Elliptic Curve, Diffie Hellman, Discrete Log, Elgamal Encryption.
know a or b and cannot trace back from Q1 or Q2. This trapdoor function has the exact same idea as the discrete log problem. Private Information: a, b Public Information: p, P, Q1, Q2 El-Gamal Public Key Cryptosystem Our old friends Alice and Bob wants to figure out a way to encrypt/decrypt a