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 "a simplified coding scheme for the broadcast channel with complementary receiver side information under individual secrecy constraints"):
  Abstract: This paper simplifies an existing coding scheme for the two-receiver discrete memoryless broadcast channel with complementary receiver side information where there is a passive eavesdropper and individual secrecy is required. The existing coding scheme is simplified in two steps by replacing Wyner's secrecy coding with Carleial-Hellman's secrecy coding as well as removing additional randomness in the common satellite codeword. This simplified scheme retains the existing achievable individual secrecy rate region. Not least, the simplified scheme requires fewer message splits and fewer random components.

Includes members:
  Member "individual secrecy for broadcast channels with receiver side information":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "vulnerabilities of massive mimo systems to pilot contamination attacks")
  Member "individual secrecy for the broadcast channel":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "can marton coding alone ensure individual secrecy")
  Member "brute force searching the typical set and guesswork":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "capacity achieving guessing random additive noise decoding")
  Member "secret key generation using correlated sources and channels":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "biometric and physical identifiers with correlated noise for controllable private authentication")
  Member "secrecy via sources and channels":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "biometric and physical identifiers with correlated noise for controllable private authentication")
  Member "the wiretap channel with feedback encryption over the channel":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "a survey of physical layer security techniques for 5g wireless networks and challenges ahead")
  Member "secret communication with feedback":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "physical layer security protocol for poisson channels for passive man in the middle attack")

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.IT(Information Theory)