@misc{Riv06a,
  author = 	 { Ronald L. Rivest },
  title = 	 { Perspectives on Financial Cryptography (revisited) },
  howpublished = { Invited keynote talk given 2/27/06 at Financial Cryptography 2006. (An update on
                   talk given 2/27/97 at Financial Cryptography 1997.) },
  date =         { 2006-02-27 },                  
  OPTyear = 	 { 2006 },
  OPTmonth = 	 { February 27, },
  urla =         { <a href="#Riv97a">FC'97 talk</a> },                  
}