| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an information processing apparatus which detects a bypass and alteration of internal data, subtracts its operation load, and shortens operation time. <P>SOLUTION: The information processing apparatus has: an information processing part which executes information processing in order on the basis of description of a predetermined program; and a verification memory part in which a value of a variable for verification is stored, regards a bit string with fixed bit length combining a plurality of basic bit strings with two bit length or more at least including 0 and 1 as X(i), uses a conversion bit string for converting the bit string X(i) into a bit string X(j) by performing an exclusive OR operation with the bit string X(i) to store the bit string X(i) in the verification memory part before execution of the information processing, overwrites the bit string X(i) stored in the verification memory part by performing the exclusive OR operation with the conversion bit string after execution of the information processing, and determines whether the information processing for inspection is executed on the basis of the value of the variable read from the verification memory part. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
