DoubleTake™ Personalization System
The Final Security Frontier - Machine Verification
Addressing the need for absolute and instant authority on the authenticity of a DPS issued card, we have equipped the system with an option to produce a graphic-based Machine Verification Key (MVK). This encrypted number, created in concert with the DoubleTake™ event at issue, allows for absolute verification that the document being presented is exactly as issued. A simple scan of the document being verified, run through a verification module and compared with the MVK issued with the document, yields a pass or fail. The MVK can be stored on the card in a variety of forms, or in a central database. The verification module decrypts the spatial pattern stored in the MVK, and compares it to the pattern present in the scan of the document being examined. If the patterns match, the document is authentic. The MVK number is a representation of the spatial relationship between the character counterforms used for the DoubleTake™ screens. As each card issued will have a different name/ picture combination, as well as a random element derived by which character begins each line of the three colour plane screens, each MVK will be unique. There are more than 66,000 possible spatial patterns for each colour plane, the three planes together comprising more than 2.88 x 1014 unique pattern combinations. Figure 10 is an illustration of the spatial pattern present in the cyan colour plane of the photo ID example shown in Figure 6.
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| Figure 10 - The DoubleTake™ character counterforms on which the MVK is based. |
Other security features:
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