@TechReport{ dashti:optimistic:2009, author = {M. Torabi Dashti}, copyright = {ETH}, institution = {ETH Zurich}, language = {USenglish}, month = {August}, number = 635, title = {Optimistic fair exchange using trusted devices}, url = {ftp://ftp.inf.ethz.ch/pub/publications/tech-reports/6xx/635.pdf} , year = 2009, user = {torabidm} }