[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Python Random Number Generator for OTP

On Jul 24, 2013, at 10:45 PM, Yan Zhu <[email protected]> wrote:

> Has anyone tried using an entropy broker (see https://lwn.net/Articles/546428/) for sharing entropy between devices on a physical network? https://we.riseup.net/debian/entropy#entropy-key seems to suggest that this is something that people do.

Some time ago, I ended up being a mentor in some coding thing. Vagueness is there to protect the guilty.

The project in question was for some program to communicate using one-time pads. That the pad in a one-time-pad must be full-entropy is why it's relevant. The question came up of how you distribute the pads, because that's the key problem (nyuck, nyuck) in doing a one-time-pad system.

The solution the person came up with was to encrypt them with PGP using a 4K-bit RSA key. I leave commentary on this system to the reader, and won't spoil the thought experiment with my own, at the moment.

This entropy broker strikes me as exactly the same sort of understanding.


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://cpunks.org/pipermail/cypherpunks/attachments/20130730/ea6ef4a1/attachment.html>