Resources Contact Us Home
Method for issuing IC card storing encryption key information

Image Number 5 for United States Patent #8099771.

It is possible to issue an IC card storing unique encryption key information in such a manner that re-issuing is enabled and sufficient security can be assured. An IC card provider X delivers an IC card having a group code G(A) to a company A and an IC card having a group code G(B) to a company B. When a company staff .alpha. inputs a unique personal code P(.alpha.) and performs initialization, in the IC card, calculation is performed according to a predetermined algorithm using the P(.alpha.) and G(A). Data uniquely determined by the calculation is stored as encryption key information K(.alpha.) in the IC card. Even if the company staff .alpha. loses the IC card, it is possible to obtain the IC card having the same encryption key information K(.alpha.) as before by performing initialization again by using the IC card delivered by the IC card provider X.

  Recently Added Patents
Electrophotographic photoreceptor, image-forming apparatus, and electrophotographic cartridge
Antimicrobial polysiloxane materials containing metal species
Compact bus bar assembly, switching device and power distribution system
Techniques for data assignment from an external distributed file system to a database management system
Method and apparatus for transmitting and receiving extension information of component carrier in wireless communication system
Image processing apparatus, image forming system, and computer-readable storage medium
Question and answer system wherein experts are associated with models and have response rates that are associated with time intervals
  Randomly Featured Patents
Method of and apparatus for transmitting digital broadcasting signal in advanced-VSB (A-VSB) system in which transport packet without adaptation field is provided at fixed location in data fie
Tiller housing
Electrical control device for electric motor driven, electrically turnable wheelchairs for invalids and other patients
Handle grip portion of a power tool
Active carbon materials, process for the preparation thereof and the use thereof
Mineral mining machines
Gallic acid as an oxygen scavenger
Dual function prosthetic bone implant and method for preparing the same
Rod reducer instruments and methods
Sine-squared pulse shaping circuit