Method and apparatus for enabling secure connectivity using standards-based Virtual Private Network (VPN) IPSEC algorithms in a mobile and intermittently connected computing environment enhance the current standards based algorithms by allowing migratory devices to automatically (re)establish security...http://www.google.com.tw/patents/US20030182431?utm_source=gb-gplus-share專利 US20030182431 - Method and apparatus for providing secure connectivity in mobile and other intermittent computing environments
