cryptanalysis vs cryptanalytics

cryptanalysis and cryptanalytics both are nouns.

Word	Noun	Adjective	Verb	Adverb
cryptanalysis	Yes	No	No	No
cryptanalytics	Yes	No	No	No

As nouns, cryptanalysis and cryptanalytics are synonyms defined as:

cryptanalysis and cryptanalytics: the science of analyzing and deciphering codes and ciphers and cryptograms

Other synonyms of cryptanalysis include cryptography, cryptology.

cryptanalysis (noun)	cryptanalytics (noun)
the science of analyzing and deciphering codes and ciphers and cryptograms	the science of analyzing and deciphering codes and ciphers and cryptograms