I am looking for a manageable introduction to elliptical curves from a High School background. I am willing to read material. I'm aiming for a introductory undergraduate level of understanding of such curves and their properties. I want to do a little personal research into these curves and maybe explore some simple properties on my own. I came across them because I heard that this was the math behind some cryptographic methods and also the blockchain concept uses this.
Thank you
Rational Points on Elliptic Curves
Authors: Silverman, Joseph H., Tate, John T.
May still be a bit advanced but would probably be the most approachable.