Cryptanalytics and Cryptanalysis

noun

• The science of analyzing and deciphering codes and ciphers and cryptograms.
  • synonyms: cryptanalysis, cryptography, cryptology

noun

• The science of analyzing and deciphering codes and ciphers and cryptograms.
  • synonyms: cryptanalytics, cryptography, cryptology

(DoD) The steps and operations performed in converting encrypted messages into plain text without initial knowledge of the key employed in the encryption.