CryptographyThe art of writing and solving codes
Definitions:
The practice and study of techniques for secure communication in the presence of third parties.
CipherA secret or disguised way of writing
Definitions:
A secret or disguised way of writing; a code.
QuantumRelating to the very small, particularly quantum physics
Definitions:
A discrete quantity of energy proportional in magnitude to the frequency of the radiation it represents.
EncryptionThe process of converting data to an unrecognizable or encrypted form
Definitions:
The method by which information is converted into secret code that hides the information's true meaning.