cryptographical vs cryptographic

cryptographical and cryptographic both are adjectives.

Word	Noun	Adjective	Verb	Adverb
cryptographical	No	Yes	No	No
cryptographic	No	Yes	No	No

As adjectives, cryptographical and cryptographic are synonyms defined as:

Other synonyms of cryptographical include cryptanalytic, cryptologic, cryptological.

cryptographical (adjective)	cryptographic (adjective)
of or relating to cryptanalysis	of or relating to cryptanalysis