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 survey on security issues in ad hoc routing protocols and their mitigation techniques"):
  Abstract: ABSTRACT --------------------------------------------------------------- Mobile Ad hoc Networks (MANETS) are transient networks ofmobile nodes, connected through wireless links, without any fixed infrastructure or central management. Due to the self-configuring nature of these networks, the topology is highly dynamic. This makes the Ad Hoc Routing Protocols in MANETS highly vulnerable to serious security issues. In this paper, we survey the common security threats and attacks and summarize the solutions suggested in the survey to mitigate these security vulnerabilities. Keywords- Ad hoc Routing Protocols, AODV, DSDV, DSR, MANETs, Security attacks, Performance Analysis ------------------------------------------------------------------------------------------------------------------------------------------------- Date of Submission: January 26, 2012 Date of Acceptance: February 20, 2012 -------------------------------------------------------------------------------------------------------------------------------------------------

Includes members:
  Member "rism reputation based intrusion detection system for mobile ad hoc networks":
    also connected through other hyperedges:
      - Hyperedge HE-1 (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-2 (induced by source paper "application of multi factor authentication in internet of things domain")
  Member "automatic firewall rules generator for anomaly detection systems with apriori algorithm":
    also connected through other hyperedges:
      (none)
  Member "an lsb data hiding technique using prime numbers":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "steganalysis detecting lsb steganographic techniques")
  Member "a semi distributed reputation based intrusion detection system for mobile adhoc networks":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "secure management of logs in internet of things")
  Member "a distributed trust and reputation framework for mobile ad hoc networks":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "homomorphic encryption theory and application")

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)