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: "ironhide a secure multicore architecture that leverages hardware isolation against microarchitecture state attacks"
  Abstract: Modern microprocessors enable aggressive hardware virtualization that exposes the microarchitecture state of the processor due to temporal sharing of hardware resources. This paper proposes a novel secure multicore architecture, IRONHIDE that aims to mitigate both speculative and non-speculative microarchitecture state vulnerabilities. It introduces novel spatial allocation of hardware resources across two concurrent domains, i.e., a secure and an insecure application domain (referred to as clusters of cores). IRONHIDE enables strong isolation by disallowing sharing of any hardware structures across cluster boundaries to mitigate microarchitecture state attacks. To tackle speculative microarchitecture state vulnerabilities, this work introduces a novel insight that all speculative microarchitecture state exploits rely on a victim application to access secure cluster's memory regions. Thus, IRONHIDE incorporates a lightweight hardware check that detects such accesses, and stall them until they resolve. This mitigates potential speculative microarchitecture state attacks. Lastly, IRONHIDE enables dynamic hardware isolation by reallocating core-level resources across clusters to exploit multicore parallelism, while ensuring strong isolation for dynamically allocated resources.

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)