human: Given a node-centered hypergraph: <hypergraph>, where nodes represent papers and hyperedges represent sets of papers co-cited by a source paper.

Details of the hypergraph:
Center node: "opening the doors to dynamic camouflaging harnessing the power of polymorphic devices"
  Abstract: Hardware-centric security threats have emerged in every stage of the IC supply chain. Prior defenses have been developed to protect against intellectual property (IP) piracy at different stages. However, so far only logic locking can protect the IP end to end. We present dynamic camouflaging to thwart IP reverse engineering at all stages in the supply chain. We exploit the multi-functionality, post-fabrication reconfigurability, and run-time polymorphism of spin-based devices, specifically the magneto-electric spin-orbit (MESO) device. Leveraging these properties, dynamic camouflaging is resilient to state-of-the-art attacks such as SAT, approximate SAT (AppSAT) and HackTest, and can further impede side-channel analysis. For MESO-based full-chip dynamic camouflaging we anticipate massive improvements in power (7,400x), performance (5.9x), and area (73x) over spin- and CMOS-based camouflaging. We outline the prospects of dynamic camouflaging for error-tolerant image processing applications.

Connected through hyperedge HE-1 (induced by source paper "hardware security for and beyond cmos technology an overview on fundamentals applications and challenges"):
  with members:
    - "towards secure composition of integrated circuits and electronic systems on the role of eda"
    - "exploiting spin orbit torque devices as reconfigurable logic for circuit obfuscation"
    - "smart secure magnetoelectric antiferromagnet based tamper proof non volatile memory"
    - "a modern approach to ip protection and trojan prevention split manufacturing for 3d ics and obfuscation of vertical interconnects"
    - "a new paradigm in split manufacturing lock the feol unlock at the beol"
    - "spin orbit torque devices for hardware security from deterministic to probabilistic regime"
    - "protect your chip design intellectual property an overview"
    - "zombieload cross privilege boundary data sampling"

Connected through hyperedge HE-2 (induced by source paper "protect your chip design intellectual property an overview"):
  with members:
    - "functional analysis attacks on logic locking"
    - "a new paradigm in split manufacturing lock the feol unlock at the beol"
    - "srclock sat resistant cyclic logic locking for protecting the hardware"
    - "best of both worlds integration of split manufacturing and camouflaging into a security driven cad flow for 3d ics"
    - "concerted wire lifting enabling secure and cost effective split manufacturing"
    - "sat based reverse engineering of gate level schematics using fault injection and probing"
    - "advancing hardware security using polymorphic and stochastic spin hall effect devices"
    - "rethinking split manufacturing an information theoretic approach with secure layout techniques"

Question: Please tell me which class the center node 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)