About: http://webisa.webdatacommons.org/260186058

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Since the function f is a one-way function, even if Xn is stolen, Xn-1 cannot be calculated.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com