US 12,034,873 B2
Privacy protected autonomous attestation
Bhushan Girishkumar Parikh, Chandler, AZ (US); Hari K. Tadepalli, Gilbet, AZ (US); Stephen T. Palermo, Chandler, AZ (US); Thomas Joseph O'Dwyer, Cashel (IE); Abhilasha Bhargav-Spantzel, Santa Clara, CA (US); and Ned M. Smith, Beaverton, OR (US)
Assigned to Intel Corporation, Santa Clara, CA (US)
Appl. No. 17/435,500
Filed by Intel Corporation, Santa Clara, CA (US)
PCT Filed Mar. 27, 2020, PCT No. PCT/US2020/025211
§ 371(c)(1), (2) Date Sep. 1, 2021,
PCT Pub. No. WO2020/205514, PCT Pub. Date Oct. 8, 2020.
Claims priority of provisional application 62/827,397, filed on Apr. 1, 2019.
Prior Publication US 2022/0141041 A1, May 5, 2022
Int. Cl. H04L 29/06 (2006.01); H04L 9/30 (2006.01); H04L 9/32 (2006.01)
CPC H04L 9/3268 (2013.01) [H04L 9/3066 (2013.01); H04L 9/3218 (2013.01)] 24 Claims
OG exemplary drawing
 
1. An apparatus to operate as a certificate authority (CA), the apparatus comprising:
processing circuitry; and
a memory device including instructions embodied thereon, wherein the instructions, which when executed by the processing circuitry, configure the processing circuitry to perform operations to:
receive, from each respective device of a plurality of requesting devices, a request to join a group, the request including identification information for the group and attestation evidence for the respective device;
create a group certificate based on the attestation evidence received from each respective device, wherein the attestation evidence is generated by the respective device but does not uniquely identify the respective device;
verify whether the group includes at least a threshold number of members; and
responsive to receiving the request, provide the group certificate for the group to the plurality of requesting devices, wherein the apparatus refrains from providing the group certificate if the group does not include at least the threshold number of members.