LONG-TERM DIGITAL OBJECTS: TRUSTWORTHY EVEN AFTER EVERY WITNESS IS DEAD
Gladney, H.M. (2003) LONG-TERM DIGITAL OBJECTS: TRUSTWORTHY EVEN AFTER EVERY WITNESS IS DEAD.
In ancient times, wax seals impressed with signet rings were affixed to documents as evidence of their authenticity. A digital counterpart is a message authentication code fixed firmly to each important document. We sketch an architecture that accomplishes this by using encapsulation of content with provenance metadata, cryptographic sealing, and webs of trust rooted in respected institutions.