1 Why the internet is missing an identity layer—and why SSI can finally provide one

Alex Preukschat and Drummond Reed

Self-sovereign identity—commonly abbreviated SSI—is a new model for digital identity on the internet: i.e., how we prove who we are to the websites, services, and apps with which we need to establish trusted relationships to access or protect private information. Driven by new technologies and standards in cryptography, distributed networks, cloud computing, and smartphones, SSI is a paradigm shift for digital identity similar to other technology paradigm shifts: for example, the shift from keyboard-driven user interfaces (e.g., MS-DOS) to graphical user interfaces (e.g., Windows, Mac, iOS), or the shift from dumb phones to ...

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