\bib{1996/maurer} \yr 1996 \isbn 3--540--61186--X \mr 97g:94002 \editor Ueli M. Maurer \book Advances in cryptology---EUROCRYPT '96: Proceedings of the Fifteenth International Conference on the Theory and Application of Cryptographic Techniques held in Saragossa, May 12--16, 1996 \series Lecture Notes in Computer Science \seriesvol 1070 \publ Springer-Verlag \publaddr Berlin \endref