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SHA1 hash collisions a million times faster.

19-08-2005 8:18pm

#1

Capt'n Midnight

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http://www.theregister.co.uk/2005/08/19/sha-1_attack/

Chinese cryptographers that demonstrated earlier attacks against SHA-0 and SHA-1, along with Andrew Yao and Frances Yao, have discovered a way to produce a collision in SHA-1 over just 2^63 hash operations compared to 2^69 hash operations previously. A brute force attack should take 2^80 operations.

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Comments

#2 20-08-2005 4:24am

Martyr

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Adi Shamir and a student, more info here

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#3 20-08-2005 3:42pm

rsynnott

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Poor VIA!

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