Re: Elliptic curves
 From: Kristian Gjøsteen <kristiag+news@xxxxxxxxxxxx>
 Date: Fri, 7 Aug 2009 20:14:55 +0000 (UTC)
mm <nowhere@net> wrote:
a écrit :
Let me quote what you wrote: "All we need is a group whose order
is difficult to compute (except to the one who built this group)."
This is wrong. To prove this, I gave an example where you can compute
roots without using the group order.
Let me elaborate on the example:
In 1984, it was hard to compute the number of points on an elliptic curve.
If we believe you, an RSAvariant using elliptic curves over finite
fields would have been secure in 1984.
No. When I was talking of the order of a group based on an EC, I was not
talking of an EC over a finite field.
I know, we all know about elliptic curves over rings.
If you can't be bothered reading what I write, I won't bother writing.

Kristian Gjøsteen
.
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