Sony announced late last week that they have invented a new encryption mechanism known as “CLEFIA,” a block cipher algorithm designed to help content producers deliver “advanced copy protection” with their products. The name comes from a play on the French word clef, which means “key.” We can’t help but snicker, given that it has been key-sniffing that has been undoing DRM as of late.
CLEFIA is aimed at portable electronics and home entertainment products, and can be applied to music, images, or even video. The big claim from Sony is that CLEFIA has “sufficient immunity against known cryptanalytic attacks,” yet it has relatively low hardware requirements. The company plans to formally present the CLEFIA algorithm at the Fast Software Encryption 2007 conference in Luxembourg.