Decentralized Identification Proof of Idea with Microsoft Unified Assist — The Diploma

We’ve been arduous at work constructing our Decentralized Identification (did) toolkit that we introduced final month in our roadmap. It should allow customers and corporations to create their very own digital identities, challenge verifiable credentials (claims) and likewise allow builders to combine these identities into their purposes. We’re working with the Microsoft Providers crew to develop an preliminary Proof of Idea that makes use of all the core elements of decentralized identities and verifiable credentials.

The entire issues we're constructing are primarily based on the World Wide Web Consortium’s (W3C) up and coming credentials specifications that might apply to our daily lives within the not so distant future. The W3C is the principle worldwide requirements group for the World Huge Net.

What's Decentralized Identification

A great way to know decentralized IDs together with credentials is to match it to your driver’s license within the bodily world. It's issued by the federal government and it asserts {that a}) your identify is your identify b) you appear to be the image on it c) your birthday is your birthday and d) you'll be able to drive a automobile (amongst different issues). Till now, we haven’t had a option to assert those self same kinds of issues on-line aside from by sending an image of your license. And we all know that may simply be photoshopped.

Decentralized id offers a option to assert those self same issues within the on-line (non-physical) world with certainty. The federal government might challenge you your driver’s license as a “verifiable credential” which asserts the very same issues, however in a digital format that's simply introduced to 3rd events and people third events can simply confirm the claims made within the credential. All of this makes use of public key cryptography to make sure every little thing is tamper proof and 100% verifiable.

One other essential facet of that is that you personal your id and all the info related to it. Not like current on-line identities which might be owned by the Fb’s and the Google’s of the world that you haven't any management over.

The Diploma State of affairs

The diploma state of affairs is an instance from Microsoft’s Decentralized Identification whitepaper and exhibits off all the important thing points of decentralized identities from creating ids, issuing credentials, and eventually verifying the credentials. That is the proof of idea we’re engaged on.

Instance Identification State of affairs — src: Microsoft Decentralized ID whitepaper

On this PoC, the next actions happen:

  • Alice, the lately graduated scholar, creates her decentralized ID
  • U, the college Alice went to, additionally creates an ID that represents the College
  • U points a credential to Alice that asserts that Alice graduated from U in 2019 with a level in Pc Science — that is her digital diploma, the equal of her paper diploma in right now’s world
  • Alice, who's now searching for a job, presents her digital diploma credential to a possible employer to show that she has diploma from that College

The Technical Half

Identifiers, aka “dids”

Identities will likely be rooted on GoChain, offering an immutable registry of decentralized IDs. While you create a did and register it with GoChain, it should look one thing like this:


That is the usual format of a did. Observe the second a part of the did the place it says “go”, that's the “methodology” so once you give somebody the did, they may have the ability to resolve it utilizing the GoChain resolver and in flip will likely be offered the customers “did doc” which primarily comprises a set of cryptographic materials similar to public keys that may used for authentication and verification.

Verifiable Credentials

In our diploma state of affairs above, the college, U, has it’s personal did and it’s personal set of keys from which it will possibly signal the credential that Alice graduated from U in 2019 with a level in Pc Science. It does this by taking Alice’s did (eg: did:go:123456), the declare that she graduated in 2019 (eg: “standing”: “graduated”) and that the diploma was Pc Science (eg: “diploma”:”laptop science”), then wraps that up in an information construction, indicators it with the college’s personal key and sends the signed credential to Alice.

Alice can retailer this credential for later use, similar to on her cellphone or ideally her cloud storage so she doesn’t lose it.

When Alice offers the credential to a possible employer, that employer can examine the signature of the credential to confirm that the info wasn’t tampered with and that it was signed by the college U.

The Way forward for Identification

Utilizing cryptography and blockchain collectively for id, opens new doorways that merely weren’t doable prior to now. Even at present, there isn't any manner to supply a diploma to an employer like demonstrated above, however as soon as folks begin adopting this expertise, it’s not solely doable and fairly straightforward to implement, it’s a far superior manner of doing it. It’s rather more environment friendly and it prevents fraud. It’s a identified reality that individuals lie on their resumes and lots of people get away with it until the corporate calls the college to confirm. With verifiable credentials, no employer must name a faculty once more. And that may be utilized to each different a part of a resume too.

Even within the bodily world, it’s a greater option to do it. Think about your driver’s license was issued this manner and also you wished to go purchase a beer in your 21st birthday. You could possibly simply faucet your cellphone to switch your “driver’s license credential” (and even simply the truth that you might be 21 together with your image) on a machine on the entrance to the bar and it could possibly be verified immediately. No extra pretend IDs (which may be checked out as a disadvantage to some 😆).

GoChain is on a mission to make decentralized applications a reality and id performs an enormous a part of that mission. We love seeing massive corporations like Microsoft supporting the applied sciences that make that mission doable similar to id. They're supporting varied efforts round decentralized id, you could find extra information here. We’re proud to be a serving to Microsoft obtain their imaginative and prescient.

“We’re actually excited to be working with GoChain on this venture as we’re seeing demand from our clients for a lot of these blockchain primarily based options. GoChain’s blockchain expertise is concentrated on enterprise use circumstances and backed by enterprise-grade help. The GoChain crew’s expertise permits them to construct enterprise options that underscore the worth in deploying to the Microsoft Azure platform.” — Billy Smolen — Program Supervisor, Microsoft Providers

Study extra about GoChain at

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