關於暗號的,用密碼寫的
Cryptographic \Cryp`to*graph"ic\ (kr?p`t?-gr?f"?k), Cryptographical \Cryp`to*graph"ic*al\ (kr?p`t?-gr?f"?-kal), a. Relating to cryptography; written in secret characters or in cipher, or with sympathetic ink.
cryptographic adj : of or relating to cryptanalysis [syn: {cryptanalytic}, {cryptographical}, {cryptologic}, {cryptological}]