[jdev] Case sensitive & jid

[Remy HAREL]

'Bonjour' Mathias,

Ok, thanks guys.... So now I 'm gonna use stringprep, but there is an 
implementation of stringprep with such profiles in jabberd 2 project 
please ? I'm looking for it in files until someone will help me...

Have a nice day,



Matthias Wimmer wrote:

>Hi Trejkaz!
>
>Trejkaz Xaoza schrieb am 2004-05-08 10:01:57:
>  
>
>>>Therefore md5(lowercase(jid_full)) would result in
>>>the same hash for two different addresses!
>>>      
>>>
>>That's actually a property of all hashes anyway.  Comes with the territory of 
>>reducing Y bytes to X bytes where X < Y.
>>    
>>
>
>No not really. Sure there are always different strings that are mapped
>to the same hash. But it's the property of hashes, that it is
>hard/impossible to generate a second string that has the same hash on
>purpose. (Else you could take a signature of one document and generate a
>second document for which this signature is valid too and which tells
>that the other person owes you 1,000,000 €.
>
>In the case of md5(lowercase(jid_full)) it would be trivial to generate
>two addresses, that are mapped to the same hash.
>
>In case you think that this is "only" possible for resources and one
>would only break his own addresses ... nope ... there are components
>that allow different users to habe the same node and domain, but a
>different resource: e.g. conference servers.
>
>
>Tot kijk
>    Matthias
>    
>  
>
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-- 
Remy Harel - remy.harel at gicm.fr
G.I.C.M - Distributed Systems & IT
Linux Registered User #224740