Cryptographic Hardware and Embedded Systems -- CHES 2003 5th International Workshop, Cologne, Germany, September 8-10, 2003, Proceedings - Walter, Colin D.; Walter, Colin D.; Koc, Cetin K.; Koc, Cetin K.; Paar, Christof; Paar, Christof (Springer Berlin Heidelberg : Imprint: Springer, 2003)