On 8/14/07, Pavel Machek <[EMAIL PROTECTED]> wrote:
> Hi!
>
> > > I think that adding the PK logic into suspend is an overkill...
> > > Best to support only symmetric operations, and load symmetric key from
> > > a file/handle as losetup does.
> >
> > The image is always encrypted with symmetric algo. If RSA is used
> > (optional) then the key for the symmetric encryption is random and the
> > PK is used to safely store the key in the header of the image; the
> > random key is encrypted with RSA and stored in the header, RSA private
> > key is (encrypted using the password at installation time) is also
> > stored in the header.
> > At resume the password is used to unlock the private key which is then
> > used to decrypt the random key.
> > IOW we don't use RSA to encrypt the whole image ;)
>
> (Can I put this into README?)

Sure :)

Luca

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