Re: SHA1 broken

From: Paul Rubin (//phr.cx_at_NOSPAM.invalid)
Date: 02/16/05 

Date: 16 Feb 2005 09:12:56 -0800

"tomstdenis@gmail.com" <tomstdenis@gmail.com> writes:
> It means a given characteristic through the cipher cannot have a
> probability of occuring above a given threshold. Early today I quoted
> 2^-72 [iirc] for 4 rounds... that means any four round differential
> pattern would hold 2^-72 of the time.

OK, say I check for the pattern 2^20 times. Does that give me a 2^-52
chance of spotting the differential? Is that a distinguishing attack?

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