Triple

Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).

Phrase: S-boxes | Statement: [Data Encryption Standard, designFeature, S-boxes]

Target entity: S-boxes
Context triple: [Data Encryption Standard, designFeature, S-boxes]

• A. S-box chosen
  An S-box (substitution box) is a fundamental nonlinear component in many block ciphers that maps input bits to output bits to provide confusion and resist cryptanalysis.
• B. Substitution–permutation network
  A substitution–permutation network is a symmetric-key cryptographic design that secures data by repeatedly applying nonlinear substitutions and bitwise permutations to achieve confusion and diffusion.
• C. Feistel network
  A Feistel network is a symmetric structure for building block ciphers that splits data into halves and repeatedly applies round functions to achieve secure encryption and decryption.
• D. Serpent cipher
  Serpent cipher is a symmetric-key block cipher and former AES finalist known for its strong security margin and conservative design based on a substitution–permutation network structure.
• E. Rijndael
  Rijndael is a symmetric block cipher designed by Joan Daemen and Vincent Rijmen that was selected by NIST as the basis for the Advanced Encryption Standard (AES).
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.