cryptography

(redirected from chaff and winnow)
Also found in: Dictionary, Thesaurus, Encyclopedia.

cryptography

(krip-tog′ră-fē) [ crypt- + -graphy]
The science and techniques of concealing or disguising information through encoding and decoding. In the health professions cryptography is used to ensure the confidentiality of medical records.
Medical Dictionary, © 2009 Farlex and Partners