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: "another flip in the wall of rowhammer defenses"
  Abstract: The Rowhammer bug allows unauthorized modification of bits in DRAM cells from unprivileged software, enabling powerful privilege-escalation attacks. Sophisticated Rowhammer countermeasures have been presented, aiming at mitigating the Rowhammer bug or its exploitation. However, the state of the art provides insufficient insight on the completeness of these defenses. In this paper, we present novel Rowhammer attack and exploitation primitives, showing that even a combination of all defenses is ineffective. Our new attack technique, one-location hammering, breaks previous assumptions on requirements for triggering the Rowhammer bug, i.e., we do not hammer multiple DRAM rows but only keep one DRAM row constantly open. Our new exploitation technique, opcode flipping, bypasses recent isolation mechanisms by flipping bits in a predictable and targeted way in userspace binaries. We replace conspicuous and memory-exhausting spraying and grooming techniques with a novel reliable technique called memory waylaying. Memory waylaying exploits system-level optimizations and a side channel to coax the operating system into placing target pages at attacker-chosen physical locations. Finally, we abuse Intel SGX to hide the attack entirely from the user and the operating system, making any inspection or detection of the attack infeasible. Our Rowhammer enclave can be used for coordinated denial-of-service attacks in the cloud and for privilege escalation on personal computers. We demonstrate that our attacks evade all previously proposed countermeasures for commodity systems.

Connected through hyperedge HE-1 (induced by source paper "are we susceptible to rowhammer an end to end methodology for cloud providers"):
  with members:
    - "rowhammer a retrospective"
    - "spoiler speculative load hazards boost rowhammer and cache attacks"
    - "nethammer inducing rowhammer faults through network requests"
    - "pointing in the right direction securing memory accesses in a faulty world"
    - "the rowhammer problem and other issues we may face as memory becomes denser"
    - "can t touch this practical and generic software only defenses against rowhammer attacks"
    - "rowhammer js a remote software induced fault attack in javascript"
    - "drama exploiting dram addressing for cross cpu attacks"

Connected through hyperedge HE-2 (induced by source paper "ghostknight breaching data integrity via speculative execution"):
  with members:
    - "telehammer a stealthy cross boundary rowhammer technique"
    - "sgxpectre stealing intel secrets from sgx enclaves via speculative execution"
    - "netspectre read arbitrary memory over network"
    - "spectre attacks exploiting speculative execution"
    - "nethammer inducing rowhammer faults through network requests"
    - "spectre returns speculation attacks using the return stack buffer"
    - "ret2spec speculative execution using return stack buffers"
    - "a systematic evaluation of transient execution attacks and defenses"

Connected through hyperedge HE-3 (induced by source paper "telehammer cross privilege boundary rowhammer through implicit accesses"):
  with members:
    - "cattmew defeating software only physical kernel isolation"
    - "nethammer inducing rowhammer faults through network requests"
    - "rowhammer js a remote software induced fault attack in javascript"
    - "drama exploiting dram addressing for cross cpu attacks"

Connected through hyperedge HE-4 (induced by source paper "survey of attacks and defenses on edge deployed neural networks"):
  with members:
    - "tensorflow js machine learning for the web and beyond"
    - "bit flip attack crushing neural network with progressive bit search"
    - "xonn xnor based oblivious deep neural network inference"
    - "deeplaser practical fault attack on deep neural networks"
    - "knockoff nets stealing functionality of black box models"
    - "cache telepathy leveraging shared resource attacks to learn dnn architectures"
    - "mlcapsule guarded offline deployment of machine learning as a service"
    - "the secret sharer measuring unintended neural network memorization extracting secrets"

Connected through hyperedge HE-5 (induced by source paper "terminal brain damage exposing the graceless degradation in deep neural networks under hardware fault attacks"):
  with members:
    - "page cache attacks"
    - "scalable methods for 8 bit training of neural networks"
    - "fine pruning defending against backdooring attacks on deep neural networks"
    - "sever a robust meta algorithm for stochastic optimization"
    - "breaking transferability of adversarial samples with randomness"
    - "turning your weakness into a strength watermarking deep neural networks by backdooring"
    - "training deep neural networks with 8 bit floating point numbers"
    - "nethammer inducing rowhammer faults through network requests"

Connected through hyperedge HE-6 (induced by source paper "bit flip attack crushing neural network with progressive bit search"):
  with members:
    - "defensive quantization when efficiency meets robustness"
    - "deeplaser practical fault attack on deep neural networks"
    - "mobilenetv2 inverted residuals and linear bottlenecks"
    - "parametric noise injection trainable randomness to improve deep neural network robustness against adversarial attack"
    - "deflecting adversarial attacks with pixel deflection"
    - "hardware trojan attacks on neural networks"
    - "obfuscated gradients give a false sense of security circumventing defenses to adversarial examples"
    - "defense against adversarial attacks using high level representation guided denoiser"

Connected through hyperedge HE-7 (induced by source paper "store to leak forwarding leaking data on meltdown resistant cpus"):
  with members:
    - "practical enclave malware with intel sgx"
    - "smotherspectre exploiting speculative execution through port contention"
    - "page cache attacks"
    - "spoiler speculative load hazards boost rowhammer and cache attacks"
    - "speculative buffer overflows attacks and defenses"
    - "netspectre read arbitrary memory over network"
    - "meltdownprime and spectreprime automatically synthesized attacks exploiting invalidation based coherence protocols"
    - "spectre attacks exploiting speculative execution"

Connected through hyperedge HE-8 (induced by source paper "rowhammer a retrospective"):
  with members:
    - "processing data where it makes sense enabling in memory computation"
    - "rowhammer and beyond"
    - "improving 3d nand flash memory lifetime by tolerating early retention loss and process variation"
    - "d range using commodity dram devices to generate true random numbers with low latency and high throughput"
    - "nethammer inducing rowhammer faults through network requests"
    - "pointing in the right direction securing memory accesses in a faulty world"
    - "what your dram power models are not telling you lessons from a detailed experimental study"
    - "theory and practice of finding eviction sets"

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)