Re: Will Ada-95 Programs Written in MS Windows Run in MacOS and Linux Without Some Tweaking.

[Simon Wright <simon@pushface.org>]

Austin Obyrne <austin.obyrne@hotmail.com> writes:

> I am the first to admit that this cryptography has very high
> ciphertext expansion but I cannot understand it being 870 Megabytes
> for the example you gave. I have no doubt you are right.

Each character is written as 3 integers, each occupying 11
characters. I've put a new line between every group of 3 integers,
whereas you put a new line where there's a new line in the original (I
think; anyway, not a good idea when the input isn't text), => 34
characters per byte (35 on Windows).

34 * 27_014_786 = 918_502_724 (875 MB).

> Most of what you say is technically beyond my ken also but its is very
> encouraging that you have not decided to condemn it out of hand as a
> lost cause like for instance the current complexity-theoretic crypto
> that is headed for the scrap heap.

My interest is in helping people to get code working right, not in
cryptography; I'd probably use GPG if I needed to.

It seems to me that yours is a symmetric-key scheme (I can't read the
documentation on your site because you've packaged up multiple PDF files
in one, which is a feature that's not supported by Mac Preview, and I'm
not going to install Acrobat).