cryptography

名词 cryptography:

1. the science of analyzing and deciphering codes and ciphers and cryptograms
   同义词：cryptanalysis, cryptanalytics, cryptology
2. act of writing in code or cipher
   同义词：coding, secret writing, steganography

cryp.tog.ra.phy

n.（名词）
The process or skill of communicating in or deciphering secret writings or ciphers.
密码术：一种用秘密书写或密码进行交流的方法或技巧，译解秘密书写或密码的方法或技巧
Secret writing.
秘密书写

【引伸】
cryp.tograph.ic
cryp.tograph.ically
adv.（副词）