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 "cryptanalyzing a medical privacy protection scheme based on dna coding and chaos"):
  Abstract: Recently, a medical privacy protection scheme (MPPS) based on DNA encoding and chaos was proposed in [IEEE Trans. Nanobioscience, vol. 16, pp. 850--858, 2017]. This paper reports some properties of MPPS and proposes a chosen-plaintext attack on it. In addition, the other claimed superiorities are questioned from the viewpoint of modern cryptography. Both theoretical analysis and experimental results are provided to support the feasibility of the attack and other security defects. The proposed cryptanalysis will promote proper application of DND encoding in protecting multimedia data including DICOM image.

Includes members:
  Member "dynamic analysis of digital chaotic maps via state mapping networks":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "when an attacker meets a cipher image in 2018 a year in review")
  Member "cryptanalysis of a chaotic image encryption algorithm based on information entropy":
    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 "cryptanalyzing an image scrambling encryption algorithm of pixel bits":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "an efficient image encryption scheme based on ordered quasi resonant rossby drift wave triads and mordell elliptic curves")
  Member "cryptanalyzing an image encryption algorithm based on autoblocking and electrocardiography":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "an authentication protocol based on chaos and zero knowledge proof")
  Member "cryptanalyzing a rgb image encryption algorithm based on dna encoding and chaos map":
    also connected through other hyperedges:
      (none)
  Member "a general quantitative cryptanalysis of permutation only multimedia ciphers against plaintext attacks":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "universal chosen ciphertext attack for a family of image encryption schemes")

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)