human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "cryptanalysis of a classical chaos based cryptosystem with some quantum cryptography features"):
  Abstract: The application of synchronization theory to build new cryptosystems has been a hot topic during the last two decades. In this paper, we analyze a recent proposal in this field. We pinpoint the mai...

Includes members:
  Member "on the cryptanalysis of fridrich s chaotic image encryption scheme":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "an efficient image encryption scheme based on ordered quasi resonant rossby drift wave triads and mordell elliptic curves")
  Member "cracking a hierarchical chaotic image encryption algorithm based on permutation":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "when an attacker meets a cipher image in 2018 a year in review")
  Member "deciphering an image cipher based on mixed transformed logistic maps":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "on the cryptanalysis of fridrich s chaotic image encryption scheme")
  Member "breaking a novel image encryption scheme based on improved hyperchaotic sequences":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "differential cryptanalysis of image cipher using block based scrambling and image filtering")

Question: Please tell me which class the source paper 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)