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seen Apr 19 at 23:24

Oct
11
comment Avalanche noise RNG for one-time pad use
Wow that was one of the most thorough answers I've come across on these forums. Thanks for taking the time and for such good input!
Oct
10
comment Avalanche noise RNG for one-time pad use
@WilliamHird I just ordered one, so we'll see :) I have no intention of using it for highly sensitive stuff, but I would like to have the ability to generate fairly to very good one time pads. geeky fun. the price is OK as well compared to the £400 alternatives.
Oct
10
comment Avalanche noise RNG for one-time pad use
entropykey.co.uk/tech well this is all info I have i'm afraid, and I'm not really too gifted when it comes to the technicalities, but maybe it tells you more than it does me. @WilliamHird
Oct
9
accepted Avalanche noise RNG for one-time pad use
Oct
9
comment Avalanche noise RNG for one-time pad use
yes it probably wouldn't be fast at all, but nevertheless I think I'll contact them regarding the access to raw output. One benefit of one-time pads though, assuming a large enough key is physically delivered to the intended reciever, say a friend, that friend could then at any point recieve an encrypted message and safely decifer it should need be. Certainly it is not practical for most things but for that sort of use it's perfect (ish, your point about integrity stands).
Oct
9
asked Avalanche noise RNG for one-time pad use
Sep
20
awarded  Supporter
Sep
8
awarded  Student
Sep
8
awarded  Scholar
Sep
8
accepted Are picture files “random enough” to be usable as a one-time pad?
Sep
8
comment Are picture files “random enough” to be usable as a one-time pad?
I see, thanks for the help. I know that key distribution issues and practicality makes it outdated, but the concept of "perfect security" (at least the cryptological part) is intriguing.
Sep
8
comment Are picture files “random enough” to be usable as a one-time pad?
I see, so despite the ridiculous number of combinations the pixels in a photo provide, the fact that there is a limit at all, makes it insecure? I appologize if I seem a bit thick, but it's hard to understand how the scattering of light such as that picked up by a camera does not fill the above criteria. The thought was to reduce key generation time but now I'm all confused (that's a good thing though :)
Sep
8
awarded  Analytical
Sep
8
comment Are picture files “random enough” to be usable as a one-time pad?
Thanks for the thorough and useful answer. I do understand your point about repetition, however I'm not sure I managed to follow you on the useful entropy bit. Wouldn't the unpredictable nature of a large picture result in sufficient entropy for every bit involved, be it after a thorough shuffling or for example hashing pixel nr 1 with nr 10, 2 with 11 and so on?
Sep
7
asked Are picture files “random enough” to be usable as a one-time pad?