@INPROCEEDINGS{GilbertRS-2008-fc,
   author        = {Gilbert, Henri and Robshaw, Matthew and Seurin, Yannick},
   title         = {{Good Variants of HB+ are Hard to Find}},
   booktitle     = {Financial Cryptography and Data Security -- FC'08},
   year          = {2008},
   editor        = {Tsudik, Gene},
   volume        = {5143},
   series        = {Lecture Notes in Computer Science},
   pages         = {156--170},
   address       = {Cozumel, Mexico},
   month         = {January},
   organization  = {IFCA},
   publisher     = {Springer},
   bibsource     = {Information Security Group (GSI), UCL, Louvain-la-Neuve, Belgium},
}