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 "application of multi factor authentication in internet of things domain"):
  Abstract: Authentication forms the gateway to any secure system. Together with integrity, confidentiality and authorization it helps in preventing any sort of intrusions into the system. Up until a few years back password based authentication was the most common form of authentication to any secure network. But with the advent of more sophisticated technologies this form of authentication although still widely used has become insecure. Furthermore, with the rise of 'Internet of Things' where the number of devices would grow manifold it would be infeasible for user to remember innumerable passwords. Therefore, it's important to address this concern by devising ways in which multiple forms of authentication would be required to gain access to any smart devices and at the same time its usability would be high. In this paper, a methodology is discussed as to what kind of authentication mechanisms could be deployed in internet of things (IOT).

Includes members:
  Member "detection and prevention of botnets and malware in an enterprise network":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "secure management of logs in internet of things")
  Member "a multi dimensional approach towards intrusion detection system":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "secure management of logs in internet of things")
  Member "a multi factor security protocol for wireless payment secure web authentication using mobile devices":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "authentication systems in internet of things")
  Member "embedding secret data in html web page":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "comparative analysis of cryptography library in iot")
  Member "data hiding techniques using prime and natural numbers":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "comparative analysis of cryptography library in iot")
  Member "voice recognition algorithms using mel frequency cepstral coefficient mfcc and dynamic time warping dtw techniques":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "short range audio channels security survey of mechanisms applications and research challenges")
  Member "a semi distributed reputation based intrusion detection system for mobile adhoc networks":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "secure management of logs in internet of things")

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)