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: "cfi care hardware supported call and return enforcement for commercial microcontrollers"
  Abstract: With the increasing scale of deployment of Internet of Things (IoT), concerns about IoT security have become more urgent. In particular, memory corruption attacks play a predominant role as they allow remote compromise of IoT devices. Control-flow integrity (CFI) is a promising and generic defense technique against these attacks. However, given the nature of IoT deployments, existing protection mechanisms for traditional computing environments (including CFI) need to be adapted to the IoT setting. In this paper, we describe the challenges of enabling CFI on microcontroller (MCU) based IoT devices. We then present CaRE, the first interrupt-aware CFI scheme for low-end MCUs. CaRE uses a novel way of protecting the CFI metadata by leveraging TrustZone-M security extensions introduced in the ARMv8-M architecture. Its binary instrumentation approach preserves the memory layout of the target MCU software, allowing pre-built bare-metal binary code to be protected by CaRE. We describe our implementation on a Cortex-M Prototyping System and demonstrate that CaRE is secure while imposing acceptable performance and memory impact.

Connected through hyperedge HE-1 (induced by source paper "using name confusion to enhance security"):
  with members:
    - "pac it up towards pointer integrity using arm pointer authentication"
    - "block oriented programming automating data only attacks"
    - "control flow integrity precision security and performance"

Connected through hyperedge HE-2 (induced by source paper "pacstack an authenticated call stack"):
  with members:
    - "dr sgx automated and adjustable side channel protection for sgx using data location randomization"
    - "pac it up towards pointer integrity using arm pointer authentication"
    - "shining light on shadow stacks"
    - "cryptographically enforced control flow integrity"

Connected through hyperedge HE-3 (induced by source paper "pairs control flow protection using phantom addressed instructions"):
  with members:
    - "debloating software through piece wise compilation and loading"
    - "pac it up towards pointer integrity using arm pointer authentication"

Connected through hyperedge HE-4 (induced by source paper "pac it up towards pointer integrity using arm pointer authentication"):
  with members:
    - "dr sgx automated and adjustable side channel protection for sgx using data location randomization"
    - "memory tagging and how it improves c c memory safety"
    - "intel mpx explained an empirical study of intel mpx and software based bounds checking approaches"
    - "hardscope thwarting dop with hardware assisted run time scope enforcement"
    - "inferring fine grained control flow inside sgx enclaves with branch shadowing"

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)