Re: [Cryptography] Keeping backups (was Re: Separating concerns

2013-09-05 Thread Peter Gutmann
Phillip Hallam-Baker hal...@gmail.com writes: To backup the key we tell the device to print out the escrow data on paper. Let us imagine that there there is a single sheet of paper which is cut into six parts as follows: You read my mind :-). I suggested more or less this to a commercial

Re: [Cryptography] Keeping backups (was Re: Separating concerns

2013-09-03 Thread Phillip Hallam-Baker
Want to collaborate on an Internet Draft? This is obviously useful but it can only be made useful if everyone does it in the same way. On Tue, Sep 3, 2013 at 10:14 AM, Peter Gutmann pgut...@cs.auckland.ac.nzwrote: Phillip Hallam-Baker hal...@gmail.com writes: To backup the key we tell the

Re: [Cryptography] Keeping backups (was Re: Separating concerns

2013-08-31 Thread Peter Saint-Andre
On 8/29/13 11:30 AM, Perry E. Metzger wrote: On Wed, 28 Aug 2013 20:04:34 +0200 Faré fah...@gmail.com wrote: One thing that irks me, though, is the problem of the robust, secure terminal: if everything is encrypted, how does one survive the loss/theft/destruction of a computer or harddrive?

Re: [Cryptography] Keeping backups (was Re: Separating concerns

2013-08-30 Thread Eugen Leitl
On Thu, Aug 29, 2013 at 01:30:35PM -0400, Perry E. Metzger wrote: On Wed, 28 Aug 2013 20:04:34 +0200 Faré fah...@gmail.com wrote: One thing that irks me, though, is the problem of the robust, secure terminal: if everything is encrypted, how does one survive the loss/theft/destruction of a

[Cryptography] Keeping backups (was Re: Separating concerns

2013-08-29 Thread Perry E. Metzger
On Wed, 28 Aug 2013 20:04:34 +0200 Faré fah...@gmail.com wrote: One thing that irks me, though, is the problem of the robust, secure terminal: if everything is encrypted, how does one survive the loss/theft/destruction of a computer or harddrive? So, as has been discussed, I envision people

Re: [Cryptography] Keeping backups (was Re: Separating concerns

2013-08-29 Thread zooko
On Thu, Aug 29, 2013 at 01:30:35PM -0400, Perry E. Metzger wrote: So, as has been discussed, I envision people having small cheap machines at home that act as their cloud, and the system prompting them to pick a friend to share encrypted backups with. The Least-Authority Filesystem is

Re: [Cryptography] Keeping backups (was Re: Separating concerns

2013-08-29 Thread Phillip Hallam-Baker
On Thu, Aug 29, 2013 at 1:30 PM, Perry E. Metzger pe...@piermont.comwrote: On Wed, 28 Aug 2013 20:04:34 +0200 Faré fah...@gmail.com wrote: One thing that irks me, though, is the problem of the robust, secure terminal: if everything is encrypted, how does one survive the