Hi,

many thanks for the clarifications. Fedora has a very nice and unobstrusive 
crypto 
setup but finding out the technical details involves looking into quite a few 
places.
The http://code.google.com/p/cryptsetup/ pages seems to have plenty of 
information
for a start.

>  (If you think about coldboot or something similar - dm-crypt provides 
> functions to
>  temporarily freeze device and empty keys and I also added support for this 
> to cryptsetup.
>  So the controlled suspend/resume to RAM can ask for LUKS passphrase and 
> unlock master key,
>  preventing active encryption keys in RAM.

that is a really godd idea - is there a howto somewhere? Coldboot is not my 
main worry
but it is certainly good to take reasonable precautions.

> If you know about some problem in dm-crypt, just let me know (or write to 
> dm-crypt mailing list).

I have some problems with hibernation which look like it might be related to 
the dm layer
but am not totally sure. Unfortunately it is rare enough that I could not catch 
it with
any of the remote debugging methods. I could only email a picture of a stack 
trace.

Richard
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