Direct anonymous attestation-based apparatus and method
US10833868B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Dec 28, 2017 |
| Grant date | Nov 10, 2020 |
| Priority date | — |
| Expiry date | Dec 18, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/069
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A technique includes generating a direct anonymous attestation (DAA)-based signature to prove an electronic device is a member of a group. Generating the signature includes determining a reciprocal of a prime modulus, and determining the reciprocal of the prime modulus comprises left bit shifting a Barrett multiplier by a predetermined number of bits and multiplying a result of the left bit shifting of the Barrett multiplier with the prime modulus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.