| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a tamper-proof information processor for use in an IC card having high security, or the like. <P>SOLUTION: The information processor has; a program storage part for storing a program therein; a memory for storing data therein; an arithmetic unit for performing prescribed processing in accordance with the program; a data bus connecting the arithmetic unit and the memory; and a conversion part for converting logical addresses for use in arithmetics of the arithmetic unit to physical addresses of the memory which are made to correspond to logical addresses and are set at random at each time of arithmetic or the start of the information processor. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
