>Would a commonly available large binary file make a good one-time pad? >Something like ubuntu-14.10-desktop-amd64.iso12 maybe..
Unlkely for two reasons. One is that the point of a one-time pad is that only the sender and recipient are supposed to have a copy. The other is that something like a Linux distribution has extremely obvious regularities, so it wouldn't be hard for a cryptographer to figure out what it was. The way you make a one time pad is to take a source of actual (not pseudo) randomness and record a lot of it in a form that is relatively easy to distribute securely, like a DVD-ROM. R's, John _______________________________________________ cryptography mailing list cryptography@randombit.net http://lists.randombit.net/mailman/listinfo/cryptography