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: "control flow integrity precision security and performance"
  Abstract: Memory corruption errors in C/C++ programs remain the most common source of security vulnerabilities in today's systems. Control-flow hijacking attacks exploit memory corruption vulnerabilities to divert program execution away from the intended control flow. Researchers have spent more than a decade studying and refining defenses based on Control-Flow Integrity (CFI), and this technique is now integrated into several production compilers. However, so far no study has systematically compared the various proposed CFI mechanisms, nor is there any protocol on how to compare such mechanisms. #R##N#We compare a broad range of CFI mechanisms using a unified nomenclature based on (i) a qualitative discussion of the conceptual security guarantees, (ii) a quantitative security evaluation, and (iii) an empirical evaluation of their performance in the same test environment. For each mechanism, we evaluate (i) protected types of control-flow transfers, (ii) the precision of the protection for forward and backward edges. For open-source compiler-based implementations, we additionally evaluate (iii) the generated equivalence classes and target sets, and (iv) the runtime performance.

Connected through hyperedge HE-1 (induced by source paper "methodologies for quantifying re randomization security and timing under jit rop"):
  with members:
    - "is less really more towards better metrics for measuring security improvements realized through software debloating"
    - "on the effectiveness of type based control flow integrity"
    - "automatic heap layout manipulation for exploitation"
    - "block oriented programming automating data only attacks"

Connected through hyperedge HE-2 (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"
    - "cfi care hardware supported call and return enforcement for commercial microcontrollers"

Connected through hyperedge HE-3 (induced by source paper "silhouette efficient protected shadow stacks on embedded systems"):
  with members:
    - "sponge based control flow protection for iot devices"
    - "beebs open benchmarks for energy measurements on embedded platforms"

Connected through hyperedge HE-4 (induced by source paper "sok hardware security support for trustworthy execution"):
  with members:
    - "secloak arm trustzone based mobile peripheral control"
    - "reverse engineering x86 processor microcode"
    - "extracting secrets from encrypted virtual machines"
    - "sgxpectre stealing intel secrets from sgx enclaves via speculative execution"
    - "spectre attacks exploiting speculative execution"
    - "pac it up towards pointer integrity using arm pointer authentication"
    - "lord of the x86 rings a portable user mode privilege separation architecture on x86"
    - "severed subverting amd s virtual machine encryption"

Connected through hyperedge HE-5 (induced by source paper "speccfi mitigating spectre attacks using cfi informed speculation"):
  with members:
    - "context leakage free transient execution"
    - "smotherspectre exploiting speculative execution through port contention"
    - "store to leak forwarding leaking data on meltdown resistant cpus"
    - "zombieload cross privilege boundary data sampling"
    - "speculative buffer overflows attacks and defenses"
    - "netspectre read arbitrary memory over network"
    - "safespec banishing the spectre of a meltdown with leakage free speculation"
    - "spectre attacks exploiting speculative execution"

Connected through hyperedge HE-6 (induced by source paper "exploitation techniques and defenses for data oriented attacks"):
  with members:
    - "oei operation execution integrity for embedded devices"
    - "sok sanitizing for security"
    - "block oriented programming automating data only attacks"
    - "hardscope thwarting dop with hardware assisted run time scope enforcement"

Connected through hyperedge HE-7 (induced by source paper "supporting security sensitive tenants in a bare metal cloud"):
  with members:
    - "a secure cloud with minimal provider trust"
    - "powerhammer exfiltrating data from air gapped computers through power lines"
    - "m2 malleable metal as a service"

Connected through hyperedge HE-8 (induced by source paper "gpt conjecture understanding the trade offs between granularity performance and timeliness in control flow integrity"):
  with members:
    - "hcic hardware assisted control flow integrity checking"
    - "cryptographically enforced control flow integrity"

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)