Cryptography Definition

krĭp-tŏgrə-fē
noun
Any of various mathematical techniques for encrypting and decrypting data in order to keep it private when transmitted or stored electronically.
American Heritage
The art of writing or deciphering messages in code.
Webster's New World
The system used in a code or cipher.
Webster's New World
Secret writing.
American Heritage

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.

Wiktionary
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Other Word Forms of Cryptography

Noun

Singular:
cryptography
Plural:
cryptographies

Origin of Cryptography

  • crypto- +‎ -graphy

    From Wiktionary

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cryptography