Cryptography

Definitions

Webster’s 1828 Dictionary defined cryptography as:^[1]
“The act or art of writing in secret characters; also, secret characters or cypher.”

Merriam-Webster’s Dictionary defined it as:^[2]
1 – “secret writing”
2 – “the enciphering and deciphering of messages in secret code or cipher. also : the computerized encoding and decoding of information”
3 – CRYPTANALYSIS

Dictionary.com defined it as:^[3]
1 – “the science or study of the techniques of secret writing, especially code and cipher systems, methods, and the like.”
2 – “the procedures, processes, methods, etc., of making and using secret writing, as codes or ciphers.”
3 – “anything written in a secret code, cipher, or the like.”

Lexico defined it as:^[4]
“The art of writing or solving codes.”

Etymology

“First recorded in 1635–45; crypto- + -graphy”^[3]
“borrowed from New Latin cryptographia, from crypto- CRYPTO- + -graphia -GRAPHY
NOTE: New Latin cryptographia was perhaps first used by the Limburg-born philologist Erycius Puteanus (Eric de Put, Eric van den Putte, 1574-1646) in “Cryptographia epistolica, sive de clandestina scriptione,” an addendum to his Epistolarum reliquiae centuria V (Leuven/Louvain, 1612). An apparently more widely circulated work using the word was Cryptomenytices et cryptographiae libri IX (Lüneburg, 1624) by Gustavus Selenus, pseudonym of Augustus the Younger, Duke of Brunswick-Lüneburg (1579-1666).”

1646 – Earliest known use, defined as above.^[2]

“1650s, “art of writing in secret characters,” from French cryptographie or directly from Modern Latin cryptographia, from Greek kryptos “hidden” (see crypt) + graphia (see -graphy).”^[5]

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References:

[1] – http://webstersdictionary1828.com/Dictionary/cryptography. Accessed 13 Oct. 2020.

[2] – “Cryptography.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cryptography. Accessed 13 Oct. 2020.

[3] – https://www.dictionary.com/browse/cryptography?s=t. Accessed 13 Oct. 2020.

[4] – https://www.lexico.com/definition/cryptography. Accessed 13 Oct. 2020.

[5] – https://www.etymonline.com/search?q=cryptography. Accessed 13 Oct. 2020.

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