Communication device, digital signature verification method and digital signature generation method
US7668335B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2006 |
| Grant date | Feb 23, 2010 |
| Priority date | — |
| Expiry date | Dec 3, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/2129
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
It is an object of the present invention to provide a communication device, a digital signature verification method, and a digital signature generation method, in which the memory usage efficiency is improved without confidential information required for the verification or generation of a signature being easily leaked to the outside.The Java application judges whether signature verification is required for the received signature target data. When judging that signature verification is required, the Java application outputs the received signature target data to the PKI of the platform. The PKI verifies the signature that has been added to the data output by the Java application and performs signature generation, and then notifies the Java application.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.