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 "mosquito covert ultrasonic transmissions between two air gapped computers using speaker to speaker communication"):
  Abstract: In this paper we show how two (or more) airgapped computers in the same room, equipped with passive speakers, headphones, or earphones can covertly exchange data via ultrasonic waves. Microphones are not required. Our method is based on the capability of a malware to exploit a specific audio chip feature in order to reverse the connected speakers from output devices into input devices - unobtrusively rendering them microphones. We discuss the attack model and provide technical background and implementation details. We show that although the reversed speakers/headphones/earphones were not originally designed to perform as microphones, they still respond well to the near-ultrasonic range (18kHz to 24kHz). We evaluate the communication channel with different equipment, and at various distances and transmission speeds, and also discuss some practical considerations. Our results show that the speaker-to-speaker communication can be used to covertly transmit data between two air-gapped computers positioned a maximum of nine meters away from one another. Moreover, we show that two (microphone-less) headphones can exchange data from a distance of three meters apart. This enables 'headphones-to-headphones' covert communication, which is discussed for the first time in this paper.

Includes members:
  Member "odini escaping sensitive data from faraday caged air gapped computers via magnetic fields":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "powerhammer exfiltrating data from air gapped computers through power lines")
  Member "magneto covert channel between air gapped systems and nearby smartphones via cpu generated magnetic fields":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "oops had the silly thing in reverse optical injection attacks in through led status indicators")
  Member "air jumper covert air gap exfiltration infiltration via security cameras infrared ir":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "oops had the silly thing in reverse optical injection attacks in through led status indicators")
  Member "xled covert data exfiltration from air gapped networks via router leds":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "oops had the silly thing in reverse optical injection attacks in through led status indicators")
  Member "fansmitter acoustic data exfiltration from speakerless air gapped computers":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "your noise my signal exploiting switching noise for stealthy data exfiltration from desktop computers")
  Member "on covert acoustical mesh networks in air":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "your noise my signal exploiting switching noise for stealthy data exfiltration from desktop computers")
  Member "airhopper bridging the air gap between isolated networks and mobile phones using radio frequencies":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "brightness leaking sensitive data from air gapped workstations via screen brightness")

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)