| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent secret leakage by preventing the operation of a target apparatus from being authenticated only by identification information even when the identification information is leaked by interception or the like. <P>SOLUTION: An authentication terminal apparatus 30 comprises: a communication means 31 for communicating with portable terminal equipment 10; a storage means 33 for storing identification information ID concerned with specific portable terminal equipment; a collation means 32 for collating identification information ID received by the communication means 31 with the identification information ID stored in the storage means 33; a code generation means 36 for generating a random identification code; a code transmission means 34 for transmitting a composite code GC obtained by compounding the received identification information ID and the identification code generated by the code generation means 36 when collation succeeds; and an authentication control means 37 for authenticating the operation of the target apparatus 20 when the code transmitted from the portable terminal equipment 10 coincides with the composite code GC or inhibiting the authentication of the operation of the target apparatus 20 when the transmitted code does not coincide with the composite code GC. <P>COPYRIGHT: (C)2008,JPO&INPIT |
