Pronunciation: /ki/ Explain

In encryption, a key is something that allows you to decrypt an encrypted message. A key can be a book, a set of characters or numbers, a template, or anything that allows you to decrypt a message.


  1. Simon Singh. The Code Book: The Science of Secrecy from Ancient Egypt to Quantum Cryptography. reprint edition. Anchor. August 29, 2000. Buy the book
  2. John Hershey. Cryptography Demystified. McGraw-Hill Professional. August 23, 2002. Buy the book
  3. Chey Cobb. Cryptography for Dummies. pp 79-92. For Dummies. January 30, 2004. Buy the book

Cite this article as:

McAdams, David E. Key. 8/7/2018. All Math Words Encyclopedia. Life is a Story Problem LLC.

Revision History

8/7/2018: Removed broken links, updated license, implemented new markup, implemented new Geogebra protocol. (McAdams, David E.)
3/4/2010: Added "References". (McAdams, David E.)
2/19/2008: Corrected spelling error. (McAdams, David E.)
7/12/2007: Initial version. (McAdams, David E.)

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