One-Time Pads as Attack Method
Paul Bradley
paul at fatmans.demon.co.uk
Sun May 11 09:21:34 PDT 1997
> Is posting a TRANSFORM such as a 'OTP' that converts copyrighted material A
> into copyrighted material B a violation of anything, I wonder... You could
> convert everybody's Internet Explorer into a ZIP file containing a setup
> and executable for Netscape 3.0!!
Technically, an OTP has a problem here because the two files, A and B,
must be exactly the same size. Padding can solve this of course.
Legally though this is an interesting question: As I understand it (and I
have only a very limited understanding of the law) copyrights make
illegal the act of copying the material, rather than the act of owning
it. Therefore, if I do A XOR B where A is say micro$oft access, and B is
my transformation, and get C which is a copy of, say, micro$oft excel, I
have commited no crime. Does anyone on here with a knowledge of the law
have an opinion on this?
> >Do you think that Microsoft has a one-time-pad that will convert
> >Netscape 3.1 into Word for Windows?
Of course it need not even be an OTP, we could use a mapping to permute
the bits in one file onto the bits in another. If this were illegal under
current law, what would be illegal, the program, the owning of it, the
act of using it to create the copyrighted software C????????????
Datacomms Technologies data security
Paul Bradley, Paul at fatmans.demon.co.uk
Paul at crypto.uk.eu.org, Paul at cryptography.uk.eu.org
Http://www.cryptography.home.ml.org/
Email for PGP public key, ID: FC76DA85
"Don`t forget to mount a scratch monkey"
More information about the cypherpunks-legacy
mailing list