Communications of the ACM, Vol 52, N°9, September 2009
Type:
Journal
Date:
2009-09-01
Department:
Digital Security
Eurecom Ref:
2953
Copyright:
© ACM, 2009. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in Communications of the ACM, Vol 52, N°9, September 2009 http://dx.doi.org/10.1145/1562164.1562189