| 摘要 |
PURPOSE:To eliminate a malicious request from a general space and a request for a core space due to a mistake and to guarantee the security of a system as to the data processor for the message base of a client/server model which identifies the kind of a request by using a request code added in a message. CONSTITUTION:The assignment range of the request code set in the message is sectioned and determined in advance exclusively for the general client space 11 and core space 12. When the request code set in the message requested to be sent is a request code dedicated to the core space, a means 15 in a message communication mechanism 14 checks whether or not the transmission source is in the core space 12 and then when a space other than the core space 12 sends a message transmission request by using the request code dedicated to the core space, the message transmission is regarded as an error. |
