human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "virtualization technologies and cloud security advantages issues and perspectives"):
  Abstract: Virtualization technologies allow multiple tenants to share physical resources with a degree of security and isolation that cannot be guaranteed by mere containerization. Further, virtualization allows protected transparent introspection of Virtual Machine activity and content, thus supporting additional control and monitoring. These features provide an explanation, although partial, of why virtualization has been an enabler for the flourishing of cloud services. Nevertheless, security and privacy issues are still present in virtualization technology and hence in Cloud platforms. As an example, even hardware virtualization protection/isolation is far from being perfect and uncircumventable, as recently discovered vulnerabilities show. The objective of this paper is to shed light on current virtualization technology and its evolution from the point of view of security, having as an objective its applications to the Cloud setting.

Includes members:
  Member "dr sgx automated and adjustable side channel protection for sgx using data location randomization":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "on the convergence of artificial intelligence and distributed ledger technology a scoping review and future research agenda")
  Member "cachezoom how sgx amplifies the power of cache attacks":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "copycat controlled instruction level attacks on enclaves for maximal key extraction")
  Member "hybis advanced introspection for effective windows guest protection":
    also connected through other hyperedges:
      (none)
  Member "software grand exposure sgx cache attacks are practical":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "distributed systems and trusted execution environments trade offs and challenges")
  Member "malware guard extension using sgx to conceal cache attacks":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "copycat controlled instruction level attacks on enclaves for maximal key extraction")
  Member "inferring fine grained control flow inside sgx enclaves with branch shadowing":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "copycat controlled instruction level attacks on enclaves for maximal key extraction")
  Member "security analysis of encrypted virtual machines":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "insecure until proven updated analyzing amd sev s remote attestation")
  Member "cuda leaks a detailed hack for cuda and a partial fix":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "enabling privacy preserving compute and data intensive computing using heterogeneous trusted execution environment")

Question: Please tell me which class the source paper 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)