| 摘要 |
PROBLEM TO BE SOLVED: To provide a means for preventing a secret key from leaking and a means for reallocating computer resources of an information server device according to the busyness of processing for cipher communication and non-cipher communication while evading a decrease in the response speed of the information server device due to cipher processing. SOLUTION: A normal OS which logically divides the computer resources of the information server device and administers the transmission and reception of information and a secure OS which administers a function of deciphering a ciphertext ciphered with an open key at a request from the normal OS are placed in operation. Further, the device is provided with a means which measures information on the CPU use rates of the secure OS and normal OS and information on the memory use rates, informs a system administrator of the computer resource use state of the information server device when a set threshold is exceeded, and allows the system administrator having been informed to reallocate the computer resources of the information server device. |
