| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of verifying increment-certificate enable data integrity (IPDI). Ž<P>SOLUTION: Firstly, a finger print of data is generated at a client. The finger print is transmitted to an archive with data. Then, the client transmits "challenge data" for deciding data integrity to the archive as needed. The archive demonstrates data integrity using the received finger print. Finally, the client verifies data integrity based on the output from the archive returned as a response to the "challenge data". Further, the IPDI scheme allows incremental data to be added safely to a data file to which the finger print is already added and outsourced. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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