X

819 views • 29 slides

Experience with NTLM v2 on Win2K in NT 4.0 Domain

Experience with NTLM v2 on Win2K in NT 4.0 Domain. Myung Bang Jefferson Lab Hepix-HepNT 2000 October 31, 2000. Authentication Protocols . NT uses 3 different authentication protocols Lan Manager (LM) Hash NTLM NTLM v2. Explanation of Auth. Protocols. LanMan Hash

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Informal Security Seminar: Key Pre-distribution Scheme for Wireless Sensor Networks

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ITIS 6010/8010 Wireless Network Security

276 views • 18 slides

Fundamentals of Computer Security

Fundamentals of Computer Security. The Mechanization of Ciphers: The Enigma. The Enigma Machine Arthur Scherbius, circa 1918. scrambling unit (3 rotors). reflector. entry wheel. lampboard. keyboard. Plugboard or Steckerboard. 3-rotor Enigma with Steckerboard. The Enigma at Work.

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FAWN: A Fast Array of Wimpy Nodes

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CRES: A C ontent-based R outing Substrat E for Large-Scale Data-Centric S ensor Networks

CRES: A C ontent-based R outing Substrat E for Large-Scale Data-Centric S ensor Networks. Cuong Pham, Duc Tran UMass Boston June 22, 2010. CRES: Routing. Cuong Pham, Duc Tran UMass Boston June 22, 2010. CRES: Results. 1479 nodes 500mx200m field 20m communication radius

140 views • 3 slides