oss-sec mailing list archives
Re: A new way of writing secure data backups, combining RAID and one time pads.
From: Yves-Alexis Perez <corsac () debian org>
Date: Tue, 05 Apr 2011 22:31:54 +0200
On mar., 2011-04-05 at 19:13 +0200, klondike wrote:
El 05/04/11 07:17, Gareth Randall escribió:Hi, I have published a free software project called "Triplyx", which writes data to a set of three storage devices in such a way that if any one of them is lost or stolen, it cannot be used to recover the data. Any two storage devices can be brought together to recover the data. It was created for use with offsite data backups. The concept is simple, although I have never seen it done in a commercial or open source product.Well long ago I tried to make a similar thing to divide a private key so a x out of the n people allowed to see the document could recover the data, the problem is that although the solution was trivial for small numbers it started getting complex as the n increased.
That looks just like Secret Sharing, for which there exist implementations, like Sham's Secret Sharing Scheme http://point-at-infinity.org/ssss/ which you might find helpful. Regards, -- Yves-Alexis
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Current thread:
- A new way of writing secure data backups, combining RAID and one time pads. Gareth Randall (Apr 05)
- Re: A new way of writing secure data backups, combining RAID and one time pads. klondike (Apr 05)
- Re: A new way of writing secure data backups, combining RAID and one time pads. Yves-Alexis Perez (Apr 05)
- Re: A new way of writing secure data backups, combining RAID and one time pads. klondike (Apr 05)