On 09/08/2013 11:49 AM, Perry E. Metzger wrote:
That said, your hypothetical seems much like imagine that you can
float by the power of your mind alone. The construction of such a
cipher with a single master key that operates just like any other key
seems nearly impossible, and that should be
On Sep 8, 2013, at 8:37 PM, James A. Donald wrote:
Your magic key must then take any block of N bits and magically
produce the corresponding plaintext when any given ciphertext
might correspond to many, many different plaintexts depending
on the key
Suppose that the mappings from 2^N
On Sat, 07 Sep 2013 20:14:10 -0700 Ray Dillinger b...@sonic.net
wrote:
On 09/06/2013 05:58 PM, Jon Callas wrote:
We know as a mathematical theorem that a block cipher with a back
door *is* a public-key system. It is a very, very, very valuable
thing, and suggests other mathematical
On 2013-09-09 4:49 AM, Perry E. Metzger wrote:
Your magic key must then take any block of N bits and magically
produce the corresponding plaintext when any given ciphertext
might correspond to many, many different plaintexts depending
on the key. That's clearly not something you can do.
