On Fri, 15 Mar 2002, Jason Badry wrote:

> It isn't my intention to offend either of you, as Xmail and Xmail-WAI are
> great programs.  My focus is more on security, and I do in fact have a
> firewall with VPN and am somewhat knowledgable about the various
> encryptions/etc.  No matter how secure a system is, or I think it is, I
> just always have a concern with passwords stored in any file
> plain-text.  It is difficult to feel 100% confident that nobody will ever
> get access to that file, and then if the people with those passwords reused
> them anywhere, it could open many other doors.
>
> I was previously using QPopper with sasl and apop configured in
> Linux.  Now, I was quite happy to see your Win2K implementations, and this
> is why I switched over.  QPopper did have an option to force users to use
> APOP or other methods, so I was inquiring about this.  Perhaps in a future
> release it might be an option to consider.
>
> Now I understand your responses and there are reasons for the plain-text at
> this time.  I would encourage you and others though to use hashes as you
> have in Xmail if possible, but always try and avoid leaving passwords in
> files, no matter how secure the file system appears.  You just never know
> what Microsoft/other vulnerability will show up next.

Hashes are one way algos, i cannot use them to store passwords because i
need to retrieve the clear text one. I could use encryption to store them
( i mean an encryption more strong than the stupid xor ) but if :

1) you setup file/dir permissions correctly

and

2) someone is still able to crack the OS to get aceess to the file

this someone will very likely be able to use a debugger to retrieve the
used algo and/or encryption keys. Since Xmail needs clear text passwords,
it cannot be stronger the the OS it's relying on ...



- Davide


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