| 摘要 |
<P>PROBLEM TO BE SOLVED: To surely maintain confidentiality in non-volatile memory such as flash memory and ferroelectric memory. <P>SOLUTION: A non-volatile memory driver causes a computer to execute the steps of: an instruction acceptance step to accept a data rewrite instruction or a data deletion instruction to confidential information stored in non-volatile memory; and an invalidation execution step to perform invalidation processing which makes sure that the confidential information before data rewriting or the confidential information of a data deletion target does not remain on the non-volatile memory after data rewriting or data deletion to the confidential information, before accessing to confidential information after data rewriting becomes possible or accessing to the confidential information of the data deletion target becomes impossible. <P>COPYRIGHT: (C)2013,JPO&INPIT |
