Method and apparatus for providing information security to prevent digital signature forgery
US7373512B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 27, 2000 |
| Grant date | May 13, 2008 |
| Priority date | — |
| Expiry date | Mar 27, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus utilizes a digital signature verification map containing a plurality of acceptable message header identifiers associated with a public key certificate identifier. In one embodiment, a method includes determining a digital signature verification error based on a received message header, such as transport header identifier associated with a public key certificate identifier, such as the subject field of the certificate. The method includes generating a signature verification map or updating a signature verification map containing a plurality of acceptable message header identifiers associated with the common public key certificate identifier in response to determining the digital signature verification error. Accordingly, a link is provided between a transport header and a digitally signed message. A digital signature verification map is continually updated to accommodate aliases to a common subject associated with the certificate. The digital signature verification map is preferably digitally signed to maintain a trusted verification map to operate as part of a secure communication system. If desired, a trusted alias map may also be used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.