A method of cyphering and/or decyphering, by an integrated circuit, of a digital input code by means of several keys, comprising: dividing the code into several data blocks of same dimensions; and applying to said blocks several turns of a cyphering or decyphering comprising submitting each block to...http://www.google.fr/patents/US7403620?utm_source=gb-gplus-shareBrevet US7403620 - Cyphering/decyphering performed by an integrated circuit
Cyphering/decyphering performed by an integrated circuit
