human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge groups authors who co-authored the same paper.

Details of the hypergraph:
Center hyperedge (induced by source paper "Public-Key Encryption Schemes with Auxiliary Inputs"):
  Abstract: We construct public-key cryptosystems that remain secure even when the adversary is given any computationally uninvertible function of the secret key as auxiliary input (even one that may reveal the secret key information-theoretically). Our schemes are based on the decisional Diffie-Hellman (DDH) and the Learning with Errors (LWE) problems.

Includes members:
  Member "Exposure-resilient functions and all-or-nothing transforms":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "Construction of extractors using pseudo-random generators (extended abstract)")
  Member "Practical leakage-resilient pseudorandom generators":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "Towards Fresh Re-Keying with Leakage-Resilient PRFs: Cipher Design Principles and Analysis")
  Member "Dual projective hashing and its applications -- lossy trapdoor functions and more":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "A unified approach to deterministic encryption: new constructions and a connection to computational entropy")

Question: Please tell me which research area the co-authored paper (i.e., the source paper of the center hyperedge) belongs to. The 4 classes are: Computer science, Mathematics, Engineering, Economics, Psychology, Business. Directly output the class name.

gpt: Computer science