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: "key reduction of mceliece s cryptosystem using list decoding"
  Abstract: Different variants of the code-based McEliece cryptosystem were pro- posed to reduce the size of the public key. All these variants use very structured codes, which open the door to new attacks exploiting the underlying structure. In this paper, we show that the dyadic variant can be designed to resist all known attacks. In light of a new study on list decoding algorithms for binary Goppa codes, we explain how to increase the security level for given public keysizes. Using the state-of-the-art list decoding algorithm instead of unique decoding, we exhibit a keysize gain of about 4% for the standard McEliece cryptosystem and up to 21% for the adjusted dyadic variant.

Connected through hyperedge HE-1 (induced by source paper "structural properties of twisted reed solomon codes with applications to cryptography"):
  with members:
    - "twisted reed solomon codes"
    - "fast computation of the roots of polynomials over the ring of power series"
    - "squares of random linear codes"
    - "faster algorithms for multivariate interpolation with multiplicities and simultaneous polynomial approximations"
    - "distinguisher based attacks on public key cryptosystems using reed solomon codes"
    - "on products and powers of linear codes under componentwise multiplication"

Connected through hyperedge HE-2 (induced by source paper "repairing the faure loidreau public key cryptosystem"):
  with members:
    - "polynomial time key recovery attack on the faure loidreau scheme based on gabidulin codes"
    - "some gabidulin codes cannot be list decoded efficiently at any radius"
    - "list and unique error erasure decoding of interleaved gabidulin codes with interpolation techniques"
    - "bounds on list decoding of rank metric codes"
    - "on the complexity of the rank syndrome decoding problem"

Connected through hyperedge HE-3 (induced by source paper "a public key cryptosystem from interleaved goppa codes"):
  with members:
    - "structural properties of twisted reed solomon codes with applications to cryptography"
    - "repairing the faure loidreau public key cryptosystem"
    - "decoding of interleaved reed solomon codes using improved power decoding"
    - "collaborative decoding of interleaved reed solomon codes and concatenated code designs"

Connected through hyperedge HE-4 (induced by source paper "folding alternant and goppa codes with non trivial automorphism groups"):
  with members:
    - "new algorithms for decoding in the rank metric and an attack on the lrpc cryptosystem"
    - "polynomial time attack on wild mceliece over quadratic extensions"
    - "cryptanalysis of two mceliece cryptosystems based on quasi cyclic codes"

Connected through hyperedge HE-5 (induced by source paper "security and complexity of the mceliece cryptosystem based on quasi cyclic low density parity check codes"):
  with members:
    - "on a family of circulant matrices for quasi cyclic low density generator matrix codes"
    - "cryptanalysis of two mceliece cryptosystems based on quasi cyclic codes"
    - "ldpc codes in the mceliece cryptosystem attacks and countermeasures"

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)