I am glad your mentioned elliptic curve cryptography, even though you
spelled it wrong.
From :
http://en.wikipedia.org/wiki/Elliptic_geometry
"The name "elliptic" is possibly misleading. It does not imply any
direct connection with the curve called an ellipse, but only a rather
far-fetched analogy. A central conic is called an ellipse or a
hyperbola according as it has no asymptote or two asymptotes.
Analogously, a non-Euclidean plane is said to be elliptic or
hyperbolic according as each of its lines contains no point at
infinity or two points at infinity."