I'm surprised nobody mentioned self-sovereign identity and digital identity.

Here are some excellent links about the subjects:

http://www.moxytongue.com/2016/02/self-sovereign-identity.ht... http://www.lifewithalacrity.com/2016/04/the-path-to-self-sov... https://en.wikipedia.org/wiki/Digital_identity https://blog.cryptographyengineering.com/2017/07/02/beyond-p... https://pages.nist.gov/800-63-3/ https://www.forgerock.com/