Catégorie : Cryptography

Cryptography (or cryptology; from Greek κρυπτός kryptós, “hidden, secret”; and γράφειν graphein, “writing”, or -λογία -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 block adversaries; various aspects in information security such as data confidentiality, data integrity, authentication, and non-repudiation are central to modern cryptography. Modern cryptography exists at the intersection of the disciplines of mathematics, computer science, and electrical engineering. Applications of cryptography include ATM cards, computer passwords, and electronic commerce.

Cryptix is a cryptography software for Mac OSX.


Cryptography And most of all the Vigenère cipher. Information from wikipedia about the Vigenère cipher The Vigenère cipher is named for Blaise de Vigenère. Although Giovan Battista Bellaso had invented the cipher earlier, Vigenère developed a stronger autokey cipher. A reproduction of the Confederacy’s cipher disk used in the U.S. Civil War on display in […]