Intention

The Blobaa project aims to provide authentication mechanisms on top of a decentralized, neutral and highly available infrastructure -> A blockchain. It uses the Ardor blockchain to achieve these goals.

Concepts

The blobaa project contains the following two concepts:

BBA DID Method

The bba DID method is an implementation of a decentralized identifier and listed within the official DID method registry. A DID is one of the two key technologies of the self-sovereign identity model.

For further information please have a look at the bba DID method repository.

Attestation Protocol

The Attestation Protocol allows the creation of PKI-like systems in which chains of trust (so-called trust chains) can be build and managed via blockchain addresses.

A second module, the Claim module, can be used to create verifiable claims for claim-based authentication.

Use Cases

Various use case are conceivable:

• An identity system for self-sovereign identity could be build, in which an entity is able to decide what data it wants to share with whom.

• An additional security factor for website authentication could be developed where a trusted entity serves a website, sings the domain through the attestation protocol, and displays it on that site. A website user could then compare the authenticated domain with the website's domain. If they match, one can be sure to visit the official website.

• A login system, similar to Facebook or Google Login could be developed, where an entity can easily login without revealing its private data and relying on a centralized infrastructure.

• An entity could spawn its own (offchain) chains of trust with the attested blockchain address as trust anchor. This leads to a system where even the trust anchor can be verified and validated. (IoT)

There is a Demonstrator available to show the Blobaa project in action. Have a look and play around :)

You can find technical documentations within the Documentation page.

There is a reference implementation of the Attestation Protocol and Claim Module within the Blobaa GitHub organization.