Xenon (Cipher)

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. In cryptography, Xenon is a block cipher designed in the year 2000 by Chang-Hyi Lee for the Korean firm SoftForum. The algorithm uses a key size of 128, 192, or 256 bits. It operates on blocks of 128 bits using a 16-round Feistel network structure with key whitening. Designed for speed, Xenon's round function doesn't use any S-boxes. The only operations it uses are XOR, addition, multiplication, and bit shifts. Cryptography (or cryptology; from Greek ¿¿¿¿¿¿¿, kryptos, "hidden, secret"; and ¿¿¿¿¿, gráph¿, "I write", or -¿¿¿¿¿, -logia, respectively) is the practice and study of hiding information. Modern cryptography intersects the disciplines of mathematics, computer science, and engineering.