Resources Contact Us Home
Synchronization of cryptographic keys between two modules of a distributed system

Image Number 6 for United States Patent #6064989.

The apparatus comprises: a first module including a universal key; a second module including a unique identifier and a unique key wherein the unique key is derived from the unique identifier and the universal key and incorporated into the second module during manufacture of the second module. The second module is in communication with the first module. The apparatus further comprises a controller for performing the following subsequent to manufacture of the first module and the second module: initiating a communication session between the first module and the second module; transmitting the unique identifier from the second module to the first module; and deriving the unique key in the first module using the unique identifier and the universal key. A method for synchronization of cryptographic keys between modules of a distributed system and a method of manufacturing a postage evidencing system are also provided.

  Recently Added Patents
Chemically resistant membranes, coatings and films and methods for their preparation
Method and apparatus for monitoring for a radio link failure
Matching engine for comparing data feeds with user profile criteria
Multi display device and method of controlling the same
Display device and method of repairing display device
Shape based similarity of continuous wave doppler images
Dental fillers including a phosphorus containing surface treatment, and compositions and methods thereof
  Randomly Featured Patents
Wire termination mechanisms and methods of use
Tool holder
Method of optimizing the operation of claus units
Automated de-icing system for low power lighting apparatus
Automatic developing device, roller washing method, photosensitive material processing device, and preparation method for processing liquid
Tray controlling method using firmware for detecting different inclined position
Drive system for modular link conveyor belts
Below grade cask transfer facility
Memory module testing apparatus and method of testing memory modules