Portable terminal, access control method, and access control program

An access control method in which a portable terminal acquires an access request from an application program, said access control method comprising:

• a request acquiring step wherein the portable terminal acquires an access right authentication request to a telephone directory management application program managing a telephone directory data stored in telephone directory data storing means of the portable terminal, from another application program which is downloaded into the portable terminal, along with application authentication information held by said application program;
• a verifying step wherein the portable terminal determines validity of the application authentication information in accordance with the access right authentication request acquired in the request acquiring step;
• and
• an output step wherein when it is determined in the verifying step that the application authentication information is valid, the portable terminal admits the access right authentication request and outputs the telephone directory data to the application program in accordance with a request for access to the telephone directory data.

A computer program product for storing instructions for execution by a processor, which when executed by the processor, causes the processor to make a portable terminal configured to acquire an access request from an application program perform processes comprising:

• a acquiring an access right authentication request to a telephone directory management application program managing the telephone directory data stored in telephone directory data storing means of the portable terminal, from another application program which is downloaded into the portable terminal, along with application authentication information held by said application program;
• determining validity of the application authentication information in accordance with the access right authentication request thus acquired;
• and
• admitting the access right authentication request when it is determined that the application authentication information is valid, and outputting the telephone directory data to the application program in accordance with the access request to the telephone directory data.