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.

plural of cryptography

cryptography in which the key used in decryption is different from that used for encryption.

A form of cryptography which allows users to communicate securely without previously agreeing on a shared secret key (abbreviation PKC)

The subfield of cryptography in which all information used to encode a message is assumed to be publicly available.

(cryptography) A branch of public-key cryptography in which elliptic curves are used to generate key pairs.