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 "breaking a chaotic image encryption algorithm based on modulo addition and xor operation"):
  Abstract: This paper re-evaluates the security of a chaotic image encryption algorithm called MCKBA/ HCKBA and finds that it can be broken efficiently with two known plain-images and the corresponding cipher-images. In addition, it is reported that a previously proposed breaking on MCKBA/HCKBA can be further improved by reducing the number of chosen plain-images from four to two. The two attacks are both based on the properties of solving a composite function involving the carry bit, which is composed of the modulo addition and the bitwise OR operations. Both rigorous theoretical analysis and detailed experimental results are provided.

Includes members:
  Member "breaking an image encryption algorithm based on chaos":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "chosen plaintext attack of an image encryption scheme based on modified permutation diffusion structure")
  Member "breaking a chaotic cryptographic scheme based on composition maps":
    also connected through other hyperedges:
      (none)
  Member "on the security defects of an image encryption scheme":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "an optical image encryption scheme based on depth conversion integral imaging and chaotic maps")
  Member "on the security of the yen guo s domino signal encryption algorithm dsea":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "breaking a chaotic cryptographic scheme based on composition maps")
  Member "chosen plaintext cryptanalysis of a clipped neural network based chaotic cipher":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "using echo state networks for cryptography")
  Member "on the security of the yi tan siew chaotic cipher":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "breaking a novel image encryption scheme based on improved hyperchaotic sequences")

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)