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Ciphertext
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{{Short description|Encrypted information}} {{About|encrypted information|an overview of cryptographic technology in general|Cryptography}} [[File:Zimmermann Telegram.jpeg|thumb|right|250px|The [[Zimmermann Telegram]] (as it was sent from Washington to Mexico) encrypted as ciphertext.]] [[File:Hollow Nickel Message.jpg|thumb|KGB ciphertext found in a [[Hollow Nickel Case|hollow nickel]] in Brooklyn in 1953]] In [[cryptography]], '''ciphertext''' or '''cyphertext''' is the result of [[encryption]] performed on [[plaintext]] using an algorithm, called a [[cipher]].<ref>{{cite book |author=Berti, Hansche, Hare |title=Official (ISC)Β² Guide to the [[CISSP]] Exam |publisher=Auerbach Publications |year=2003 |pages=[https://archive.org/details/officialiscguide0000hans/page/379 379] |isbn=0-8493-1707-X }}</ref> Ciphertext is also known as encrypted or encoded information because it contains a form of the original plaintext that is unreadable by a human or computer without the proper cipher to decrypt it. This process prevents the loss of sensitive information via hacking. [[Decryption]], the inverse of encryption, is the process of turning ciphertext into readable plaintext. Ciphertext is not to be confused with [[codetext]] because the latter is a result of a code, not a cipher.
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