Method for restoring public key based on SM2 signature
US11196556B2 · kind B2 · utility
1Cited by
1References
17Claims
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Assignee
Inventors
Key dates
| Filing date | Feb 1, 2021 |
| Grant date | Dec 7, 2021 |
| Priority date | — |
| Expiry date | Feb 1, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/64
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Disclosed herein are methods, systems, and apparatus, including computer programs encoded on computer storage media, for recovering and verifying a public key. One of the methods includes accepting information encoding parameters of an elliptic curve, a published public key, a hash value of a message, a digital signature, and an identification parameter; generating a recovered public key based on the parameters of the elliptic curve, the hash value of the message, the digital signature, and the identification parameter; comparing the published public key and the recovered public key to verify the published public key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.