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: "cuda leaks a detailed hack for cuda and a partial fix"
  Abstract: Graphics processing units (GPUs) are increasingly common on desktops, servers, and embedded platforms. In this article, we report on new security issues related to CUDA, which is the most widespread platform for GPU computing. In particular, details and proofs-of-concept are provided about novel vulnerabilities to which CUDA architectures are subject. We show how such vulnerabilities can be exploited to cause severe information leakage. As a case study, we experimentally show how to exploit one of these vulnerabilities on a GPU implementation of the AES encryption algorithm. Finally, we also suggest software patches and alternative approaches to tackle the presented vulnerabilities.

Connected through hyperedge HE-1 (induced by source paper "enabling privacy preserving compute and data intensive computing using heterogeneous trusted execution environment"):
  with members:
    - "a survey of techniques for improving security of gpus"
    - "sgxio generic trusted i o path for intel sgx"
    - "vulnerable gpu memory management towards recovering raw data from gpu"
    - "deep residual learning for image recognition"
    - "very deep convolutional networks for large scale image recognition"

Connected through hyperedge HE-2 (induced by source paper "virtualization technologies and cloud security advantages issues and perspectives"):
  with members:
    - "dr sgx automated and adjustable side channel protection for sgx using data location randomization"
    - "cachezoom how sgx amplifies the power of cache attacks"
    - "hybis advanced introspection for effective windows guest protection"
    - "software grand exposure sgx cache attacks are practical"
    - "malware guard extension using sgx to conceal cache attacks"
    - "inferring fine grained control flow inside sgx enclaves with branch shadowing"
    - "security analysis of encrypted virtual machines"

Connected through hyperedge HE-3 (induced by source paper "a survey of techniques for improving security of gpus"):
  with members:
    - "vulnerable gpu memory management towards recovering raw data from gpu"
    - "buffer overflow vulnerabilities in cuda a preliminary analysis"
    - "a survey of methods for analyzing and improving gpu energy efficiency"

Connected through hyperedge HE-4 (induced by source paper "hybis advanced introspection for effective windows guest protection"):
  with members:
    - "dynamic and transparent analysis of commodity production systems"

Connected through hyperedge HE-5 (induced by source paper "investigating sram pufs in large cpus and gpus"):
  with members:
    - "secrets from the gpu"

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)