Assess graduate students' recall of core public-key cryptography algorithms—RSA, Elliptic Curve Cryptography (ECC), Diffie–Hellman, and ElGamal—focusing on canonical definitions, primary security assumptions (integer factorization and discrete logarithm), basic key-generation and encryption/handshake steps, typical parameter choices, and common use cases; scope limited to high-level conceptual recall (no proofs or problem solving).