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 polynomial time attack on the bbcrs scheme"
  Abstract: The BBCRS scheme is a variant of the McEliece public-key encryption scheme where the hiding phase is performed by taking the inverse of a matrix which is of the form $\mathbf{T} +\mathbf{R}$ where $\mathbf{T}$ is a sparse matrix with average row/column weight equal to a very small quantity $m$, usually $m < 2$, and $\mathbf{R}$ is a matrix of small rank $z\geqslant 1$. The rationale of this new transformation is the reintroduction of families of codes, like generalized Reed-Solomon codes, that are famously known for representing insecure choices. We present a key-recovery attack when $z = 1$ and $m$ is chosen between $1$ and $1 + R + O( \frac{1}{\sqrt{n}} )$ where $R$ denotes the code rate. This attack has complexity $O(n^6)$ and breaks all the parameters suggested in the literature.

Connected through hyperedge HE-1 (induced by source paper "on the security of a loidreau s rank metric code based encryption scheme"):
  with members:
    - "distinguisher based attacks on public key cryptosystems using reed solomon codes"
    - "enhanced public key security for the mceliece cryptosystem"

Connected through hyperedge HE-2 (induced by source paper "an efficient structural attack on nist submission dags"):
  with members:
    - "on the security of some compact keys for mceliece scheme"
    - "quantum resistant random linear code based public key encryption scheme rlce"
    - "squares of random linear codes"
    - "cryptanalysis of mceliece cryptosystem based on algebraic geometry codes and their subcodes"
    - "folding alternant and goppa codes with non trivial automorphism groups"
    - "polynomial time attack on wild mceliece over quadratic extensions"
    - "security and complexity of the mceliece cryptosystem based on quasi cyclic low density parity check codes"
    - "distinguisher based attacks on public key cryptosystems using reed solomon codes"

Connected through hyperedge HE-3 (induced by source paper "recovering short secret keys of rlce in polynomial time"):
  with members:
    - "quantum resistant random linear code based public key encryption scheme rlce"
    - "squares of random linear codes"
    - "cryptanalysis of mceliece cryptosystem based on algebraic geometry codes and their subcodes"
    - "polynomial time attack on wild mceliece over quadratic extensions"
    - "distinguisher based attacks on public key cryptosystems using reed solomon codes"
    - "enhanced public key security for the mceliece cryptosystem"

Connected through hyperedge HE-4 (induced by source paper "a new class of convolutional codes and its use in the mceliece cryptosystem"):
  with members:
    - "layered constructions for low delay streaming codes"
    - "superregular matrices and applications to convolutional codes"
    - "a sugiyama like decoding algorithm for convolutional codes"
    - "a new class of superregular matrices and mdp convolutional codes"
    - "enhanced public key security for the mceliece cryptosystem"

Connected through hyperedge HE-5 (induced by source paper "variations of the mceliece cryptosystem"):
  with members:
    - "soft mceliece mdpc code based mceliece cryptosystems with very compact keys through real valued intentional errors"
    - "spatially coupled ldpc codes constructed from protographs"
    - "spatially coupled sparse codes on graphs theory and practice"
    - "cryptanalysis of public key cryptosystems that use subcodes of algebraic geometry codes"
    - "polynomial time attack on wild mceliece over quadratic extensions"
    - "a polynomial time attack against algebraic geometry code based public key cryptosystems"
    - "distinguisher based attacks on public key cryptosystems using reed solomon codes"
    - "error correcting pairs for a public key cryptosystem"

Connected through hyperedge HE-6 (induced by source paper "polynomial time attack on wild mceliece over quadratic extensions"):
  with members:
    - "linear independence of rank 1 matrices and the dimension of products of codes"
    - "squares of random linear codes"
    - "cryptanalysis of mceliece cryptosystem based on algebraic geometry codes and their subcodes"
    - "cryptanalysis of public key cryptosystems that use subcodes of algebraic geometry codes"
    - "folding alternant and goppa codes with non trivial automorphism groups"
    - "a polynomial time attack against algebraic geometry code based public key cryptosystems"
    - "distinguisher based attacks on public key cryptosystems using reed solomon codes"
    - "an efficient attack of a mceliece cryptosystem variant based on convolutional codes"

Connected through hyperedge HE-7 (induced by source paper "cryptanalysis of mceliece cryptosystem based on algebraic geometry codes and their subcodes"):
  with members:
    - "squares of random linear codes"
    - "cryptanalysis of public key cryptosystems that use subcodes of algebraic geometry codes"
    - "polynomial time attack on wild mceliece over quadratic extensions"
    - "a polynomial time attack against algebraic geometry code based public key cryptosystems"
    - "feng rao decoding of primary codes"
    - "distinguisher based attacks on public key cryptosystems using reed solomon codes"
    - "on products and powers of linear codes under componentwise multiplication"

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)