PassFree

What is PassFree? How can PassFree make your life better or your business more efficient? Browse some of the documents below to learn more about this revolutionary new system.

Introduction to PassFree (pdf)
Benefits of PassFree systems (pdf)
About Improved Electronic Access Control using PassFree (pdf)
Use Cases for PassFree (pdf)
Behaviors of PassFree systems (pdf)
PassFree Business Brief (pdf) (PowerPoint Slideshow)
PassFree Invention Brief (pdf) (PowerPoint Slideshow)
PassFree Products and Services (pdf) (PowerPoint Slideshow)
Requirements for PassFree devices (pdf)
Specifications for simple PassFree lock and key devices (pdf)
Brief list of the various lock and key models (pdf)
Bluetooth and PassFree (pdf)
Notes on Chapter 15 of Practical Cryptography (pdf)
Circuit diagram for wireless power transmission (pdf)
Data flow diagram for many PassFree use cases (pdf)
Data flow diagram for central authentication PassFree use cases (pdf)
Data flow diagram for document signing PassFree use cases (pdf)
Model AN, network-based administration diagram (pdf)
Model KB, button-operated key device diagram (pdf)
Model KB, single-button-operated key device sketch (pdf)
Model KB2, multi-button-operated key device sketch (pdf)
Model KE, electrically-operated key device diagram (pdf)
Model KN, network-operated key device diagram (pdf)
Model KT, thumbprint-operated key device diagram (pdf)
Model KT, thumbprint-operated key device sketch (pdf)
Model KT2, thumbprint-operated key device with buttons sketch (pdf)
Model KTU, thumbprint-operated key device with USB connector instead of wireless connection sketch (pdf)
Model LC, multipurpose computer lock device diagram (pdf)
Model LE, electrically-operated lock device diagram (pdf)
Model LN, network-based lock block diagram (pdf)

Some of the early work on PassFree is available for demonstration:

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