Definitions for "Symmetric Cryptography"
A method of encryption in which a single key is used to scramble and unscramble data. One weakness of symmetric cryptography is that the user has to distribute the key to the recipient without letting it fall into the wrong hands. The user can do this by encrypting the key itself, but then another key will be needed to decrypt the first one. See also asymmetric cryptography.
A branch of cryptography involving algorithms that use the same key for two different steps of the algorithm. Symmetric Cryptography is also called "secret-key crytography".
Cryptography that makes use of shared secrets as opposed to public keys.