Method and system for printing transaction documents using a multi-vendor secure printer under control of a printer authority
US8826004B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2004 |
| Grant date | Sep 2, 2014 |
| Priority date | — |
| Expiry date | Jan 28, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/56
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A low-cost, network based, secure printer that can provide multiple vendors with independent protected access, as authorized by a secure printer authority, is provided. The secure printer authority issues certificates for each secure printer and authorized vendor. Each certificate includes a public key and identification for the respective secure printer or vendor. The certificates are utilized during generation of a secret session key that preferably can be utilized only once to print the requested document. The secret session key is used by the vendor to encrypt the document, and used by the printer to decrypt the document. Since the secret session key is preferably valid for only a single document, printing of the document can only occur once, thereby preventing any fraudulent printing of the document. Additionally, only vendors authorized by the secure printer authority will have the ability to establish session keys with the printer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.