mersenneforum.org - View Single Post - SHA-1 Crypto Hash weakened

plandon · 2009-06-16, 13:55

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/

2009-06-16, 13:55	#1
plandon May 2009 Loughborough, UK 2²·11 Posts	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/