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Old 2009-06-16, 13:55   #1
plandon
 
May 2009
Loughborough, UK

22·11 Posts
Thumbs down SHA-1 Crypto Hash weakened

The 160 bit SHA-1 crypto hash has been further weakened.

There is a collision attack (not a full break) that allows 252 attempts, within the range of a distributed attack.

http://www.theregister.co.uk/2009/06...ture_weakness/

Cameron McDonald
Philip Hawkes, and Josef Pieprzyk

Centre for Advanced Computing, Algorithms and Cryptography

Department of Computing, Macquarie University
http://eprint.iacr.org/2009/259.pdf

There is now an open competition for a new crypto hash able to withstand 2256 attempts.
http://www.theregister.co.uk/2008/11/04/secure_hash_competition/
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