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

On Nov 7, 3:38 am, wangyong <hell...@xxxxxxx> wrote:
On 11 7 , 4 23 , William Hughes <wpihug...@xxxxxxxxxxx> wrote:



On Nov 7, 12:09 am, wangyong <hell...@xxxxxxx> wrote:

-----------a change in form but not in content,you just use the
probability when
c is not fixed.
you use the the joint probability of M,K and C when c is not fixed.

I use the joint probability distribution of M,K and C.

a change in form but not in content

but the the joint probability of M,K and C is not the same when c is
fixed as when c is not fixed.

There is no such thing as the joint probability distribution of
M,K and C when c is fixed.

- William Hughes

what you do is fixe the prior probability of m ,then use it to decide
the probability of c when k is uniform , then reverse understand the
probability of M.
The case is not random decided by the c fixed and k uniform.
The probability of m is decided by the prior.that is similar to
circular proof.


The proof "If the prior probability of M is not uniform then
the prior probability of M is not uniform" is circular. This
is not however the proof I am giving.

The proof "If the prior probability of M is not uniform then
the probability distribution on K is not uniform for a fixed C"
is not circular.

- William Hughes

.

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