human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "on the complexity of anonymous communication through public networks"):
  Abstract: Anonymous channels allow users to connect to websites or communicate with one another privately. Assume that either Alice or Allison is communicating with (a possibly corrupt) Bob. To protect the sender, we seek a protocol that provably guarantees that these two scenarios are indistinguishable to an adversary that can monitor the traffic on all channels of the network and control the internal operations in a constant fraction of the nodes. #R##N#Onion routing is the method of choice for achieving anonymous communication, used for example by Tor. In an onion routing protocol, messages travel through several intermediaries before arriving at their destinations; they are wrapped in layers of encryption (hence they are called ``onions''). In this paper, we give the first rigorous characterization of the complexity of onion routing protocols for anonymous communication through public networks. We show that in order to provide anonymity, an onion routing scheme requires each participant to transmit, on average, a superlogarithmic number of onions. We match these negative results with a protocol in which every participant creates a polylogarithmic number of onions and participates in a polylogarithmic number of transmissions.

Includes members:
  Member "tempest temporal dynamics in anonymity systems":
    also connected through other hyperedges:
      (none)
  Member "practical and provably secure onion routing":
    also connected through other hyperedges:
      (none)
  Member "atom horizontally scaling strong anonymity":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "encode shuffle analyze privacy revisited formalizations and empirical evaluation")
  Member "raptor routing attacks on privacy in tor":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "blind adversarial network perturbations")
  Member "riposte an anonymous messaging system handling millions of users":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "prifi low latency anonymity for organizational networks")
  Member "the melbourne shuffle improving oblivious storage in the cloud":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "what storage access privacy is achievable with small overhead")
  Member "calibrating data to sensitivity in private data analysis":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "locally private hypothesis selection")
  Member "probabilistic analysis of onion routing in a black box model":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "practical and provably secure onion routing")

Question: Please tell me which class the source paper 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)