| 摘要 |
PURPOSE:To add a secrecy protecting function even to an existing device having no secrecy protecting function with simple improvement by granting a reading operation to a storage means in response to the decision of coincidence of a comparison means. CONSTITUTION:An input means 1100 inputs a password and a comparison means 1200 compares a registered password written at a prescribed position of the storage information with the password inputted from the means 1100. Then a storage control means 1300 grants a reading operation to a storage means 1000 in response to the decision of coincidence of the means 1200. Thus an information processor using a CPU, etc., can protect the secrecy with higher reliability just with exchange of software and with no remodeling of software. |
