'Hash' presentation slideshows

CSE 332 Data Abstractions: B Trees and Hash Tables Make a Complete Breakfast

CSE 332 Data Abstractions: B Trees and Hash Tables Make a Complete Breakfast. Kate Deibel Summer 2012. The national data structure of the Netherlands. hash tables. Hash Tables. A hash table is an array of some fixed size Basic idea: The goal:

1.01k views • 86 slides

CSE 326: Data Structures Part 5 Hashing

CSE 326: Data Structures Part 5 Hashing. Henry Kautz Autumn 2002. Midterm. Monday November 4th Will cover everything through hash tables No homework due that day, but a study sheet and practice problems on trees and hashing will be distributed 50 minutes, in class

4.45k views • 55 slides

Hash Tables

Hash Tables. Tonga Institute of Higher Education. Introduction. Hash tables are another data structure that can hold data. Advantages Hash tables are very good at insertion and searching No matter how much data you have, insertions, searches and sometimes deletions are close to O(1) time

767 views • 53 slides

Lecture #10

Lecture #10. Hash Tables. Objectives. Understand the basic structure of a hash table and its associated hash function Understand what makes a good (and a bad) hash function Understand how to deal with collisions Open addressing Separate chaining Be able to implement a hash table.

697 views • 52 slides

Hashing

1.11k views • 46 slides

Hashing & Hash Tables

751 views • 46 slides

Hash Function

Hash Function. Contents. Hash Functions Dedicated Hash Functions Useful for lightweight authentication in RFID system Message Authentication Codes CBC-MAC Nested MAC Collusion Search Attacks SHA-3. Hash function. {0,1} d. d > r. h(). hash, hash code/value/result

595 views • 43 slides

Hash Function

Hash Function. Contents. Hash Functions Dedicated Hash Functions Useful for lightweight authentication in RFID system Message Authentication Codes CBC-MAC Nested MAC Collusion Search Attacks. Hash function. {0,1} d. Compress a binary string with an arbitrary

578 views • 35 slides

Sets and Maps

Sets and Maps. Chapter 9. Chapter Objectives. To understand the Java Map and Set interfaces and how to use them To learn about hash coding and its use to facilitate efficient search and retrieval

454 views • 32 slides

Secure routing in multi-hop wireless networks (II)

Secure routing in multi-hop wireless networks (II). secured ad hoc network routing protocols; routing security in sensor networks;. outline. 1 Securing ad hoc network routing protocols 2 Secure routing in sensor networks. Some secure ad hoc network routing protocols.

507 views • 31 slides

CSE 326: Data Structures More Hashing Techniques

CSE 326: Data Structures More Hashing Techniques. Hannah Tang and Brian Tjaden Summer Quarter 2002. Remember This List?. How should we resolve collisions? What should the table size be? What should the hash function be? How well does hashing work in the real world?

419 views • 27 slides

Hash Functions

470 views • 24 slides

Chapter 12: Hash and MAC Algorithms

Fourth Edition by William Stallings Lecture slides by Lawrie Brown (modified by Prof. M. Singhal, U of Kentucky). Chapter 12: Hash and MAC Algorithms. Hash and MAC Algorithms. Hash Functions condense arbitrary size message to fixed size by processing message in blocks

739 views • 22 slides

Audit Control Environment

Audit Control Environment. Mike Smorul UMIACS. Issues surrounding asserting integrity. Threats to Integrity of Digital Archives Hardware/media degradation Hardware/software malfunction Operational errors Security breaches, malicious alterations Technology evolution

361 views • 20 slides

ITIS 6010/8010: Wireless Network Security

ITIS 6010/8010: Wireless Network Security. Weichao Wang. Secure Efficient Ad Hoc Distance Vector (SEAD) Is based on DSDV Use hash chain to accomplish authentication and avoid DoS Assumptions: The diameter of the network is shorter than m hops Use hash chains to authenticate route updates

287 views • 16 slides

Department of Computer Engineering Faculty of Engineering Prince of Songkla University

Department of Computer Engineering Faculty of Engineering Prince of Songkla University. 240-222 Computer Programming Techniques Slide Presentation by Pichaya Tandayya Taught by Pichaya Tandayya. 240-204 Computer Programming Techniques Semester 1, 2004. 19. Misc. Objectives of these slides:

337 views • 15 slides

Lecture 12 Distributed Hash Tables

307 views • 14 slides

Hash Sorting for Triplet Matching

Hash Sorting for Triplet Matching. Jinyuan Wu, M. Wang For BTeV collaboration Dec. 2002. Hash Sorter. 7. 6. 5. 4. 3. 2. 1. 0. Hash Sorting and Then?. DATA. DATA. Directly send to C algorithm. Send to hardware algorithm and then C algorithm. Hash Sorter. Hash Sorter. DSP.

261 views • 12 slides

OAuth Design Team Call

OAuth Design Team Call. 11 th February 2013. Security Design Requirements. Focus on symmetric key cryptography Use MAC Token spec as a starting point Lifetime of session key = Lifetime of access token Unless the sequence number space wraps Replay protection: Timestamp + [sequence number]

195 views • 8 slides

Nearest Neighbor Retrieval Using Distance-Based Hashing

Number of Queries. C(Q,N(Q)). D(Q,N(Q)). Database Group. Nearest Neighbor Retrieval Using Distance-Based Hashing Michalis Potamias and Panagiotis Papapetrou supervised by Prof George Kollios. Analysis. Probability of collision between any two objects:

135 views • 1 slides