A Description of the KCipher-2 Encryption Algorithm
Shinsaku Kiyomoto, W. Shin · 2013
This document describes the KCipher-2 encryption algorithm.KCipher-2 is a stream cipher with a 128-bit key and a 128-bit initialization vector.Since the algorithm for KCipher-2 was published in 2007, security and efficiency have been rigorously evaluated through academic and industrial studies.As of the publication of this document, no security vulnerabilities have been found.KCipher-2 offers fast encryption and decryption by means of simple operations that enable efficient implementation.KCipher-2 has been used for industrial applications, especially for mobile health monitoring and diagnostic services in Japan.