Poly Cipher vs Cistercian numerals Usage & Stats
"Cryptography is the science of writing messages that no one except the intended receiver can read. Cryptanalysis is the science of reading them anyway." (Missler, Cosmic Codes pg.5)
Vigenere's polyalphabetic substitution cipher, attributed to him around 1553, was considered unbreakable for centuries. It's based on work devised by Giovan Battista & Leon Battista Alberti. (Alberti is the understated father of modern Cryptology.) And while this type of cipher is easily cracked by the NSA or FBI, your average message snooper will be confounded. Test it out with your friends!
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Cistercian numerals, were developed by the Cistercian monastic order in the thirteenth century. They made it possible to write numbers between 0 and 9999 using a drawing made up of a vertical bar and a few lines.
Use this app to create/decode Cistercian numerals. Learn how they work and test your knowledge with quizzes.
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Poly Cipher VS. 
Cistercian numeralsDecember 15, 2024