cryptography
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Cryptography
Cryptography (or cryptology; from Greek , "hidden, secret"; and , graphein, "writing", or , -logia, "study", respectively) is the practice and study of techniques for secure communication in the presence of third parties (called adversaries). More generally, it is about constructing and analyzing protocols that overcome the influence of adversaries and which are related to various aspects in information security such as data confidentialitydata integrity, and authentication. Modern cryptography intersects the disciplines of mathematicscomputer science, and electrical engineering. Applications of cryptography include ATM cardscomputer passwords, and electronic commerce.

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Kryptographie
Kryptographie (auch: Kryptografie; von griechisch: κρυπτός, kryptós, „verborgen“, und γράφειν, gráphein, „schreiben“) ist die Wissenschaft der Verschlüsselung von Informationen.

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Cryptographie
La cryptographie est une des disciplines de la cryptologie s'attachant à protéger des messages (assurant confidentialitéauthenticité et intégrité) en s'aidant souvent de secrets ou clés.

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Kryptografi
Kryptografi, (grek. cruptos = "gömd", graphein = "skrift"), konsten att göra text obegriplig för utomstående och obehöriga. Kryptografin är en del av kryptologin.

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Kryptologia
Kryptologia (z gr. κρυπτός – kryptos – "ukryty" i λόγος – logos – "słowo") – nauka o przekazywaniu informacji w sposób zabezpieczony przed niepowołanym dostępem. Kryptologię dzieli się na: kryptografię (z gr. κρυπτός oraz γράφω gráfo "pisać"), czyli naukę o układaniu systemów kryptograficznych i kryptoanalizę (gr. kryptós oraz analýein – rozluźnić), czyli naukę o ich łamaniu.

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