human: Given a node-centered hypergraph: <hypergraph>, where nodes represent papers and hyperedges represent sets of papers co-cited by a source paper.

Details of the hypergraph:
Center node: "perfectly secure message transmission revisited"
  Abstract: Achieving secure communications in networks has been one of the most important problems in information technology. Dolev, Dwork, Waarts, and Yung have studied secure message transmission in one-way or two-way channels. They only consider the case when all channels are two-way or all channels are one-way. Goldreich, Goldwasser, and Linial, Franklin and Yung, Franklin and Wright, and Wang and Desmedt have studied secure communication and secure computation in multi-recipient (multicast) models. In a ``multicast channel'' (such as Ethernet), one processor can send the same message--simultaneously and privately--to a fixed subset of processors. In this paper, we shall study necessary and sufficient conditions for achieving secure communications against active adversaries in mixed one-way and two-way channels. We also discuss multicast channels and neighbor network channels.

Connected through hyperedge HE-1 (induced by source paper "effects of topology knowledge and relay depth on asynchronous consensus"):
  with members:
    - "gracefully degrading consensus and k set agreement in directed dynamic networks"
    - "reliable communication in a dynamic network in the presence of byzantine faults"
    - "approximate consensus in highly dynamic networks the role of averaging algorithms"
    - "reaching approximate byzantine consensus with multi hop communication"
    - "consensus of multi agent networks in the presence of adversaries using only local information"
    - "iterative approximate byzantine consensus under a generalized fault model"
    - "iterative approximate byzantine consensus in arbitrary directed graphs"
    - "robustness of complex networks with implications for consensus and contagion"

Connected through hyperedge HE-2 (induced by source paper "communication efficient secret sharing"):
  with members:
    - "explicit constructions of high rate mds array codes with optimal repair bandwidth"
    - "centralized repair of multiple node failures with applications to communication efficient secret sharing"
    - "staircase codes for secret sharing with optimal communication and read overheads"
    - "optimal locally repairable and secure codes for distributed storage systems"
    - "codes with locality for two erasures"
    - "a family of optimal locally recoverable codes"
    - "zigzag codes mds array codes with optimal rebuilding"
    - "exact scalar minimum storage coordinated regenerating codes"

Connected through hyperedge HE-3 (induced by source paper "using feedback for secrecy over graphs"):
  with members:
    - "on secure network coding with nonuniform or restricted wiretap sets"
    - "polytope codes against adversaries in networks"
    - "coding for errors and erasures in random network coding"

Connected through hyperedge HE-4 (induced by source paper "exact byzantine consensus in directed graphs"):
  with members:
    - "iterative byzantine vector consensus in incomplete graphs"
    - "consensus of multi agent networks in the presence of adversaries using only local information"
    - "iterative approximate byzantine consensus under a generalized fault model"
    - "iterative approximate byzantine consensus in arbitrary directed graphs"
    - "robustness of complex networks with implications for consensus and contagion"

Connected through hyperedge HE-5 (induced by source paper "efficient and distributed secret sharing in general networks"):
  with members:
    - "distributed storage codes with repair by transfer and nonachievability of interior points on the storage bandwidth tradeoff"
    - "regenerating codes for errors and erasures in distributed storage"
    - "interference alignment in regenerating codes for distributed storage necessity and code constructions"
    - "network codes resilient to jamming and eavesdropping"
    - "explicit construction of optimal exact regenerating codes for distributed storage"

Question: Please tell me which class the center node belongs to. The 40 classes are: cs.NA(Numerical Analysis), cs.MM(Multimedia), cs.LO(Logic in Computer Science), cs.CY(Computers and Society), cs.CR(Cryptography and Security), cs.DC(Distributed, Parallel, and Cluster Computing), cs.HC(Human-Computer Interaction), cs.CE(Computational Engineering, Finance, and Science), cs.NI(Networking and Internet Architecture), cs.CC(Computational Complexity), cs.AI(Artificial Intelligence), cs.MA(Multiagent Systems), cs.GL(General Literature), cs.NE(Neural and Evolutionary Computing), cs.SC(Symbolic Computation), cs.AR(Hardware Architecture), cs.CV(Computer Vision and Pattern Recognition), cs.GR(Graphics), cs.ET(Emerging Technologies), cs.SY(Systems and Control), cs.CG(Computational Geometry), cs.OH(Other Computer Science), cs.PL(Programming Languages), cs.SE(Software Engineering), cs.LG(Machine Learning), cs.SD(Sound), cs.SI(Social and Information Networks), cs.RO(Robotics), cs.IT(Information Theory), cs.PF(Performance), cs.CL(Computation and Language), cs.IR(Information Retrieval), cs.MS(Mathematical Software), cs.FL(Formal Languages and Automata Theory), cs.DS(Data Structures and Algorithms), cs.OS(Operating Systems), cs.GT(Computer Science and Game Theory), cs.DB(Databases), cs.DL(Digital Libraries), cs.DM(Discrete Mathematics). Directly output the class name.

gpt: cs.CR(Cryptography and Security)