Added Functions XII
Pure EC-ElGamal Cryptosystem
New Functions
ANSSI (frp256v1) Elliptic Curve
BLS12-381 Elliptic Curve (strictly for EC-ElGamal)
Koblitz (secp256k1) Elliptic Curve for ECDSA, ECDH and EC-ElGamal
Documentation
ANSSI FRP256v1: https://www.alvestrand.no/objectid/1.2.250.1.223.101.256.1.html
BLS12-381: https://electriccoin.co/blog/new-snark-curve/