Adding MAC Functionality to Edon80
Danilo Gligoroski, Svein J. Knapskog · 2007
Abstract. In this paper we show how the synchronous stream cipher Edon80- proposed as a candidate stream cipher in Profile 2 of the eSTREAM project, can be efficiently upgraded to synchronous stream cipher with authentication. We are achieving that by simple addition of two-bit registers into the e-transformers of Edon80 core, an additional 160-bit shift register and by putting additional communication logic between neighboring e-transformers of the Edon80 pipeline core. This upgrade does not change the produced keystream from Edon80 and we project that in total it will need not more then 1500 gates. Key words: hardware, synchronous stream cipher, MAC, Edon80 1