Financial Cryptography and Data Security : FC 2010 Workshops, WLC, RLCPS, and WECSR, Tenerife, Canary Islands, Spain, January 25-28, 2010, Revised Selected Papers - Radu Sion, Reza Curtmola, Sven Dietrich, Aggelos Kiayias, Josep M. Miret, Kazue Sako, Francesc Sebé ((Lecture Notes in Computer Science))