[cryptography] Unbreakable crypto?

James A. Donald jamesd at echeque.com
Sat Mar 21 20:40:17 EDT 2015


On 2015-03-22 10:34, James A. Donald wrote:
> On 2015-03-22 06:13, Lee wrote:
>> Would a commonly available large binary file make a good one-time pad?
>> Something like ubuntu-14.10-desktop-amd64.iso12 maybe..

I wrote:
> Before you asked the question, probably would have made a good one time
> pad.
>
> Not any more.

Of course, it was never really a one time pad, merely security by 
obscurity - which is quite good, until it is quite bad.



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