🚀 go-pugleaf

  I like the idea.  It gave me a grin thinking that somebody from
a spook organization would have to go to a record store looking for the
latest CD by "Prince" or even "Billy and the Boingers"!

> Have I forgotten something?

  One problem would be that the CD doesn't really contain random
bits.  A musical note follows some rules about placement so that the
delta between bytes may be small.  This gives, in essence, a psuedo-
random number because one could predict what the next value taken from
the CD might be.  Repetition also reduces the randomness.  Consider a
Philip Glass composition versus a selection with a wider melodic and
dynamic range.

  This method is not a one-time pad.  You should not reuse that part of
the CD again for a different message.  A destructive read would accomplish
that but then the evidence of what part of a CD is good/bad would help
someone trying to guess what track/sectors were used for a new message.

Bob Devine

PS. What happens if the encrypted data is played backwards? :-)