Secure mechanism for finite provisioning of an integrated circuit
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United States of America Patent
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May 14, 2019
Grant Date -
Nov 16, 2017
app pub date -
May 11, 2016
filing date -
May 11, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
This application discloses an electronic system including active circuitry configured to be selectively enabled for authorized number of times. The electronic system also includes security circuitry to detect an enablement event associated with the electronic system. The enablement event can correspond to reception of a reset signal associated with the electronic system, a lapse of a predetermined time period, or the like. In response to the detection of the enablement event, the security circuitry can determine a number of times the security circuitry has previously enabled the active circuitry. The security circuitry can generate the enablement signals capable of enabling the active circuitry when the determined number of times the security circuitry has previously enabled the active circuitry is fewer than the authorized number of times.
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