The Great Decipherment
The Great Cipher, invented by the Rossignol family, was such a difficult cipher to crack because of two important factors. First the details and use of it was lost one the Rossignols died, which meant...
View ArticleThe Great Headache
The Great Cipher used by King Louis XIV was an extremely strong cipher for several reasons. First, the cipher text included 587 different numbers. This magnitude of possible decipherments was the first...
View ArticleSyllable Substitution
The Great Cipher of Louis XIV was truly a remarkable cipher, and its longevity only attests to its success. Antoine and Bonaventure Rossignol were the masterminds behind its brilliance, and with their...
View ArticleThe "Unbreakable" Code
Louis XIV’s code was one that was not deciphered for over 200 years. It used 587 number codes which represented letters and syllables, among other things. The cypher was created by Antoine and...
View ArticleBazeries’ Quest Against The Great Cipher
The Great Cipher used by Louis XIV implemented a different method of cryptography and ciphering than ever before. The monoalphabetic substitution cipher was too easy to break while the polyalphabetic...
View ArticleThe Great Cipher: 200 Years of Security
Louis XIV used the Great Cipher, invented by Antoine and Bonaventure Rossignol, throughout the seventeenth century. Following the death of the Rossignols, The Great Cipher remained an unsolved mystery...
View ArticleNot Your Average Monoalphabetic Cipher
The Great Cipher used by Louis XIV remained unbroken for 200 years. What were the factors that led to such a secure cipher? The father-son team of Antoine and Bonaventure Rossignol invented The Great...
View ArticlePhonetic Way of Mind
The Great Cipher used by Louis XIV remained unbroken for 200 years. What were the factors that led to such a secure cipher? The cipher was pioneered by a father and son duo, most of the specifics to...
View ArticleBe vague and Roman Numerals
After the execution of Mary Queen of Scots but prior to the development of more complex ciphers, like the Vigenère cipher, "anybody sending an encrypted message had to accept that an expert enemy...
View ArticleThe Great Cipher: An Unbreakable Cipher for 2 Centuries
The father-and-son team of Antoine and Bonaventure Rossignol invented the Great Cipher for the French king Louis XIV to encrypt the empire’s most secret messages, protecting details of his plans, plots...
View ArticleThe Great Cipher:Cryptography as Man in the Iron Mask:French Lore
The Great Cipher of Louis XIV proved to be one of the most challenging ciphers ever recorded. This was brought together by the father son duo of Antoine and Bonaventure Rossignol. They immersed...
View ArticleThe Great Cipher Was a Really Great Cipher
The 1600’s were a strange time in the history of cryptography. Monoalphabetic ciphers had run their course, with cryptanalysts having the resources and know-how to crack any monoalphabetic cipher...
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