ALL meanings of cryptography
cryp·tog·ra·phy
C c - noun cryptography the science or study of analysing and deciphering codes, ciphers, etc; cryptanalysis 3
- noun cryptography the art of writing or deciphering messages in code 3
- noun cryptography the system used in a code or cipher 3
- noun Definition of cryptography in Technology (cryptography) The practise and study of encryption and decryption - encoding data so that it can only be decoded by specific individuals. A system for encrypting and decrypting data is a cryptosystem. These usually involve an algorithm for combining the original data ("plaintext") with one or more "keys" - numbers or strings of characters known only to the sender and/or recipient. The resulting output is known as "ciphertext". The security of a cryptosystem usually depends on the secrecy of (some of) the keys rather than with the supposed secrecy of the algorithm. A strong cryptosystem has a large range of possible keys so that it is not possible to just try all possible keys (a "brute force" approach). A strong cryptosystem will produce ciphertext which appears random to all standard statistical tests. A strong cryptosystem will resist all known previous methods for breaking codes ("cryptanalysis"). See also cryptology, public-key encryption, RSA. 1
- noun cryptography the science or study of the techniques of secret writing, especially code and cipher systems, methods, and the like. Compare cryptanalysis (def 2). 1
- noun cryptography the procedures, processes, methods, etc., of making and using secret writing, as codes or ciphers. 1
- noun cryptography anything written in a secret code, cipher, or the like. 1
- noun cryptography The art of writing or solving codes. 1
- noun cryptography The discipline concerned with communication security (eg, confidentiality of messages, integrity of messages, sender authentication, non-repudiation of messages, and many other related issues), regardless of the used medium such as pencil and paper or computers. 0