[jdev] plaintext passwords hack

Peter Saint-Andre stpeter at stpeter.im
Thu Dec 17 09:39:48 CST 2009


On 12/17/09 6:47 AM, Kurt Zeilenga wrote:
> On Dec 17, 2009, at 5:35 AM, Simon Josefsson wrote:
> 
>> If you don't store the hashed password for SCRAM, you need to burn
>> CPU time for every login to derive the SCRAM hash keys.  That
>> doesn't scale well.
> 
> If you ONLY store the hash keys, you limit which password-based
> mechanisms can be used.  That might be okay in small enterprise
> deployments, but seems quite problematic for large (internet scale)
> service providers.

Agreed. That's the main reason we won't deploy hashed-only on the
backend plus SCRAM-only on the wire at jabber.org.

Peter

-- 
Peter Saint-Andre
https://stpeter.im/


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