Patent ID: 8311976
Filing Date: 2012-11-13
Classification: G06F

Abstract:
1. A management apparatus comprising: a page information storing unit configured to store a plurality of pieces of page information as a tree structure so that the plurality of pieces of page information from root page information positioned in a root to leaf page information positioned in a leaf are associated with each other; a leaf page information generating unit configured to generate the leaf page information including one or more records; a root page information generating unit configured to generate the root page information including falsification check information for checking falsification of child page information in position of a child of the root page information or the record in position of a child of the root page information, and a serial number of the child page information in the position of the child of the root page information; a node page information generating unit configured to generate the node page information including falsification check information for checking falsification of child page information in position of a child of the node page information positioned between the root page information and the leaf page information or the record in position of a child of the node page information, and a serial number of the child page information in the position of the child of the node page information, wherein the page information storing unit stores the root page information, the node page information, and the leaf page information in the tree structure; and a root link information generating unit configured to generate root link information comprised by a serial number of the root page information and falsification check information for checking falsification of the root page information, and an electronic signature for checking falsification of the root link information, wherein the page information storing unit stores the root link information, the root page information, the node page information, and the leaf page information in the tree structure.