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
Thermally efficient busway
Method of fabricating semiconductor light emitting device
Semiconductor device, method of manufacturing semiconductor device, and electronic apparatus
Crystalline form of (R)-7-chloro-N-(quinuclidin-3-yl)benzo[b]thiophene-2-carboxamide hydrochloride monohydrate
Solution based precursors
Method and apparatus for blind signal extraction
Error scanning in flash memory
  Randomly Featured Patents
Erasable jotting pad with pressure adhesive for attaching to tape measure
Method and apparatus for the optical detection of the roughness profile of a material surface
Light detecting device
Para-selective aromatization process with ex situ selectivated zeolite catalyst
Pulse width modulation amplifier
Non-linear waveguided laser channel for a gas laser
Pendant light
Jig for use with punch press
Wall mounted multiple-unit dispenser with rotary discharge assistants
Nucleic acids encoding transferrin receptors