On 3/21/15, James A. Donald <[email protected]> wrote: > 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.
How is a one time pad not security by obscurity? As soon as the opponent gets a copy it's game over. Lee _______________________________________________ cryptography mailing list [email protected] http://lists.randombit.net/mailman/listinfo/cryptography
