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: "network analysis of the state space of chaotic map in digital domain"
  Abstract: Complex dynamics of chaotic maps under an infinite-precision mathematical framework have been well known. The case in a finite-precision computer remains to be further explored. Previous work treated a digital chaotic map as a black box and gave different explanations according to the test results of the output. Using the Logistic map as a typical example, we disclose some dynamical properties of chaotic maps in fixed-point arithmetic by studying its corresponding state network, where every possible value is considered as a node and every possible mapping relation between a pair of nodes works as a directed edge. The scale-free properties of the state network are quantitatively proven. The obtained results can be extended to the scenario of floating-point arithmetic and to other chaotic maps. Understanding the real network structure of the state space of a chaotic map in the digital domain will help evaluate and improve the randomness of pseudo-random number sequences generated by chaotic maps.

Connected through hyperedge HE-1 (induced by source paper "cryptanalysis of a chaotic image encryption algorithm based on information entropy"):
  with members:
    - "cryptanalyzing an image scrambling encryption algorithm of pixel bits"
    - "on the cryptanalysis of fridrich s chaotic image encryption scheme"
    - "cryptanalyzing an image encryption algorithm based on autoblocking and electrocardiography"
    - "cracking a hierarchical chaotic image encryption algorithm based on permutation"
    - "cryptanalyzing image encryption using chaotic logistic map"
    - "dynamic analysis of chaotic maps as complex networks in the digital domain"
    - "entropy and set cardinality inequalities for partition determined functions"

Connected through hyperedge HE-2 (induced by source paper "cryptanalyzing an image encryption algorithm based on autoblocking and electrocardiography"):
  with members:
    - "cryptanalyzing an image scrambling encryption algorithm of pixel bits"
    - "on the cryptanalysis of fridrich s chaotic image encryption scheme"
    - "dynamic analysis of chaotic maps as complex networks in the digital domain"

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)