Enable/disable method of additional-function unit, system for same, program for same, as well as additional-function unit
First Claim
1. A method of validating/invalidating an additional function unit in an information processing apparatus to which the additional function unit is added, the method comprising:
- a step of calculating a first one-way function value based on data included in a recording medium that stores a boot loader and an operating system, and storing the first one-way function value in the additional function unit upon manufacturing;
a step of calculating a second one-way function value based on the data included in the recording medium after the information processing apparatus is activated; and
a step of, when the first one-way function value and the second one-way function value are different, invalidating a function of the additional function unit,wherein the recording medium is provided in the information processing apparatus,the additional function unit is a unit that is added to the information processing apparatus,the information processing apparatus is a payment function mounted handy terminal, andthe additional function unit is a PIN (Personal Identification Number) input unit.
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0 Petitions
Accused Products
Abstract
The objective of the present invention is to disable functionality of an additional-function unit if an unauthorized program has been installed in an information processing device, thereby preventing an unauthorized program from acquiring, in an unauthorized manner, information from the additional-function unit. The present invention is an enable/disable method for an additional-function unit in an information processing device to which the additional-function unit has been added, which has a step for calculating a first directional function value on the basis of data included in a recording medium storing a boot loader and an operating system so as to store the first directional function value at manufacture time into the additional-function unit, a step for calculating a second directional function value on the basis of data included in the recording medium after the information processing device has been started up, and a step for disabling the functionality of the additional-function unit if the first directional function value and the second directional function value are different.
5 Citations
20 Claims
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1. A method of validating/invalidating an additional function unit in an information processing apparatus to which the additional function unit is added, the method comprising:
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a step of calculating a first one-way function value based on data included in a recording medium that stores a boot loader and an operating system, and storing the first one-way function value in the additional function unit upon manufacturing; a step of calculating a second one-way function value based on the data included in the recording medium after the information processing apparatus is activated; and a step of, when the first one-way function value and the second one-way function value are different, invalidating a function of the additional function unit, wherein the recording medium is provided in the information processing apparatus, the additional function unit is a unit that is added to the information processing apparatus, the information processing apparatus is a payment function mounted handy terminal, and the additional function unit is a PIN (Personal Identification Number) input unit. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system that validates/invalidates an additional function unit in an information processing apparatus to which the additional function unit is added, the system comprising:
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a unit configured to calculate a first one-way function value based on data included in a recording medium that stores a boot loader and an operating system, and to store the first one-way function value in the additional function unit upon manufacturing; a unit configured to calculate a second one-way function value based on the data included in the recording medium after the information processing apparatus is activated; and a unit configured to invalidate a function of the additional function unit when the first one-way function value and the second one-way function value are different, wherein the recording medium is provided in the information processing apparatus, the additional function unit is a unit that is added to the information processing apparatus, the information processing apparatus is a payment function mounted handy terminal, and the additional function unit is a PIN (Personal Identification Number) input unit. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A non-transitory recording medium storing a program that causes a computer to function as a system that validates/invalidates an additional function unit in an information processing apparatus to which the additional function unit is added, the program causing the computer to function as:
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a unit configured to calculate a first one-way function value based on data included in a recording medium that stores a boot loader and an operating system, and to store the first one-way function value in the additional function unit upon manufacturing; a unit configured to calculate a second one-way function value based on the data included in the recording medium after the information processing apparatus is activated; and a unit configured to invalidate a function of the additional function unit when the first one-way function value and the second one-way function value are different, wherein the recording medium is provided in the information processing apparatus, the additional function unit is a unit that is added to the information processing apparatus, the information processing apparatus is a payment function mounted handy terminal, and the additional function unit is a PIN (Personal Identification Number) input unit. - View Dependent Claims (14, 15, 16, 17, 18)
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19. An additional function unit that is added to an information processing apparatus, the additional function unit comprising:
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a unit configured to store upon manufacturing a first one-way function value calculated based on data included in a recording medium that stores a boot loader and an operating system; and a unit configured to invalidate a function of the additional function unit, when a second one-way function value calculated based on the data included in the recording medium after the information processing apparatus is activated, and the first one-way function value are different, wherein the recording medium is provided in the information processing apparatus, the additional function unit is a unit that is added to the information processing apparatus, the information processing apparatus is a payment function mounted handy terminal, and the additional function unit is a PIN (Personal Identification Number) input unit.
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20. A non-transitory recording medium storing a program that causes a computer to function as an apparatus that validates/invalidates an additional function unit that is added to the information processing apparatus, the program causing the computer to function as:
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a unit configured to store upon manufacturing a first one-way function value calculated based on data included in a recording medium that stores a boot loader and an operating system; and a unit configured to invalidate a function of the additional function unit when a second one-way function value calculated based on the data included in the recording medium after the information processing apparatus is activated, and the first one-way function value are different, wherein the recording medium is provided in the information processing apparatus, the additional function unit is a unit that is added to the information processing apparatus, the information processing apparatus is a payment function mounted handy terminal, and the additional function unit is a PIN (Personal Identification Number) input unit.
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Specification