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: "cryptanalysis of a chaotic image encryption algorithm based on information entropy"
  Abstract: Recently, a chaotic image encryption algorithm based on information entropy (IEAIE) was proposed. This paper scrutinizes the security properties of the algorithm and evaluates the validity of the used quantifiable security metrics. When the round number is only one, the equivalent secret key of every basic operation of IEAIE can be recovered with a differential attack separately. Some common insecurity problems in the field of chaotic image encryption are found in IEAIE, e.g., the short orbits of the digital chaotic system and the invalid sensitivity mechanism built on information entropy of the plain image. Even worse, each security metric is questionable, which undermines the security credibility of IEAIE. Hence, IEAIE can only serve as a counterexample for illustrating common pitfalls in designing secure communication method for image data.

Connected through hyperedge HE-1 (induced by source paper "when an attacker meets a cipher image in 2018 a year in review"):
  with members:
    - "dynamic analysis of digital chaotic maps via state mapping networks"
    - "security evaluation for block scrambling based image encryption including jpeg distortion against jigsaw puzzle solver attacks"
    - "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"

Connected through hyperedge HE-2 (induced by source paper "cryptanalyzing a medical privacy protection scheme based on dna coding and chaos"):
  with members:
    - "dynamic analysis of digital chaotic maps via state mapping networks"
    - "cryptanalyzing an image scrambling encryption algorithm of pixel bits"
    - "cryptanalyzing an image encryption algorithm based on autoblocking and electrocardiography"
    - "cryptanalyzing a rgb image encryption algorithm based on dna encoding and chaos map"
    - "a general quantitative cryptanalysis of permutation only multimedia ciphers against plaintext attacks"

Connected through hyperedge HE-3 (induced by source paper "cryptanalysis of an image block encryption algorithm based on chaotic maps"):
  with members:
    - "dynamic analysis of digital chaotic maps via state mapping networks"
    - "cryptanalyzing an image encryption algorithm based on autoblocking and electrocardiography"
    - "cracking a hierarchical chaotic image encryption algorithm based on permutation"

Connected through hyperedge HE-4 (induced by source paper "modified integral imaging reconstruction and encryption using an improved sr reconstruction algorithm"):
  with members:
    - "cryptanalyzing an image scrambling encryption algorithm of pixel bits"

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)