Generating EC domain parameters - ecgen

ecgen is a tool for generating Elliptic curve domain parameters. While working on generating some interesting EC domain parameters for ECTester I found out there aren’t really any good tools for doing so. Cryptographic libraries don’t offer generating custom curves, they just offer preset ones or let you set custom ones. The only tools I found were ECB, LiDIA/GEC, MIRACL and cm. They all have their drawbacks however, ECB is limited in what parameters are modifiable and is closed source, LiDIA is unmaintained, and cm also doesn’t support the flexibility in parameters I needed. To add to that I lost the link to MIRACL and could not remember it’s name. So ecgen is what I started working on.