Methods and apparatus for validating a digital signature
US10715334B2 · kind B2 · utility
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15References
13Claims
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Key dates
| Filing date | Aug 2, 2017 |
| Grant date | Jul 14, 2020 |
| Priority date | — |
| Expiry date | Oct 27, 2037 |
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.