Apparatus and method for testing normality of shared data
First Claim
Patent Images
1. A test apparatus that is connected to an electronic device through a network, the apparatus comprising:
- circuitry configured to function as;
a generator configured to generate third data computed from first data shared with the electronic device and predetermined second data;
a transmitter configured to transmit the third data to the electronic device;
a receiver configured to receive, from the electronic device, verification data for verifying correctness of the second data restored by the electronic device;
a verification unit configured to verify correctness of the second data restored by the electronic device using the verification data,a determination unit configured to determine whether the first data of the electronic device is normal based on a result of verification performed by the verification unit; and
an error output unit, whereinthe determination unit determines whether the first data is normal for each of a plurality of electronic devices connected to the network, andthe error output unit outputs a first error signal when the number of electronic devices having the first data determined to be abnormal is equal to or smaller than a first threshold, and outputs a second error signal when the number of electronic devices having the first data determined to be abnormal exceeds the first threshold, the first error signal indicating that the electronic devices have abnormality, the second error signal indicating that there is an abnormality other than in the electronic devices, the abnormality including an abnormality in the test apparatus or the network.
1 Assignment
0 Petitions
Accused Products
Abstract
According to an embodiment, a test apparatus that is connected to an electronic device through a network includes a generator, a transmitter, and a determination unit. The generator generates third data computed from first data shared with the electronic device and predetermined second data. The transmitter transmits the third data to the electronic device. The determination unit determines whether the first data of the electronic device is normal depending on whether the second data is restored correctly from the third data using the first data of the electronic device.
16 Citations
9 Claims
-
1. A test apparatus that is connected to an electronic device through a network, the apparatus comprising:
-
circuitry configured to function as; a generator configured to generate third data computed from first data shared with the electronic device and predetermined second data; a transmitter configured to transmit the third data to the electronic device; a receiver configured to receive, from the electronic device, verification data for verifying correctness of the second data restored by the electronic device; a verification unit configured to verify correctness of the second data restored by the electronic device using the verification data, a determination unit configured to determine whether the first data of the electronic device is normal based on a result of verification performed by the verification unit; and an error output unit, wherein the determination unit determines whether the first data is normal for each of a plurality of electronic devices connected to the network, and the error output unit outputs a first error signal when the number of electronic devices having the first data determined to be abnormal is equal to or smaller than a first threshold, and outputs a second error signal when the number of electronic devices having the first data determined to be abnormal exceeds the first threshold, the first error signal indicating that the electronic devices have abnormality, the second error signal indicating that there is an abnormality other than in the electronic devices, the abnormality including an abnormality in the test apparatus or the network. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A communication system comprising:
-
a test apparatus; and an electronic device connected to the test apparatus through a network, wherein the test apparatus comprises; circuitry configured to function as; a generator configured to generate third data computed from first data shared with the electronic device and predetermined second data; a transmitter configured to transmit the third data to the electronic device; a receiver configured to receive, from the electronic device, verification data for verifying correctness of the second data restored by the electronic device; a verification unit configured to verify correctness of the second data restored by the electronic device using the verification data; a determination unit configured to determine whether the first data of the electronic device is normal based on a result of verification performed by the verification unit; and an error output unit, wherein the determination unit determines whether the first data is normal for each of a plurality of electronic devices connected to the network, and the error output unit outputs a first error signal when the number of electronic devices having the first data determined to be abnormal is equal to or smaller than a first threshold, and outputs a second error signal when the number of electronic devices having the first data determined to be abnormal exceeds the first threshold, the first error signal indicating that the electronic devices have abnormality, the second error signal indicating that something other than the electronic devices, such as the test apparatus or the network, has abnormality.
-
-
9. A test method performed by a test apparatus that is connected to an electronic device through a network, the method comprising:
-
generating third data computed from first data shared with the electronic device and predetermined second data; transmitting the third data to the electronic device; receiving, from the electronic device, verification data for verifying correctness of the second data restored by the electronic device; verifying correctness of the second data restored by the electronic device using the verification data; determining whether the first data of the electronic device is normal based on a result of the verification; and outputting an error signal, wherein the determining determines whether the first data is normal for each of a plurality of electronic devices connected to the network, and the outputting outputs a first error signal when the number of electronic devices having the first data determined to be abnormal is equal to or smaller than a first threshold, and the outputting outputs a second error signal when the number of electronic devices having the first data determined to be abnormal exceeds the first threshold, the first error signal indicating that the electronic devices have abnormality, the second error signal indicating that something other than the electronic devices, such as the test apparatus or the network, has abnormality.
-
Specification