In cryptography, the abbreviation CSP may refer to Critical Security Parameter. A Critical Security Parameter is information that is either user or system defined and is used to operate a cryptography module in processing encryption functions. The German Lorenz cipher machine, used in World War II for encryption of very high-level general staff messages Cryptography (or cryptology; derived from Greek κρυπτός kryptós hidden, and the verb γράφω gráfo write) is the study of message secrecy. ... System (from the Latin (systēma), and this from the Greek (sustēma)) is an assemblage of entity/objects, real or abstract, comprising a whole with each and every component/element interacting or related to at least one other component/element. ... // In cryptography, encryption is the process of obscuring information to make it unreadable without special knowledge. ...