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 "improving the efficiency of the ldpc code based mceliece cryptosystem through irregular codes"):
  Abstract: We consider the framework of the McEliece cryptosystem based on LDPC codes, which is a promising post-quantum alternative to classical public key cryptosystems. The use of LDPC codes in this context allows to achieve good security levels with very compact keys, which is an important advantage over the classical McEliece cryptosystem based on Goppa codes. However, only regular LDPC codes have been considered up to now, while some further improvement can be achieved by using irregular LDPC codes, which are known to achieve better error correction performance than regular LDPC codes. This is shown in this paper, for the first time at our knowledge. The possible use of irregular transformation matrices is also investigated, which further increases the efficiency of the system, especially in regard to the public key size.

Includes members:
  Member "security and complexity of the mceliece cryptosystem based on quasi cyclic low density parity check codes":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "analysis of the error correction capability of ldpc and mdpc codes under parallel bit flipping decoding and application to cryptography")
  Member "optimization of the parity check matrix density in qc ldpc code based mceliece cryptosystems":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "protograph based decoding of ldpc codes with hamming weight amplifiers")
  Member "coding with scrambling concatenation and harq for the awgn wire tap channel a security gap analysis":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "a survey of physical layer security techniques for 5g wireless networks and challenges ahead")
  Member "interleaved product ldpc codes":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "inter frame coding for broadcast communication")
  Member "progressive differences convolutional low density parity check codes":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "design and analysis of time invariant sc ldpc convolutional codes with small constraint length")
  Member "scaling efficient code based cryptosystems for embedded platforms":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "soft mceliece mdpc code based mceliece cryptosystems with very compact keys through real valued intentional errors")
  Member "on a family of circulant matrices for quasi cyclic low density generator matrix codes":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "soft mceliece mdpc code based mceliece cryptosystems with very compact keys through real valued intentional errors")
  Member "construction of near optimum burst erasure correcting low density parity check codes":
    also connected through other hyperedges:
      - Hyperedge HE-8 (induced by source paper "optimization of the parity check matrix density in qc ldpc code based mceliece cryptosystems")

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.IT(Information Theory)