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ciphertext

Data that has been encrypted for security purposes. See plaintext.



plaintext

(1) Text that contains no formatting. See text email.

(2) Text that has not been encrypted. Also called "cleartext," plaintext is readable by any text editor such as Notepad and word processors that import ASCII text (almost all do). Contrast with "ciphertext," which is text that has been encrypted. See cryptography.




Plaintext Becomes Ciphertext
In this secret key example, the XOR operator is used to turn plaintext into ciphertext and then back to plaintext again. In practice, XOR is not used quite as simply as this. It is used in combination with different techniques and other ciphers to provide the complete encryption algorithm.






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