System and method for securing a power management apparatus from an attack by verifying acquired data based on statistical processing, data simulation, and watermark verification
First Claim
1. An analysis server comprising:
- one or more processors operable to;
analyze a first data acquired from a first local power management system to identify an attack on the first local power management system or abnormalities of an electronic appliance, the first local power management system composed of the electronic appliance provided with a sensor and a power management apparatus managing power supply to the electronic appliance connected to a power network, by using a second data acquired from a second local power management system with a power usage state similar to that of the first local power management system;
analyze the first data acquired from the first local power management system to identify the attack on the first local power management system or the abnormalities of the electronic appliance, by comparing a portion or all of the first data to an estimated value calculated by simulation using characteristics information or specification information of the electronic appliance; and
verify electronic watermark data embedded with time information in the first data acquired from the first local power management system to identify tampering of the first data,wherein the verification is based on comparison of the embedded electronic watermark data with a predetermined electronic watermark data, andwherein the predetermined electronic watermark data is generated based on the first data and the time information.
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Accused Products
Abstract
There is provided an analysis server including a first verifying unit that analyzes data acquired from a local power management system composed of an electronic appliance provided with a sensor and a power management apparatus managing power supply to the electronic appliance connected to a power network, by using history information of the local power management system or data acquired from another local power management system with a power usage state similar to that of the local power management system, a second verifying unit that analyzes the data acquired from the local power management system, by using an estimated value calculated by simulation using characteristics information and/or specification information of the electronic appliance, and a control unit that controls the first verifying unit and the second verifying unit.
32 Citations
10 Claims
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1. An analysis server comprising:
one or more processors operable to; analyze a first data acquired from a first local power management system to identify an attack on the first local power management system or abnormalities of an electronic appliance, the first local power management system composed of the electronic appliance provided with a sensor and a power management apparatus managing power supply to the electronic appliance connected to a power network, by using a second data acquired from a second local power management system with a power usage state similar to that of the first local power management system; analyze the first data acquired from the first local power management system to identify the attack on the first local power management system or the abnormalities of the electronic appliance, by comparing a portion or all of the first data to an estimated value calculated by simulation using characteristics information or specification information of the electronic appliance; and verify electronic watermark data embedded with time information in the first data acquired from the first local power management system to identify tampering of the first data, wherein the verification is based on comparison of the embedded electronic watermark data with a predetermined electronic watermark data, and wherein the predetermined electronic watermark data is generated based on the first data and the time information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 9, 10)
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8. A method of securing a power management apparatus, comprising:
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analyzing a first data acquired from a first local power management system to identify an attack on the first local power management system or abnormalities of an electronic appliance, the first local power management system composed of the electronic appliance provided with a sensor and the power management apparatus managing power supply to the electronic appliance connected to a power network, by using a second data acquired from a second local power management system with a power usage state similar to that of the first local power management system; comparing a portion or all of the first data to an estimated value calculated by simulation using characteristics information or specification information of the electronic appliance; and verifying electronic watermark data embedded with time information in the first data acquired from the first local power management system to identify tampering of the first data, wherein the verification is based on comparison of the embedded electronic watermark data with a predetermined electronic watermark data, and wherein the predetermined electronic watermark data is generated based on the first data and the time information.
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Specification