Information processing apparatus, control method thereof, and computer program
US8204227B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 24, 2006 |
| Grant date | Jun 19, 2012 |
| Priority date | — |
| Expiry date | Aug 26, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/60
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus includes a first storage unit configured to store first data to be backup, an encryption unit configured to generate second data by encrypting the first data by using a cryptographic key, a second storage unit configured to store the second data together with a first identifier of the first data, a third storage unit configured to store the cryptographic key used in the encryption of the first data, in association with the first identifier of the first data, an instruction acceptance unit configured to accept a deletion instruction for the first data stored in the first storage unit, and a deletion unit configured to delete, from the third storage unit in accordance with the deletion instruction, the cryptographic key associated with the first identifier of the first data for which the deletion instruction is accepted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.