SHA1 collisions proven possisble

Patrick W. Gilmore patrick at
Fri Feb 24 17:11:46 UTC 2017

On Feb 24, 2017, at 12:04 PM, Vincent Bernat <bernat at> wrote:
> ❦ 23 février 2017 21:16 -0500, "Patrick W. Gilmore" <patrick at> :
>> A couple things will make this slightly less useful for the attacker:
>> 	1) How many people are not going to keep a copy? Once both docs are be
>> 	   found to have the same hash, well, game over.
> But if a transaction is automated, it may be too late. For example, if
> the document is a bank transfer slip.

If I can control the bank side of presenting an automated transfer slip, I really don’t need to worry about SHA-1 collisions. I already have all your money.


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