Decoding and Commentary

noun

• The activity of making clear or converting from code into plain text.
  • usage: "a secret key or password is required for decryption"
  • synonyms: decryption, decipherment

verb

• Convert code into ordinary language.
  • synonyms: decode, decrypt, decipher

noun

• A written explanation or criticism or illustration that is added to a book or other textual material.
  • usage: "he wrote an extended comment on the proposal"
  • synonyms: comment

• (v.i.) A series of comments or annotations; especially, a book of explanations or expositions on the whole or a part of the Scriptures or of some other work.
• (v.i.) A brief account of transactions or events written hastily, as if for a memorandum; -- usually in the plural; as, Caesar's Commentaries on the Gallic War.