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 "understanding rowhammer attacks through the lens of a unified reference framework"):
  Abstract: Rowhammer is a hardware-based bug that allows the attacker to modify the data in the memory without accessing it, just repeatedly and frequently accessing (or hammering) physically adjacent memory rows. So that it can break the memory isolation between processes, which is seen as the cornerstone of modern system security, exposing the sensitive data to unauthorized and imperceptible corruption. A number of previous works have leveraged the rowhammer bug to achieve various critical attacks. #R##N#In this work, we propose a unified reference framework for analyzing the rowhammer attacks, indicating three necessary factors in a practical rowhammer attack: the attack origin, the intended implication and the methodology. Each factor includes multiple primitives, the attacker can select primitives from three factors to constitute an effective attack. In particular, the methodology further summarizes all existing attack techniques, that are used to achieve its three primitives: Location Preparation (LP), Rapid Hammering (RH), and Exploit Verification (EV). Based on the reference framework, we analyze all previous rowhammer attacks and corresponding countermeasures. Our analysis shows that how primitives in different factors are combined and used in previous attacks, and thus points out new possibility of rowhammer attacks, enabling proactive prevention before it causes harm. Under the framework, we propose a novel expressive rowhammer attack that is capable of accumulating injected memory changes and achieving rich attack semantics. We conclude by outlining future research directions.

Includes members:
  Member "still hammerable and exploitable on the effectiveness of software only physical kernel isolation":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "telehammer a stealthy cross boundary rowhammer technique")
  Member "nethammer inducing rowhammer faults through network requests":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "are we susceptible to rowhammer an end to end methodology for cloud providers")
  Member "intrinsic rowhammer pufs leveraging the rowhammer effect for improved security":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "rowhammer a retrospective")
  Member "another flip in the wall of rowhammer defenses":
    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 "the rowhammer problem and other issues we may face as memory becomes denser":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "are we susceptible to rowhammer an end to end methodology for cloud providers")
  Member "rowhammer reliability analysis and security implications":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "rowhammer a retrospective")
  Member "flush flush a fast and stealthy cache attack":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "copycat controlled instruction level attacks on enclaves for maximal key extraction")
  Member "flush flush a fast and stealthy cache attack":
    also connected through other hyperedges:
      - Hyperedge HE-8 (induced by source paper "copycat controlled instruction level attacks on enclaves for maximal key extraction")

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)