Method and apparatus for authenticating components

A method and apparatus authenticates a component for use in a device. The device memory stores a predetermined challenge and a predetermined response associated with the predetermined challenge. The method detects whether the component has been coupled to the device. If the component has been detect...

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Bibliographic Details
Main Authors Buskey, Ronald F, Puhl, Larry C, Rabe, Duane C
Format Patent
LanguageEnglish
Published 31.03.2009
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Summary:A method and apparatus authenticates a component for use in a device. The device memory stores a predetermined challenge and a predetermined response associated with the predetermined challenge. The method detects whether the component has been coupled to the device. If the component has been detected, the predetermined challenge is provided to the component. If a component response is received within a predetermined response time, it is compared to the predetermined response. The component is disabled if either the component response is not received within the predetermined response time or the component response is received within the predetermined response time but the component response is not equivalent to the predetermined response. The component is enabled if the component response is received within the predetermined response time and the component response is equivalent to the predetermined response.