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en.wikipedia.org/wiki/Code_(cryptography)

In cryptology, a code is a method used to encrypt a message that operates at the level of meaning; that is, words or phrases are converted into something else.

www.exploratorium.edu/ronh/secret/secret.html

In more serious uses, codes and ciphers are used by our military and ... and deciphering and decoding (on the receiving end) is called cryptography from the  ...

www.braingle.com/brainteasers/codes/index.php

Cryptography is the discipline of using codes and ciphers to encrypt a message and make it unreadable unless the recipient knows the secret to decrypt it.

www.wired.com/2012/12/codes

Dec 21, 2012 ... The history of encryption is a tale of broken secrets. But there are the few elusive codes that no one has ever managed to crack.

www.khanacademy.org/computing/computer-science/cryptography/ciphers/a/ciphers-vs-codes

Read and learn for free about the following article: Ciphers vs. codes. ... Next tutorial. Cryptography challenge 101 · Computing·Computer ... For example, we could make up a code where the word apple is written as 67. Generally codes are ...

www.cia.gov/kids-page/games/break-the-code

Mar 6, 2007 ... Codes have been used throughout history whenever people wanted to keep messages private. In American history, George Washington sent ...

www.cia.gov/news-information/featured-story-archive/2007-featured-story-archive/cracking-the-code.html

Aug 31, 2007 ... How do you keep a secret? One way is esczfrs ncjaezrclasj.* If you understood that, you already may know a little about cryptography. For more ...

link.springer.com/journal/10623

There is a great deal of activity in design theory, coding theory and cryptography and recently there has been considerable research done which brings together ...

www.ask.com/youtube?q=Cryptography+Codes&v=-yFZGF8FHSg
Aug 6, 2015 ... There are lots of different ways to encrypt a message, from early, simple ciphers to the famous Enigma machine. But it's tough to make a code ...