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: "stacco differentially analyzing side channel traces for detecting ssl tls vulnerabilities in secure enclaves"
  Abstract: Intel Software Guard Extension (SGX) offers software applications a shielded execution environment, dubbed enclave, to protect their confidentiality and integrity from malicious operating systems. As processors with this extended feature become commercially available, many new software applications are developed to enrich to the SGX-enabled ecosystem. One important primitive for these applications is a secure communication channel between the enclave and a remote trusted party. The SSL/TLS protocol, which is the de facto standard for protecting transport-layer network communications, has been broadly regarded a natural choice for such purposes. However, in this paper, we show that the marriage between SGX and SSL may not be smooth sailing.   Particularly, we consider a category of side-channel attacks against SSL/TLS implementations in secure enclaves, which we call the control-flow inference attacks. In these attacks, the malicious operating system kernel may perform a powerful man-in-the-kernel attack to collect execution traces of the enclave programs at the page level, the cacheline level, or the branch level, while positioning itself in the middle of the two communicating parties. At the center of our work is a differential analysis framework, dubbed Stacco, to dynamically analyze the SSL/TLS implementations and detect vulnerabilities-discernible execution traces-that can be exploited as decryption oracles. Surprisingly, in spite of the prevailing constant-time programming paradigm adopted by many cryptographic libraries, we found exploitable vulnerabilities in the latest versions of all the SSL/TLS libraries we have examined.   To validate the detected vulnerabilities, we developed a man-in-the-kernel adversary to demonstrate Bleichenbacher attacks against the latest OpenSSL library running in the SGX enclave (with the help of Graphene) and completely broke the PreMasterSecret encrypted by a 4096-bit RSA public key with only 57286 queries. We also conducted CBC padding oracle attacks against the latest GnuTLS running in Graphene-SGX and an open-source SGX implementation of mbedTLS (i.e., mbedTLS-SGX) that runs directly inside the enclave, and showed that it only needs 48388 and 25717 queries, respectively, to break one block of AES ciphertext. Empirical evaluation suggests these man-in-the-kernel attacks can be completed within 1 or 2 hours. Our results reveal the insufficient understanding of side-channel security in SGX settings, and our study will provoke discussions on the secure implementation and adoption of SSL/TLS in secure enclaves.

Connected through hyperedge HE-1 (induced by source paper "revisiting and evaluating software side channel vulnerabilities and countermeasures in cryptographic applications"):
  with members:
    - "when human cognitive modeling meets pins user independent inter keystroke timing attacks"
    - "identifying cache based side channels through secret augmented abstract interpretation"
    - "sgxpectre stealing intel secrets from sgx enclaves via speculative execution"
    - "spoiler speculative load hazards boost rowhammer and cache attacks"
    - "meltdownprime and spectreprime automatically synthesized attacks exploiting invalidation based coherence protocols"
    - "verifying and synthesizing constant resource implementations with types"
    - "spectre attacks exploiting speculative execution"
    - "robust website fingerprinting through the cache occupancy channel"

Connected through hyperedge HE-2 (induced by source paper "dr sgx automated and adjustable side channel protection for sgx using data location randomization"):
  with members:
    - "sgxpectre stealing intel secrets from sgx enclaves via speculative execution"
    - "hybcache hybrid side channel resilient caches for trusted execution environments"
    - "spectre attacks exploiting speculative execution"
    - "lazyfp leaking fpu register state using microarchitectural side channels"
    - "cachezoom how sgx amplifies the power of cache attacks"
    - "software grand exposure sgx cache attacks are practical"
    - "malware guard extension using sgx to conceal cache attacks"
    - "hardidx practical and secure index with sgx"

Connected through hyperedge HE-3 (induced by source paper "raziel private and verifiable smart contracts on blockchains"):
  with members:
    - "smotherspectre exploiting speculative execution through port contention"
    - "a systematic evaluation of transient execution attacks and defenses"
    - "proposal for a fully decentralized blockchain and proof of work algorithm for solving np complete problems"
    - "cachezoom how sgx amplifies the power of cache attacks"
    - "chainspace a sharded smart contracts platform"
    - "an empirical analysis of smart contracts platforms applications and design patterns"
    - "software grand exposure sgx cache attacks are practical"
    - "rollback and forking detection for trusted execution environments using lightweight collective memory"

Connected through hyperedge HE-4 (induced by source paper "microwalk a framework for finding side channels in binaries"):
  with members:
    - "spectre attacks exploiting speculative execution"
    - "ozone efficient execution with zero timing leakage for modern microarchitectures"
    - "cachezoom how sgx amplifies the power of cache attacks"
    - "did we learn from llc side channel attacks a cache leakage detection tool for crypto libraries"
    - "perfweb how to violate web privacy with hardware performance events"
    - "rigorous analysis of software countermeasures against cache attacks"
    - "armageddon cache attacks on mobile devices"

Connected through hyperedge HE-5 (induced by source paper "trust anchors in software defined networks"):
  with members:
    - "trusdn bootstrapping trust in cloud network infrastructure"
    - "moongen a scriptable high speed packet generator"
    - "citizen electronic identities using tpm 2 0"

Connected through hyperedge HE-6 (induced by source paper "diffuzz differential fuzzing for side channel analysis"):
  with members:
    - "fairfuzz a targeted mutation strategy for increasing greybox fuzz testing coverage"
    - "stads software testing as species discovery"
    - "badger complexity analysis with fuzzing and symbolic execution"

Connected through hyperedge HE-7 (induced by source paper "another flip in the wall of rowhammer defenses"):
  with members:
    - "cachezoom how sgx amplifies the power of cache attacks"
    - "the rowhammer problem and other issues we may face as memory becomes denser"
    - "software grand exposure sgx cache attacks are practical"
    - "malware guard extension using sgx to conceal cache attacks"
    - "hardidx practical and secure index with sgx"
    - "inferring fine grained control flow inside sgx enclaves with branch shadowing"
    - "flush flush a fast and stealthy cache attack"
    - "flush flush a fast and stealthy cache attack"

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)