One more devices and/or access control systems are described that securitize data and data transmissions using three sets of computing operations including authentication, validation, and securitization that allows or denies access to the data and/or the data transmissions. The system includes securitization of signals between one or more secure master and/or partial DASA databases for various user devices. Specific methods and devices for securing (primarily digital and normally two-way) communications using applications that offer the combination of securing communications from user devices with reader devices, are also is provided.
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Imagine the door and your phone both running the exact same dice machine, started from the same seed. Every time you show up, each side independently rolls the next number, and the door opens only if your number matches what it just rolled too. The actual key is never sent through the air, each side computes it from the time, a record number, and shared randomness. So a hacker who records today's code gets nothing tomorrow, because both machines have already rolled past it.
Technology areas where this patented method may apply.