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: "on the security of the yen guo s domino signal encryption algorithm dsea"
  Abstract: Recently, a new domino signal encryption algorithm (DSEA) was proposed for digital signal transmission, especially for digital images and videos. This paper analyzes the security of DSEA, and points out the following weaknesses: (1) its security against the brute-force attack was overestimated; (2) it is not sufficiently secure against ciphertext-only attacks, and only one ciphertext is enough to get some information about the plaintext and to break the value of a sub-key; (3) it is insecure against known/chosen-plaintext attacks, in the sense that the secret key can be recovered from a number of continuous bytes of only one known/chosen plaintext and the corresponding ciphertext. Experimental results are given to show the performance of the proposed attacks, and some countermeasures are discussed to improve DSEA.

Connected through hyperedge HE-1 (induced by source paper "breaking a chaotic image encryption algorithm based on modulo addition and xor operation"):
  with members:
    - "breaking an image encryption algorithm based on chaos"
    - "breaking a chaotic cryptographic scheme based on composition maps"
    - "on the security defects of an image encryption scheme"
    - "chosen plaintext cryptanalysis of a clipped neural network based chaotic cipher"
    - "on the security of the yi tan siew chaotic cipher"

Connected through hyperedge HE-2 (induced by source paper "breaking a chaotic cryptographic scheme based on composition maps"):
  with members:
    - "on the security defects of an image encryption scheme"
    - "a general quantitative cryptanalysis of permutation only multimedia ciphers against plaintext attacks"
    - "security analysis of a chaos based image encryption algorithm"
    - "on the security of the yi tan siew chaotic cipher"

Connected through hyperedge HE-3 (induced by source paper "security analysis of a binary image permutation scheme based on logistic map"):
  with members:
    - "on the security defects of an image encryption scheme"
    - "a general quantitative cryptanalysis of permutation only multimedia ciphers against plaintext attacks"

Connected through hyperedge HE-4 (induced by source paper "cryptanalyzing an encryption scheme based on blind source separation"):
  with members:
    - "a general quantitative cryptanalysis of permutation only multimedia ciphers against plaintext attacks"
    - "on the design of perceptual mpeg video encryption algorithms"
    - "security problems with improper implementations of improved fea m"

Connected through hyperedge HE-5 (induced by source paper "cryptanalysis of an image encryption scheme based on the hill cipher"):
  with members:
    - "on the security defects of an image encryption scheme"
    - "on the design of perceptual mpeg video encryption algorithms"
    - "chosen plaintext cryptanalysis of a clipped neural network based chaotic cipher"

Connected through hyperedge HE-6 (induced by source paper "a general quantitative cryptanalysis of permutation only multimedia ciphers against plaintext attacks"):
  with members:
    - "on the security defects of an image encryption scheme"

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)