Badge granted patent for biometric public key providing revocable credentials

Enterprise identity authentication software maker Badge has been awarded a U.S. patent (11799642) for a biometric public key system that enables revocable credentials.

A biometric public key is created that is partly dependent on an individual's biometric data, but without storing that data on devices. Authentication takes place using only the biometric, and by not relying on a hardware root of trust, can work on any device. The biometric template is created with “Sparse Representation” and additive noise, …

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