Linux-kernel mailing list archive 1999-23,: R: Do not use stock RedHat 6.0 kernels with SMBFS! [OFF-TOPIC]

# R: Do not use stock RedHat 6.0 kernels with SMBFS! [OFF-TOPIC]

Justin Hahn (jehahn@raven.bu.edu)
Fri, 11 Jun 1999 13:05:01 -0400

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A Wik writes:

aw> On Thu, 10 Jun 1999, Steve Dodd wrote:
>>
>> Rubbish. Store a secure one-way hash of the password. The problem is just
>> in choosing a secure algorithm.
aw>
aw> No, the one-way hashes are still sensitive (more so than a shadow file).

Explain this. Any decent hash function has the following properties:

- non invertible (or not trivially so)
- collision-"proof", that is it is computationally difficult to find
two inputs which result in the same output.

(note that a good hash function need not be bijective, and I'd
conjecture that it shouldn't be)

I don't see the sensitivity here.

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