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: "information flow safety in multiparty sessions"
  Abstract: We consider a calculus for multiparty sessions enriched with security levels for messages. We propose a monitored semantics for this calculus, which blocks the execution of processes as soon as they attempt to leak information. We illustrate the use of this semantics with various examples, and show that the induced safety property is compositional and that it is strictly included between a typability property and a security property proposed for an extended calculus in previous work.#R##N##R##N#† Dedicated to the Memory of Kohei Honda

Connected through hyperedge HE-1 (induced by source paper "domain aware session types extended version"):
  with members:
    - "multiparty compatibility in communicating automata characterisation and synthesis of global session types"
    - "soft session types"

Connected through hyperedge HE-2 (induced by source paper "secure multiparty sessions with topics"):
  with members:
    - "precise subtyping for synchronous multiparty sessions"
    - "combining behavioural types with security analysis"

Connected through hyperedge HE-3 (induced by source paper "combining behavioural types with security analysis"):
  with members:
    - "dynamic role authorization in multiparty conversations"
    - "self adaptation and secure information flow in multiparty structured communications a unified perspective"
    - "on the realizability of contracts in dishonest systems"
    - "honesty by typing"
    - "linearly refined session types"

Connected through hyperedge HE-4 (induced by source paper "lightening global types"):
  with members:
    - "dynamic role authorization in multiparty conversations"
    - "a typeful characterization of multiparty structured conversations based on binary sessions"
    - "merging multiparty protocols in multiparty choreographies"
    - "on global types and multi party session"

Connected through hyperedge HE-5 (induced by source paper "dynamic role authorization in multiparty conversations"):
  with members:
    - "a typed model for dynamic authorizations"
    - "combining behavioural types with security analysis"
    - "hide and new in the pi calculus"

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)