[Cryptography] Introduction to EC that is actually an introduction?

Phillip Hallam-Baker phill at hallambaker.com
Wed Jan 28 17:42:03 EST 2015

On Wed, Jan 28, 2015 at 2:10 PM, Kent Borg <kentborg at borg.org> wrote:

> On 01/28/2015 10:32 AM, Phillip Hallam-Baker wrote:
>> I am being forced to give a talk on EC which requires me to understand it
>> to a rather deeper degree than hitherto. Or rather, at a lower level.
> I've always thought one of the best ways to learn something is to be
> scheduled to teach it: it focuses the mind, to anticipate every question
> and be sure I have a ready answer.
> Good luck!

Thanks all, am finding the DJB talk pretty useful.

What I use to explain the difficulty of Diffie Hellman is to show a plot of
a logarithm in regular math, nice smooth curve that people can see has an
easy to calculate inverse. Then I chop the curve into bits by introducing
modular arithmetic. Now it isn't nice and smooth.

Might be interesting seeing the graphical effect of the modular arithmetic
on the elliptic curve.

The Wierstrass curves that Certicom and most folk use to explain EC are
pretty much the worst ones to pick from the point of view of giving an
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