US 2009/0158052 A1 · IMAGE PROCESSING APPARATUS FOR CHECKING UNAUTHORIZED ACCESS TO INFORMATION AND METHOD OF PERFORMING THE SAME

Abstract

Information is prevented from being retrieved by an unauthorized person when an information processing apparatus is stolen or lost. There is provided an information processing apparatus including: a storage; dividing logic/utility that divides data stored on the storage into a predetermined first number of pieces of partial data; transmitting logic/utility that transmits one or more of the first number of pieces of divided partial data to one or more different information processing apparatuses, and deletes the one or more of the first number of pieces of partial data from the storage; retrieving logic/utility that retrieves the one or more pieces of partial data from the one or more different information processing apparatuses, and stores the retrieved pieces of partial data onto the storage; and restoring logic/utility that restores the data from the minimum number of pieces of partial data.

Claims19

Dependent claims

An information processing apparatus communicating with one or more different information processing apparatuses, comprising:

a storage;
a processor;
dividing logic that divides data stored on the storage into a first number of pieces of partial data in accordance with a secret sharing scheme, the secret sharing scheme requiring a minimum number of pieces of partial data to restore the data, the first number being equal to or larger than the minimum number;
transmitting logic that transmits one or more pieces of partial date out of the first number to at least one of the different information processing apparatuses, and deletes the one or more pieces of partial data thus transmitted from the storage;
data retrieval logic that retrieves the one or more pieces of partial data from the different information processing apparatuses, and stores the pieces of partial data thus retrieved onto the storage;
and
restoring logic that restores the data from the minimum number of pieces of partial data, under the condition that the number of pieces of partial data retrieved and stored on the storage by the data retrieval section reaches the minimum number.

4 more elements

Dependencies are inferred from the claim text.

Image processing apparatus for checking unauthorized access to information and method of performing the same

Life of this patent

Image processing apparatus for checking unauthorized access to information and method of performing the same

Life of this patent

Abstract

Claims19