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
Termite tubing preventative for non-wood materials
Data processing apparatus and data processing method for reducing an uneven color made up of two or more ink colors
Laser receiver for detecting a relative position
Activated carbon cryogels and related methods
Liquid crystal display and manufacturing method thereof
Reconfigurable barrel shifter and rotator
Weak acid recovery system for ethanol separation processes
  Randomly Featured Patents
Micronutrient metal-containing phosphate glasses
Thermally insulative mounting with solid state device
System and method for distributed back-off in a database-oriented environment
Configurable multi-protocol vehicle communication circuit and method
Electroencephalography monitoring device having a self-adaptive analog-to-digital converter
Multi-function interface module
Flag management in processors enabled for speculative execution of micro-operation traces
Low pass filter circuit device and method having selectable cutoff frequency
Liquid level detector