Featured Research

from universities, journals, and other organizations

New record in the area of prime number decomposition of cryptographically important numbers

Date:
January 10, 2010
Source:
Ecole Polytechnique Fédérale de Lausanne
Summary:
An international team of scientists has obtained the prime factors of the RSA challenge number RSA-768, using the Number Field Sieve.

An international team of scientists from EPFL (Switzerland), INRIA (France), NTT (Japan), CWI (The Netherlands) and Bonn University (Germany), has obtained the prime factors of the RSA challenge number RSA-768, using the Number Field Sieve. The calculation took less than 2000 core years on modern CPUs.

Extrapolating the trend from previous records in this area (512-bit in 1999, 663-bit in 2005, and the current 768-bit in 2009), it is reasonable to expect that 1024-bit keys will exhibit a similar degree of vulnerability within the next decade.

The result thus underlines the importance to adopt the new cryptographic key size standards that recommend phasing out usage of currently popular 1024-bit RSA keys. However, it also indicates that, assuming similar resources, users do not incur undue risks by continued usage of 1024-bit RSA keys during the next few years of transition to higher security levels.

The software used was to a considerable extent based on a package developed in the early 2000s at the Mathematics Institute at Bonn University, and further developed by the present collaborators. EPFL's Laboratory for Cryptologic Algorithms acted as main organizer, central data collection point, and contributed approximately a third to the overall computational effort.


Story Source:

The above story is based on materials provided by Ecole Polytechnique Fédérale de Lausanne. Note: Materials may be edited for content and length.


Cite This Page:

Ecole Polytechnique Fédérale de Lausanne. "New record in the area of prime number decomposition of cryptographically important numbers." ScienceDaily. ScienceDaily, 10 January 2010. <www.sciencedaily.com/releases/2010/01/100108090949.htm>.
Ecole Polytechnique Fédérale de Lausanne. (2010, January 10). New record in the area of prime number decomposition of cryptographically important numbers. ScienceDaily. Retrieved August 27, 2014 from www.sciencedaily.com/releases/2010/01/100108090949.htm
Ecole Polytechnique Fédérale de Lausanne. "New record in the area of prime number decomposition of cryptographically important numbers." ScienceDaily. www.sciencedaily.com/releases/2010/01/100108090949.htm (accessed August 27, 2014).

Share This




More Computers & Math News

Wednesday, August 27, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Hackerspace Provides Hackers Creative Haven

Hackerspace Provides Hackers Creative Haven

AP (Aug. 27, 2014) — HeatSync Labs, a so-called hackerspace in Mesa, Arizona provides members and the public alike a space to allow their creative juices to flow and make their tech dreams into a reality. (Aug 27) Video provided by AP
Powered by NewsLook.com
Smartphone App Tracks Your Heart Rate

Smartphone App Tracks Your Heart Rate

Ivanhoe (Aug. 27, 2014) — A new app that can track your heart rate 24/7 is available for download in your app store and its convenience could save your life. Video provided by Ivanhoe
Powered by NewsLook.com
Instagram's Hyperlapse Brings Pricy Stabilization To Phones

Instagram's Hyperlapse Brings Pricy Stabilization To Phones

Newsy (Aug. 26, 2014) — Instagram announced a new video stabilization app called Hyperlapse on Tuesday, bringing a high-end filming technique to peoples' iPhones. Video provided by Newsy
Powered by NewsLook.com
ICREACH: NSA Built A Google Of Americans' Info

ICREACH: NSA Built A Google Of Americans' Info

Newsy (Aug. 26, 2014) — The Intercept published an article Monday profiling what the online publication called NSA's very own Google of personal data. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins