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One-key cryptosystem | cryptology | Britannica

SUBSCRIBESUBSCRIBESUBSCRIBE TO PREMIUMHomeHistory & SocietyScience & TechBiographiesAnimals & NatureGeography & TravelArts & CultureProConMoneyGames & QuizzesVideosOn This DayOne Good FactDictionaryNew ArticlesHistory & SocietyLifestyles & Social IssuesPhilosophy & ReligionPolitics, Law & GovernmentWorld HistoryScience & TechHealth & MedicineScienceTechnologyBiographiesBrowse BiographiesAnimals & NatureBirds, Reptiles & Other VertebratesEnvironmentFossils & Geologic TimeInsects & Other InvertebratesMammalsPlantsGeography & TravelGeography & TravelArts & CultureEntertainment & Pop CultureLiteratureSports & RecreationVisual ArtsImage GalleriesPodcastsSummariesTop QuestionsLists and StoriesBritannica KidsAsk the ChatbotGames & QuizzesHistory & SocietyScience & TechBiographiesAnimals & NatureGeography & TravelArts & CultureProConMoneyVideosone-key cryptosystemReferencespublic-key cryptographySingle-key cryptography is called symmetric for obvious reasons. A cryptosystem satisfying conditions 1–4 above is called asymmetric for equally obvious reasons. There are symmetric cryptosystems in which the encryption and decryption keys are not the same—for example, matrix transforms of the text in which one key is a nonsingular…Single-key cryptography is called symmetric for obvious reasons. A cryptosystem satisfying conditions 1–4 above is called asymmetric for equally obvious reasons. There are symmetric cryptosystems in which the encryption and decryption keys are not the same—for example, matrix transforms of the text in which one key is a nonsingular…data encryptionConventional symmetric encryption requires the same key for both encryption and decryption. A common symmetric encryption system is the Advanced Encryption Standard (AES), an extremely complex algorithm approved as a standard by the U.S. National Institute of Standards and Technology. Asymmetric encryption, or public-key cryptography, requires…Conventional symmetric encryption requires the same key for both encryption and decryption. A common symmetric encryption system is the Advanced Encryption Standard (AES), an extremely complex algorithm approved as a standard by the U.S. National Institute of Standards and Technology. Asymmetric encryption, or public-key cryptography, requires…

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