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 "ghostknight breaching data integrity via speculative execution"):
  Abstract: Existing speculative execution attacks are limited to breaching confidentiality of data beyond privilege boundary, the so-called spectre-type attacks. All of them utilize the changes in microarchitectural buffers made by the speculative execution to leak data. We show that the speculative execution can be abused to break data integrity. We observe that the speculative execution not only leaves traces in the microarchitectural buffers but also induces side effects within DRAM, that is, the speculative execution can trigger an access to an illegitimate address in DRAM. If the access to DRAM is frequent enough, then architectural changes (i.e., permanent bit flips in DRAM) will occur, which we term GhostKnight. With the power of of GhostKnight, an attacker is essentially able to cross different privilege boundaries and write exploitable bits to other privilege domains. In our future work, we will develop a GhostKnight-based exploit to cross a trusted execution environment, defeat a 1024-bit RSA exponentiation implementation and obtain a controllable signature.

Includes members:
  Member "telehammer a stealthy cross boundary rowhammer technique":
    also connected through other hyperedges:
      (none)
  Member "sgxpectre stealing intel secrets from sgx enclaves via speculative execution":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "distributed systems and trusted execution environments trade offs and challenges")
  Member "netspectre read arbitrary memory over network":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "store to leak forwarding leaking data on meltdown resistant cpus")
  Member "spectre attacks exploiting speculative execution":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "towards probabilistic verification of machine unlearning")
  Member "nethammer inducing rowhammer faults through network requests":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "are we susceptible to rowhammer an end to end methodology for cloud providers")
  Member "spectre returns speculation attacks using the return stack buffer":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "bypassing memory safety mechanisms through speculative control flow hijacks")
  Member "ret2spec speculative execution using return stack buffers":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "bypassing memory safety mechanisms through speculative control flow hijacks")
  Member "a systematic evaluation of transient execution attacks and defenses":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "bypassing memory safety mechanisms through speculative control flow hijacks")

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)