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 "fallout reading kernel writes from user space"):
  Abstract: Recently, out-of-order execution, an important performance optimization in modern high-end processors, has been revealed to pose a significant security threat, allowing information leaks across security domains. In particular, the Meltdown attack leaks information from the operating system kernel to user space, completely eroding the security of the system. To address this and similar attacks, without incurring the performance costs of software countermeasures, Intel includes hardware-based defenses in its recent Coffee Lake R processors. #R##N#In this work, we show that the recent hardware defenses are not sufficient. Specifically, we present Fallout, a new transient execution attack that leaks information from a previously unexplored microarchitectural component called the store buffer. We show how unprivileged user processes can exploit Fallout to reconstruct privileged information recently written by the kernel. We further show how Fallout can be used to bypass kernel address space randomization. Finally, we identify and explore microcode assists as a hitherto ignored cause of transient execution. #R##N#Fallout affects all processor generations we have tested. However, we notice a worrying regression, where the newer Coffee Lake R processors are more vulnerable to Fallout than older generations.

Includes members:
  Member "spectre is here to stay an analysis of side channels and speculative execution":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "bypassing memory safety mechanisms through speculative control flow hijacks")
  Member "spoiler speculative load hazards boost rowhammer and cache attacks":
    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 "speculative buffer overflows attacks and defenses":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "bypassing memory safety mechanisms through speculative control flow hijacks")
  Member "netspectre read arbitrary memory over network":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "ghostknight breaching data integrity via speculative execution")
  Member "spectre attacks exploiting speculative execution":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "towards probabilistic verification of machine unlearning")
  Member "spectre returns speculation attacks using the return stack buffer":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "ghostknight breaching data integrity via speculative execution")
  Member "ret2spec speculative execution using return stack buffers":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "ghostknight breaching data integrity via speculative execution")
  Member "a systematic evaluation of transient execution attacks and defenses":
    also connected through other hyperedges:
      - Hyperedge HE-8 (induced by source paper "ghostknight breaching data integrity via speculative execution")

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)