Key

1024-bit RSA encryption cracked by carefully starving CPU of electricity

Source: http://www.engadget.com/2010/03/09/1024-bit-rsa-encryption-cracked-by-carefully-starving-cpu-of-ele/

Since 1977, RSA public-key encryption has protected privacy and verified authenticity when using computers, gadgets and web browsers around the globe, with only the most brutish of brute force efforts (and 1,500 years of processing time) felling its 768-bit variety earlier this year. Now, three eggheads (or Wolverines, as it were) at the University of Michigan claim they can break it simply by tweaking a device’s power supply. By fluctuating the voltage to the CPU such that it generated a single hardware error per clock cycle, they found that they could cause the server to flip single bits of the private key at a time, allowing them to slowly piece together the password. With a small cluster of 81 Pentium 4 chips and 104 hours of processing time, they were able to successfully hack 1024-bit encryption in OpenSSL on a SPARC-based system, without damaging the computer, leaving a single trace or ending human life as we know it. That’s why they’re presenting a paper at the Design, Automation and Test conference this week in Europe, and that’s why — until RSA hopefully fixes the flaw — you should keep a close eye on your server room’s power supply.

1024-bit RSA encryption cracked by carefully starving CPU of electricity originally appeared on Engadget on Tue, 09 Mar 2010 02:47:00 EST. Please see our terms for use of feeds.

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Tuesday, March 9th, 2010 Uncategorized No Comments

What is Web 3.0? Characteristics of Web 3.0

2009 06 16 What Is Web 3.0

2009 06 16 What Is Web 3.0 – Presentation Transcript

  1. What is Web 3.0? Dr. Augustine Fou June 16, 2009. June 16, 2009.
  2. Evolution of the Internet microprocessor 40 yrs 10 yrs 20 yrs 5 yrs present web internet 2.5 yrs social networks e-commerce 1.5 yrs Web 1.0 Web 2.0 Web 3.0? June 16, 2009.
  3. Evolution of the “Web” content commerce search social networks social content social search social commerce As each stage reaches critical mass, the next stage is tipped into present June 16, 2009.
  4. Key Characteristics present web 1.0 web 2.0 web 3.0
    • Speedy
    • more timely information and more efficient tools to find information
    • Collaborative
    • actions of users amass, police, and prioritize content
    • Trust-worthy
    • users establish trust networks and hone trust radars
    • Content
    • content destination sites and personal portals
    • Search
    • critical mass of content drives need for search engines
    • Commerce
    • commerce goes mainstream; digital goods rise
    • Ubiquitous
    • available at any time, anywhere, through any channel or device
    • Individualized
    • filtered and shared by friends or trust networks
    • Efficient
    • relevant and contextual information findable instantly

June 16, 2009.

  1. Illustrative Examples – retail/shopping present web 1.0 web 2.0 web 3.0
    • what friends bought or want to buy
    • drag-to-share items which friends know friends are looking for
    • item collections
    • value in the aggregation

overstock.com amazon.com FB app: MyFaveThings

    • contextual reviews
    • reviews of reviews
    • what others bought
    • individualized recommendations

June 16, 2009.

  1. Illustrative Examples – social networks present web 1.0 web 2.0 web 3.0
    • aggregates all your online identities
    • syndicates all your updates to all social networks
    • social actions visible to friends
    • trust networks across geography, time, and interests
    • collection of personal homepages

geocities.com facebook.com peoplebrowsr.com June 16, 2009.

  1. Illustrative Examples – restaurant reviews present web 1.0 web 2.0 web 3.0
    • Yelp content vetted through a user’s trust network and individual recommendations made based on situation and need, in real-time
    • user submitted reviews
    • related items based on similarity of user preferences
    • infrequent publication
    • centralized editorial control

zagat‘s yelp need reco for great Italian + GPS + Yelp 5-star Babbo, been there, love it June 16, 2009.

  1. Illustrative Examples – photos present web 1.0 web 2.0 web 3.0
    • real-time, contextual “do you like this knit shirt?”
    • friends give immediate feedback
    • share photos with friends and strangers
    • enable visitors to tag and comment
    • individual albums

kodakgallery.com flickr.com ? June 16, 2009.

  1. Illustrative Examples – real estate present web 1.0 web 2.0 web 3.0
    • information vetted by fellow users, recommended directly an in context
    • listings plus relevant information like school zones, comparable sales, alerts
    • listings based on parameters

corcoran.com streeteasy.com trulia iphone app June 16, 2009.

  1. Illustrative Examples – encyclopedia present web 1.0 web 2.0 web 3.0
    • content is ubiquitous and available through any channel or device
    • trust network proactively forwards relevant info to user who needs it
    • created, updated, and edited (policed) by user actions
    • digitized version of printed encyclopedia

britannica.com wikipedia.com chacha.com June 16, 2009.

  1. Illustrative Examples – online coupons present web 1.0 web 2.0 web 3.0
    • coupons delivered contextually and proactively when user needs it (without the user even asking for it)
    • instant feedback
    • community action makes it more accurate and useful for others
    • collection of online coupons – value in the aggregation

dealcatcher.com retailmenot.com June 16, 2009.

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