Resources Contact Us Home
Mobile computer and method of packet encryption and authentication in mobile computing based on security policy of visited network

Image Number 6 for United States Patent #6170057.

A mobile computer and a packet encryption and authentication method which are capable of controlling an activation of a packet encryption and authentication device belonging to the mobile computer according to the security policy at the visited network of the mobile computer. The mobile computer is provided with a packet encryption and authentication unit having an ON/OFF switchable function for applying an encryption and authentication processing on input/output packets of the mobile computer. Then, one of the packet encryption and authentication unit and an external packet processing device is selectively controlled to carry out the encryption and authentication processing on the input/output packets, where the external packet processing device being provided in a visited network at which the mobile computer is located and having a function for relaying packets transferred between a computer located in the visited network and a computer located in another network by applying the encryption and authentication processing.

  Recently Added Patents
Multi-level integrated circuit, device and method for modeling multi-level integrated circuits
Photoconductor cartridge
Analog to digital converter with increased sub-range resolution
Semiconductor device having a plurality of elements on one semiconductor substrate and method of manufacturing the same
Method for drug screening and characterization by calcium flux
Method for encoding signal, and method for decoding signal
Diameter signaling for mobile IPv4
  Randomly Featured Patents
Profiled rail system
On-step synthesis of methyl t-butyl ether from t-butanol using platinum/palladium modified .beta.-zeolite catalysts
Mobile communication method and radio base station
Automatic procedure for locating actuator addresses on a bus system
Sheet material separating device having a pivotable separating member
Submersible pump
Using SNMP as an RPC mechanism for exporting the data structures of a remote library
Ink ribbon cartridge
Method for drilling a well with emulsion drilling fluids
CVD apparatus with high throughput and cleaning method therefor