How to Implement DDID
There are two approaches to implementing DDID in a Sovrin network: connectionless or connection-oriented.
In a connection-oriented approach, the issuer and the user have to establish a connection before the user can receive their credentials. However, once a user connects with an organisation, the organisation can directly issue a credential to the user’s digital wallet.
For example, an end user goes to a driving licence issuing entity and connects with them he establishes a channel of communication between them. Now, when the driving licence is ready, it is directly sent to his wallet.
In a connectionless approach, no prior connection between end user and issuing or verifying entity is required. In this type, the end user is given a QR-code to scan. Once the QR code is scanned, it either issues a credential which the user can accept or reject, or it asks for a certain verification of identity.
In a certain sense, the connectionless approach has a higher risk factor in regard to important credentials like driving licenses or passports. It is possible that, should someone get access to the QR code prior to the real user, they could fraudulently steal their identity. For that reason, in such instances, a connection-oriented approach is preferred. On the other hand, when we want basic verification or to sign up on social media or websites, a simple connectionless approach is convenient.
The very fact that DDID is set to change how we manage our personal identity forever means that there is a lot of early interest and attraction in the idea. No longer will anyone have to worry about losing importing personal identity information.
What’s more, at Reply, we worked hard and early to get ahead of things and apply DDID to the urgent and important need of COVID freedoms.
We have created a brand new platform that allows users to prove their identity and immunity status during the pandemic — making public gatherings safe from the risk of further COVID outbreaks.
Using the platform, once the user gets tested at a verified NHS test center, they receive an immunity certificate issued to their wallet in the app. If the user can not visit the test centre, he or she can take one of the approved home test kits and upload the test results directly onto the platform. Upon verification, according to the results, they will then receive their immunity certificate and be free to attend whichever mass gathering they so choose, from football games to concerts, to restaurants and more. Finally, we can get the country moving again.