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Re: South African Law on Crypto Providers

On Thu, Oct 03, 2002 at 08:30:34AM -0600, Joe Moore wrote:
> Jeff Licquia <licquia@debian.org> wrote:
> (quoting the relevant law)
> > There is a definitions section, in which we find:
> > 
> > -----
> > "cryptography product" means any product that makes use of
> > cryptographic techniques and is used by a sender or recipient of data
> > messages for the purposes of ensuring--
> > (a) that such data can be accessed only by relevant persons;
> > (b) the authenticity of the data;
> > (c) the integrity of the data; or
> > (d) that the source of the data can be correctly ascertained;
> Wouldn't TCP and UDP checksum functions fall into "ensuring the integrity of
> the data"?

I don't think those checksums use "cryptographic techniques", but
SYN cookies might fall under this definition.  Also, using a strong
pseudorandom algorithm for generating TCP sequence numbers is a
cryptographic technique.

Richard Braakman

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