cryp·tog·ra·phy 
/krɪpˈtɑ:grəfi/ noun
/krɪpˈtɑ:grəfi/ noun [noncount] : the process of writing or reading secret messages or codes
▪ Companies often use cryptography to protect private information.
▪ Companies often use cryptography to protect private information.
— cryp·tog·ra·pher /krɪpˈtɑ:grəfɚ/ noun, plural cryp·tog·ra·phers [count]
▪ He was hired as a cryptographer to break the enemy's secret code.
/krɪpˈtɑ:grəfɚ/ noun, plural cryp·tog·ra·phers [count] ▪ He was hired as a cryptographer to break the enemy's secret code.
