Re: Userland encrypted filesystem that root cannot access.

From: H. Peter Anvin (hpa@transmeta.com)
Date: Mon Feb 21 2000 - 04:13:17 EST


Glenn McGrath wrote:
>
> Im just a bit out of my depth here, but would it be possible to have
> encrypted memory ?
> Like the physical memory is encrypted but it is mapped to virtual memory
> which is unencrypted, to get to this secure virtual memory, you would
> have to use a special encryption module.
> This may narrow the security risk to how the encryption module behaves
> within the kernel.
> I though of this when remember ages ago there was "ram doubler" software
> for other operating systems that compressed memory, they allowed
> programs to reside in memmory in compresed form.
>
> Like i said, im out of my depth, maybe this would be just shifting the
> problem, i hope im not just demonstrating my ignorance.
>

It would, and I am afraid you do.

        -hpa

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