Controlled-content recoverable blinded certificates
US6871276B1 · kind B1 · utility
37Cited by
6References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 5, 2000 |
| Grant date | Mar 22, 2005 |
| Priority date | — |
| Expiry date | Apr 5, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/60
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a cryptographic system, a certificate is used to provide information regarding a client device. The certificate is blindly signed by a certifying authority to preserve the anonymity of the client device. However, information is encoded into the signature so that a content server can readily verify security attributes of the client device and make decisions regarding the delivery of electronic content to the client device based on those security attributes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.