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 eavesdropper s correct decision in gaussian and fading wiretap channels using lattice codes"):
  Abstract: In this paper, the probability of Eve the Eavesdropper's correct decision is considered both in the Gaussian and Rayleigh fading wiretap channels when using lattice codes for the transmission. #R##N#First, it is proved that the secrecy function determining Eve's performance attains its maximum at y=1 on all known extremal even unimodular lattices. This is a special case of a conjecture by Belfiore and Sol\'e. Further, a very simple method to verify or disprove the conjecture on any given unimodular lattice is given. #R##N#Second, preliminary analysis on the behavior of Eve's probability of correct decision in the fast fading wiretap channel is provided. More specifically, we compute the truncated inverse norm power sum factors in Eve's probability expression. The analysis reveals a performance-secrecy-complexity tradeoff: relaxing on the legitimate user's performance can significantly increase the security of transmission. The confusion experienced by the eavesdropper may be further increased by using skewed lattices, but at the cost of increased complexity.

Includes members:
  Member "diversity multiplexing gain tradeoff a tool in algebra":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "probability estimates for fading and wiretap channels from ideal class zeta functions")
  Member "on a conjecture by belfiore and sol e on some lattices":
    also connected through other hyperedges:
      (none)
  Member "an algebraic look into mac dmt of lattice space time codes":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "probability estimates for fading and wiretap channels from ideal class zeta functions")
  Member "lattice code design for the rayleigh fading wiretap channel":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "well rounded lattices towards optimal coset codes for gaussian and fading wiretap channels")
  Member "unimodular lattices for the gaussian wiretap channel":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "on the secrecy gain of ell modular lattices")
  Member "secrecy gain a wiretap lattice code design":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "a survey of physical layer security techniques for 5g wireless networks and challenges ahead")

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)