Arbitrary base value for EPID calculation
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United States of America Patent
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Apr 2, 2019
Grant Date -
Jan 4, 2018
app pub date -
Jul 1, 2016
filing date -
Jul 1, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
Systems and methods for using an arbitrary base value for EPID calculations are provided herein. A system to use arbitrary base values in enhanced privacy ID (EPID) calculation, where the system includes a microcontroller; and a memory coupled to the microcontroller; wherein the microcontroller is to: obtain an arbitrary value at a member device, the member device being a member of a group of member devices, each member device in the group of member devices having a unique private EPID key assigned from a pool of private keys, where any of the pool of private keys is able to sign content that is verifiable by a single group public key, and the arbitrary value being one of a time-based value or a usage-based value; construct an EPID base using the arbitrary value; and transmit content signed with the private key using the EPID base to a verifier.
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