Re: Confirmation of Shannon's Mistake about Perfect Secrecy of One-time-pad

On Oct 26, 11:40 pm, wangyong <hell...@xxxxxxx> wrote:
On 10 26 , 12 17 , William Hughes <wpihug...@xxxxxxxxxxx> wrote:



On Oct 24, 11:53 pm, wangyong <hell...@xxxxxxx> wrote:

There is no connection between the probablity distribution
on the plaintext and that on the cyphertext. Thus, knowing the
value of the cyphertext does not tell us anything about the
distribution of the plaintext.

----you should obey perfect secrecy, I state OPt has good
attribute.

You also state that knowing the value of the cyphertext does
tell us something about the distribution of the plaintext (i.e.
if all we know is that the value of the cypertext is 0
then we know that the probability distribution of the plaintext is
uniform).
Are you now admitting this statement is false?

- William Hughes

0---------------------where? cite it.


I did give a paraphrase

if all we know is that the value of the cypertext is 0
then we know that the probability distribution of
the plaintext is uniform

The actural quote from you original post in this thread was

When only considering C=0 and the cryptosystem
(regardless of the prior probability of plaintext),
we can educe that the plaintexts are equally likely

Are you now admitting this statement is false?

- William Hughes

.

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