Re: cryptsetup support for dm-crypt suspend/resume

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On Fri, Aug 28, 2009 at 04:28:56PM +0200, Martin Milata wrote:
> Using these commands, it should be possible to temporarily throw out the
> encryption key without unmounting the filesystem or removing the
> mapping. That would require support in cryptsetup, though.
 
I added support for that to device mapper ages back.

1. suspend device
2. send message 'key wipe'

later

1. send message 'key set <key>'
2. resume device

Can be done from command line 'dmsetup' or from an application using direct
libdevmapper library calls.

Alasdair

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