About: http://webisa.webdatacommons.org/77733459

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	You do not say to what level you require the encryption to be, nor how robust against varying forms of attack, but have you looked at TrueCrypt?
http://www.w3.org/ns/prov#wasQuotedFrom	sophos.com