On Thu, Feb 17, 2011 at 12:31, Jeffrey Walton <[email protected]> wrote:
>
> When the collisions were engineered using the extra data, what digest
> was in play? MD2 or MD5? I would be surprised if someone could do it
> with SHA-1, and bet against it with near certainty when using SHA-2 or
> Whirlpool.
>

SHA-1. Here's a good explanation of the mechanics:
http://www.mail-archive.com/[email protected]/msg06537.html


Geoff

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