Re: Applesoft Reference Manual -- Blue Book - unlocked

[pitz <pitz.wong@gmail.com>]

On Jul 15, 1:48 pm, justahobby <justaho...@ists.com> wrote:
>
> oh waht they heck - if you can already print & copy paste from the
> secured version, seems the security just made some programs choke.
>

... which is why PDF restrictions, IMHO, are really lame.  If there's
one channel (viewing) to extract the information without a password,
then it's relatively trivial to extract all that data and save it off
to come up with an equivalent unrestricted file.  To really restrict
the data, all channels have to require the password -- but then, to
view the document, the password also has to be sent out (maybe
separately).

To my knowledge, neither science nor math has come up with a mechanism
for allowing a data stream to be decrypted with any of "N > 1" keys.
Even public/private key cryptography relies on a matching pair of
keys.  Maybe the math geniuses out there from the next generation can
figure out how to encrypt/decrypt using a trio of keys (i.e., either
one of two "decrypt" keys can alone be used to decrypt a data stream)
beyond the concept of symmetric and asymmetric keys.

... I think I've had too much Star Trek movies for the day ...