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In early medieval England between the years 800–1100, substitution ciphers were frequently used by scribes as a playful and clever way to encipher notes, solutions to riddles, and colophons. The ciphers tend to be fairly straightforward, but sometimes they deviate from an ordinary pattern, adding to their complexity, and possibly also to ...
Cryptography, or cryptology (from Ancient Greek: κρυπτός, romanized: kryptós "hidden, secret"; and γράφειν graphein, "to write", or -λογία-logia, "study", respectively [1]), is the practice and study of techniques for secure communication in the presence of adversarial behavior. [2]
1989 – Quantum cryptography experimentally demonstrated in a proof-of-the-principle experiment by Charles Bennett et al. 1991 – Phil Zimmermann releases the public key encryption program PGP along with its source code, which quickly appears on the Internet. 1994 – Bruce Schneier's Applied Cryptography is published.
Pages in category "Medieval cryptographers" The following 8 pages are in this category, out of 8 total. This list may not reflect recent changes. A.
Systems of cryptography had been developed in Italy in late medieval times and by the 17th century many rulers employed cipher secretaries for diplomatic and other sensitive communication. [ 2 ] : 113 The Thirty Years War gave rise to a range of scholarly publications summarising existing knowledge of the field, and there was a growing interest ...
C. Capstone (cryptography) Card catalog (cryptology) Michel de Castelnau; CAVNET; Central Bureau; Operation CHAOS; Choctaw code talkers; Cipher Bureau (Poland)
Leon Battista Alberti (Italian: [leˈom batˈtista alˈbɛrti]; 14 February 1404 – 25 April 1472) was an Italian Renaissance humanist author, artist, architect, poet, priest, linguist, philosopher, and cryptographer; he epitomised the nature of those identified now as polymaths.
Year of origin Ciphertext Decipherment status 179-180 Papyrus Oxyrhynchus 90: Unsolved 1400s (15th century) Voynich Manuscript: Unsolved 1500s (16th century) (?)