@conference {8.752733, title = {Efficient Software Implementation of AES on 32-Bit Platforms}, booktitle = {CHES {\textquoteright}02: Revised Papers from the 4th International Workshop on Cryptographic Hardware and Embedded Systems}, year = {2003}, pages = {159{\textendash}171}, publisher = {Springer-Verlag}, organization = {Springer-Verlag}, address = {London, UK}, abstract = {Rijndael is the winner algorithm of the AES contest; therefore it should become the most used symmetric-key cryptographic algorithm. One important application of this new standard is cryptography on smart cards. In this paper we present an optimisation of the Rijndael algorithm to speed up execution on 32-bits processors with memory constraints, such as those used in smart cards. First a theoretical analysis of the Rijndael algorithm and of the proposed optimisation is discussed, and then simulation results of the optimised algorithm on different processors are presented and compared with other reference implementations, as known from the technical literature.}, isbn = {3-540-00409-2}, author = {Bertoni, Guido Marco and Breveglieri, Luca and Fragneto, Pasqualina and Macchetti, Marco and Marchesin, Stefano} } @Patent {10.pat20030068036PATENT, title = {Method and circuit for data encryption/decryption}, number = {US 09/974,705}, year = {2003}, month = {April}, type = {Grant}, chapter = {US7801301 B2}, abstract = {Data are converted between an unencrypted and an encrypted format according to the Rijndael algorithm, including a plurality of rounds. Each round is comprised of fixed set of transformations applied to a two-dimensional array, designated state, of rows and columns of bit words. At least a part of said transformations are applied on a transposed version of the state, wherein rows and columns are transposed for the columns and rows, respectively.}, issn = {US7801301B2}, author = {Macchetti, Marco and Marchesin, Stefano and Bondi, Umberto and Breveglieri, Luca and Bertoni, Guido Marco and Fragneto, Pasqualina} } @conference {3.CaPoMaMaBeBreFra2001, title = {Efficient C implementation of the ECC and AES cryptographic systems}, booktitle = {Technology Leadership Day - organized by the MicroSwiss Network}, year = {2001}, month = {October 10}, address = {Fribourg}, author = {Cassoli, Federico and Polloni, Flavio and Marchesin, Stefano and Macchetti, Marco and Bertoni, Guido Marco and Breveglieri, Luca and Fragneto, Pasqualina} }