Self Sovereign Identity is a new cryptographic technology that enables individuals and organizations to assert their own identity. The self sovereign identity is private and not disclosed.


Decentralized Identifiers are identifiable endpointsbelonging to a SSI, and can be shared with the world. For example documents, wallets, smart contracts or programmable agents.



  • You start with an empty digital wallet.

  • What you accept into it is up to you.

  • What you share from it is up to you.

  • Whether anyone trusts or accepts what you share from it is up to them, & depends on the reputation of who issued it to you.
  • Timothy Ruff
    GP, Digital Trust Ventures


    Digital identity is an infrastructure necessary to do most everything on the Internet. And while there have been many solutions through the years, It remains a problem.

    Companies own the digital identities of the people that use their services. Centralized databases are a security risk for cyberattacks; not to mention the low integrity of stored data, and users have little to no control of how their data is secured. From business perspective digital identities are a huge administrative overhead, highly costly and a permanent potential risk (in case of data breach).

    Self-Sovereign Identity technologies give individuals and companies the ability to control and manage their own digital identifiers. This technology is gaining momentum as it solves previously unsolvable challenges. With the emergence SSI open standards, a new layer of the internet emerges for the identity of people and organizations. SSI represents a new paradigm — it changes the identity game completely.

    Any company that collects, stores or sells personal information can potentially be revolutionized using SSI technology.

    Blockchains are used, but in not the way you know

    Blockchains used for cryptocurrency exchanges solve the double spend problem. Their simple system of identifiers is a ledger of public keys.

    Decentralized Identifiers (DIDs) and the accompanying DID Documents enable individuals to share abstract identifiers (DIDs) with an associated public key and a resolution end-point. This supports the ability to message and transact with the DID owner. The transacted data (like a passport copy for example) is unlikely put on blockchain (although you could). DIDs are hashed references to your data, that only you can fully operate.

    Potential to reduce Data Security Risk

    The Public Key Infrastructure that underlies SSI provides a significant improvement by providing a secure encrypted tunnel of communication between an institution and its customers.

    Banks, Insurances and Governments are some of the early adopters of SSI not because they want to support “individuals owning their own identity” but because the security profile of the technology is so much higher than the current technology available to them with various forms of two factor authentication.

    Co-opetition & collaboration is the new way of doing business

    Standards are a common infrastructure that competitors develop so they can compete based on the products build upon them. This is good for all of us. Common standards ensure the technology is interoperable.

    For example a verifiable credential issued by one company’s software is viewable in any number of individual wallet vendors’ products and is readable by the verifiers’ software, even if it was created by a different vendor then the issuer. This interoperability is a critical feature for governments and creates new markets where companies develop competing products and services.