human: Given a node-centered hypergraph: <hypergraph>, where nodes represent authors and hyperedges represent groups of authors who co-authored the same paper.

Details of the hypergraph:
Center node: "Secure Multiparty Computation Goes Live"
  Abstract: In this note, we report on the first large-scale and practical application of secure multiparty computation, which took place in January 2008. We also report on the novel cryptographic protocols that were used.

Connected through hyperedge HE-1 (induced by source paper "General secure multi-party computation from any linear secret-sharing scheme"):
  with members:
    - "A characterization of span program size and improved lower bounds for monotone span programs"
    - "Distributed Pseudo-random functions and KDCs"
    - "Secure outsourced computation of iris matching"

Connected through hyperedge HE-2 (induced by source paper "Multiparty computation for dishonest majority: from passive to active security at low cost"):
  with members:
    - "Fast computation on encrypted polynomials and applications"

Question: Please tell me which research area the center author belongs to. The 4 classes are: Computer science, Mathematics, Engineering, Economics, Psychology, Business. Directly output the class name.

gpt: Computer science