It is an object to provide a certification system designed for security patrol, for example, that certifies a patrolled time and a patrolled site in security patrol rounds. It is another object to certify the time when an image was taken and the site where the image was taken, for example, by attaching...http://www.google.fr/patents/US20070118739?utm_source=gb-gplus-shareBrevet US20070118739 - Certificate issuance server and certification system for certifying operating environment
Certificate issuance server and certification system for certifying ...
