Certificateless multi-proxy signature method and apparatus
US9641340B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2015 |
| Grant date | May 2, 2017 |
| Priority date | — |
| Expiry date | Dec 30, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/76
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A certificateless multi-proxy signature method and apparatus, where the method may include computing, by a proxy signature device, a public key and a private key of the proxy signature device according to a public parameter, where the public key is corresponding to the private key, acquiring a verification result of a standard signature and determining, according to the verification result, whether the standard signature is valid, computing a partial proxy signature of the proxy signature device according to the private key if the verification result is used to represent that the standard signature is valid, and sending the partial proxy signature to a proxy signature device administrator, so that after the proxy signature device administrator obtains a multi-proxy signature through computation according to the partial proxy signature, a multi-proxy signature verification device verifies the multi-proxy signature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.