ci·​pher·​text | \ ˈsī-fər-ˌtekst How to pronounce ciphertext (audio) \

Definition of ciphertext

: the enciphered form of a text or of its elements — compare plaintext

Examples of ciphertext in a Sentence

Recent Examples on the Web The vulnerabilities allow attackers to exfiltrate email plaintexts by embedding the previously obtained ciphertext into unviewable parts of an email and combining it with HTML coding. Dan Goodin, Ars Technica, "Decade-old Efail attack can decrypt previously obtained encrypted emails," 14 May 2018 The new email would embed portions of the ciphertext in places that often aren't displayed by Thunderbird, Mail, Outlook, and more than two-dozen other email programs. Dan Goodin, Ars Technica, "Decade-old Efail attack can decrypt previously obtained encrypted emails," 14 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ciphertext.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of ciphertext

1939, in the meaning defined above

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The first known use of ciphertext was in 1939

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Cite this Entry

“Ciphertext.” The Dictionary, Merriam-Webster Inc., Accessed 18 January 2020.

More from Merriam-Webster on ciphertext

Rhyming Dictionary: Words that rhyme with ciphertext Encyclopedia article about ciphertext

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