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 an image scrambling encryption algorithm of pixel bits"):
  Abstract: Position scrambling (permutation) is widely used in multimedia encryption schemes and some international encryption standards, such as the Data Encryption Standard and the Advanced Encryption Standard. In this article, the authors re-evaluate the security of a typical image-scrambling encryption algorithm (ISEA). Using the internal correlation remaining in the cipher image, they disclose important visual information of the corresponding plain image in a ciphertext-only attack scenario. Furthermore, they found that the real scrambling domain--the position-scrambling scope of ISEA's scrambled elements--can be used to support an efficient known or chosen-plaintext attack on it. Detailed experimental results have verified these points and demonstrate that some advanced multimedia processing techniques can facilitate the cryptanalysis of multimedia encryption algorithms.

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 "breaking a novel image encryption scheme based on improved hyperchaotic sequences":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "differential cryptanalysis of image cipher using block based scrambling and image filtering")
  Member "a general quantitative cryptanalysis of permutation only multimedia ciphers against plaintext attacks":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "cryptanalyzing a medical privacy protection scheme based on dna coding and chaos")

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)