'Compute hash' diaporamas de présentation

Hash Tables - Motivation

Hash Tables - Motivation. Consider the problem of storing several ( key , value ) pairs in a data structure that would support the following operations efficiently Insert ( key, value ) Delete ( key, value ) Find ( key ) Data Structures we have looked at so far

559 views • 27 slides

Advanced Data Structures

363 views • 22 slides

One-way Hash Chain and Its Applications

One-way Hash Chain and Its Applications. Presenter: Hoa Nguyen Ngoc. 4. One way hash chain in RFID system. 2. Merkle Hash Tree. 3. Radio Frequency Identification (RFID). 1. One-way Hash Chain. Outline. 1. One Way Hash Chain. Good for authentication of the hash values.

427 views • 22 slides

CSCI-1680 Web Performance and Content Distribution

CSCI-1680 Web Performance and Content Distribution. Rodrigo Fonseca. Based partly on lecture notes by Scott Shenker and John Jannotti. Administrivia. Midterms returned One less homework! Homework 3 released next Thursday, last homework How is TCP doing?. Last time. HTTP and the WWW

281 views • 21 slides

Coordinated Sampling sans Origin-Destination Identifiers: Algorithms and Analysis

Coordinated Sampling sans Origin-Destination Identifiers: Algorithms and Analysis. Vyas Sekar, Anupam Gupta, Michael K. Reiter, Hui Zhang Carnegie Mellon University Univ. of North Carolina Chapel-Hill. Flow Monitoring is critical for effective Network Management. Traffic Engineering.

279 views • 20 slides

RFID SECURITY

RFID SECURITY. How Does RFID Work?. 02.3DFEX4.78AF51. EasyToll card #816. Radio signal (contactless) Range: from 3-5 inches to 3 yards. Tags (transponders) Attached to objects, call out their (unique) name and/or static data on a special radio frequency. Reader (transceiver)

337 views • 20 slides