Date: Thu, 2 Dec 2004 10:35:59 -0800 From: John-Mark Gurney <gurney_j@resnet.uoregon.edu> To: Ivan Voras <ivoras@fer.hr> Cc: freebsd-geom@freebsd.org Subject: Re: More geom classes? Message-ID: <20041202183559.GH19624@funkthat.com> In-Reply-To: <41AF3FCE.1030405@fer.hr> References: <41AF3FCE.1030405@fer.hr>
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Ivan Voras wrote this message on Thu, Dec 02, 2004 at 17:16 +0100:
> I think I misunderstood something. Do you propose this (for 2 disks):
>
> for each block to be written:
> a) generate a block of random data
> b) write random data to first disk
> c) write random data xor user data to second disk
>
> So, as long as any person has both disks, the data can be recovered.
> Where's the security in that?
No, the point is to take say, a CDROM which you have preloaded with pure
random data, i.e. burncd /dev/random, then you create a proper sized
partition, then using gxor you meld the two...
Then for any read/write requests, you take the data, read from the OTP,
xor the data, and pass it on... Then when you go away, you take the
cdrom, w/o it, there is no data...
I like the idea, and it would be a perfect project from someone who is
learning geom...
--
John-Mark Gurney Voice: +1 415 225 5579
"All that I will do, has been done, All that I have, has not."
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