'Cryptography' definitions:

Definition of 'cryptography'

From: WordNet
noun
The science of analyzing and deciphering codes and ciphers and cryptograms [syn: cryptanalysis, cryptanalytics, cryptography, cryptology]
noun
Act of writing in code or cipher [syn: cryptography, coding, secret writing, steganography]

Definition of 'Cryptography'

From: GCIDE
  • Cryptography \Cryp*tog"ra*phy\ (-f?), n. [Cf. F. cryptographie.]
  • 1. The act or art of writing in code or secret characters; also, secret characters, codes or ciphers, or messages written in a secret code. [1913 Webster +PJC]
  • 2. The science which studies methods for encoding messages so that they can be read only by a person who knows the secret information required for decoding, called the key; it includes cryptanalysis, the science of decoding encrypted messages without possessing the proper key, and has several other branches; see for example steganography. [PJC]