[TYPO3-core] RFC: #10201: Duplicate cHash Values

[Dan Osipov]

That is correct. Still, there is a small chance, that two different sets 
of GETvars will produce the same md5 hash - but it is very slim.

Dan Osipov
Calkins Media
http://danosipov.com/blog/

Steffen Kamper wrote:
> Hi,
> 
> i think Bernhard's approach is wrong as we have a given situation and 
> build a md5 of this situation, in this case the GET-vars. Having the 
> same set of GETvars we always get the same hash, we don't build random 
> hashes.
> So - building md5 hash of a given set is unique, you don't get the same 
> hash with other combination.
> 
> But using shortMD5 the chance that the first chars are equal is much 
> bigger, and as you see it happens in real life
> 
> vg Steffen