Methods and apparatus for validating a digital signature
US9768965B2 · kind B2 · utility
7Cited by
13References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 2009 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | Apr 20, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2145
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Various embodiments include one or more of systems, methods, software, and data structures for validating a digital signature, wherein common information in a certification chain is maintained in one entry of a Document Secure Store (DSS). The DSS separates the Long Term Validation (LTV) information from the digital signature, allowing amendment of and addition to the LTV information in the DSS after a digital signature is applied to a document.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.