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DATA PROCESSING APPARATUS AND PROGRAM

  • US 20080232596A1
  • Filed: 03/20/2008
  • Published: 09/25/2008
  • Est. Priority Date: 03/23/2007
  • Status: Abandoned Application
First Claim
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1. A data processing apparatus capable of updating and writing a plurality of distributed information items generated based on to-be-held secret information with respect to a storage device in which access is not limited, comprising:

  • a distributed information generation device configured to generate a plurality of distributed information items updated this time according to secret information to be held this time based on a threshold value secret distribution method,a recording position selecting device configured to select recording positions of the distributed information items updated this time to leave behind distributed information items of a number less than a threshold value among the plurality of distributed information items updated last time or leave behind none of the above distributed information items with respect to a plurality of distributed information items updated and stored in the storage device, anda distributed information writing device configured to write the distributed information items updated this time to the storage device based on the selected recording positions.

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