Security printing method and system for enhancing security printing
US7916863B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2007 |
| Grant date | Mar 29, 2011 |
| Priority date | — |
| Expiry date | Nov 26, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/608
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A security printing method includes generating a security file having a plurality of metadata fields and an information field concatenated together in an initial sequence. A security file identification is generated from the plurality of metadata fields and the information field. The security file identification corresponds to the initial sequence and is a one-way function of the plurality of metadata fields and the information field. The method further includes selecting a custom scrambling technique based on the security file identification, and scrambling the initial sequence using the selected custom scrambling technique, thereby creating a scrambled sequence of the plurality of metadata field and the information field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.