@mastersthesis{EURECOM+2075,
  author = {Önen, Melek and Molva, Refik},
  title = {Secure data aggregation with multiple encryption},
  year = {2006},
  note = {© EURECOM. Personal use of this material is permitted. The definitive version of this paper was published in Research report RR-06-181 and is available at :},
}