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: "a general quantitative cryptanalysis of permutation only multimedia ciphers against plaintext attacks"
  Abstract: In recent years secret permutations have been widely used for protecting different types of multimedia data, including speech files, digital images and videos. Based on a general model of permutation-only multimedia ciphers, this paper performs a quantitative cryptanalysis on the performance of these kind of ciphers against plaintext attacks. When the plaintext is of size MxN and with L different levels of values, the following quantitative cryptanalytic findings have been concluded under the assumption of a uniform distribution of each element in the plaintext: (1) all permutation-only multimedia ciphers are practically insecure against known/chosen-plaintext attacks in the sense that only O(log"L(MN)) known/chosen plaintexts are sufficient to recover not less than (in an average sense) half elements of the plaintext; (2) the computational complexity of the known/chosen-plaintext attack is only O(n.(MN)^2), where n is the number of known/chosen plaintexts used. When the plaintext has a non-uniform distribution, the number of required plaintexts and the computational complexity is also discussed. Experiments are given to demonstrate the real performance of the known-plaintext attack for a typical permutation-only image cipher.

Connected through hyperedge HE-1 (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"
    - "cryptanalysis of a chaotic image encryption algorithm based on information entropy"
    - "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"

Connected through hyperedge HE-2 (induced by source paper "universal chosen ciphertext attack for a family of image encryption schemes"):
  with members:
    - "differential cryptanalysis of image cipher using block based scrambling and image filtering"
    - "on the cryptanalysis of fridrich s chaotic image encryption scheme"
    - "local shannon entropy measure with statistical tests for image randomness"

Connected through hyperedge HE-3 (induced by source paper "differential cryptanalysis of image cipher using block based scrambling and image filtering"):
  with members:
    - "breaking a novel image encryption scheme based on improved hyperchaotic sequences"

Connected through hyperedge HE-4 (induced by source paper "on the cryptanalysis of fridrich s chaotic image encryption scheme"):
  with members:
    - "cracking a hierarchical chaotic image encryption algorithm based on permutation"
    - "deciphering an image cipher based on mixed transformed logistic maps"
    - "breaking a novel image encryption scheme based on improved hyperchaotic sequences"
    - "breaking a chaotic image encryption algorithm based on modulo addition and xor operation"

Connected through hyperedge HE-5 (induced by source paper "cryptanalyzing an image scrambling encryption algorithm of pixel bits"):
  with members:
    - "on the cryptanalysis of fridrich s chaotic image encryption scheme"
    - "cracking a hierarchical chaotic image encryption algorithm based on permutation"
    - "breaking a novel image encryption scheme based on improved hyperchaotic sequences"

Connected through hyperedge HE-6 (induced by source paper "design and arm embedded implementation of a chaotic map based multicast scheme for multiuser speech wireless communication"):
  with members:
    - "on the cryptanalysis of fridrich s chaotic image encryption scheme"
    - "cracking a hierarchical chaotic image encryption algorithm based on permutation"
    - "breaking a novel image encryption scheme based on improved hyperchaotic sequences"
    - "cryptanalyzing an encryption scheme based on blind source separation"

Connected through hyperedge HE-7 (induced by source paper "cryptanalysis of an image scrambling encryption algorithm"):
  with members:
    - "cracking a hierarchical chaotic image encryption algorithm based on permutation"

Connected through hyperedge HE-8 (induced by source paper "cracking a hierarchical chaotic image encryption algorithm based on permutation"):
  with members:
    - "cryptanalyzing image encryption using chaotic logistic map"

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)