We think that Self Sovereign Digital Identity is one of the key elements in the shift towards a distributed decentralized financial system (see also FINthinker’s Predictions for 2018). Below are examples of organizations which engage on this topic each with a different approach:
- Synacts – an identity layer for the Internet, protocol, ETH spin-off
- Selfkey – blockchain, non-proft foundation, Asia focus (whitepaper)
- Val:ID – blockchain, smart contracts, wallet, non-profit foundation (whitepaper)
- uPort – Ethereum and smart contracts based (whitepaper)
There are more … comments with links welcome.
2018 will bring …
2017 was an interesting year where many developments started to get real traction. Just think about blockchain, bitcoin and artificial intellgence.
2018 will be even more interesting and substantially more challenging. A few predictions for 2018 are as follows:
There will be three core changes for financial services:
- Tokens (see Towards a digital barter economy?)
- Self Sovereign Identity (see Self Sovereign Digital Identity)
All three aspects levitates a shift towards a distributed decentralized financial system. This affects the core and challenges legacy status quo and its existence in the future.
In addition fueled by the increasing tokenization and availability of blockchain based systems there will be a shift towards
- Mobile Payments
- Holistic mobile wallets
- Global Solutions
There will be no other options for incumbents to integrate into the evolving mesh than to provide API’s to access information and services and to start to rely on others to provide crucial information. Self contained and closed financial services companies as well as local solutions will increasingly face headwinds.
- Open Banking / API’s
- Global solutions
Last but not least – user interfaces will become much more natural and transparent. The users will be amplified with new sense and access to information supported by intelligent agents.
- Natural interfaces, Voice (see Noisy Channel(s) to Channel-less )
- Artificial intelligence, Smart Assistants
Regulators will start to come up to speed with the changes. They will find ways to agree with business changes but also ethical standards across borders acknowledging the global nature of digital eco systems. A big challenge will be on the very old tax systems which are not ready yet for the shaping economy.
- Tax System
These changes are fundamental – there is a ongoing paradigm change where inherent distributed digital approaches start to outperform the automated legacy processes. There are two big dangers out there
- Underestimating the ongoing change (see Noisy Channel(s) to Channel-less)
- Overestimating the achievements made (see Digital Tur Tur)
Many of the current developments seem to turn time back and bring up systems again which were used in the past but difficult to apply as physical distance was a limiting factor. Digital changes this – the world becomes some sort of a global village. Have a look at Yap, The Island Of Stone Money – the first productive blockchain system.
Asking questions is a way of getting in and out of your box at will and to develop new concepts, thoughts and ideas. Asking yourself (and others) many questions every time is a form of gym to workout your brain. Martin Gaedt explores this in “Rock your ideas” (available in German only). Look around and start to challenge yourself and others – rock your ideas!
How will Artificial Intelligence affect crime, war, justice, jobs, society and our very sense of being human? Max Tegmark provides a fascinating perspective into different forms of life, its evolution and physical limits in Life 3.0. The book defines basic terms like intelligence and busts common myths. Max raises many questions, provides answers and stresses the importance of having accepted ethical standards in the rise of AI.
Can humans overcome death? Should they? Homo Deus by Yuval Noah Harari looks into a world where more people die from eating too much then from having nothing to eat and where more people commit suicide then there are victims of soldiers, terrorists and criminals together.
Do you believe what you can see? Can you only see what you believe? The Internet of Us: Knowing More and Understanding Less in the Age of Big Data by Michael P. Lynch explores this paradox.
What is money? What is currency? What if companies issue their own money? Before Babylon, Beyond Bitcoin: From Money that We Understand to Money that Understands Us by David Birch s a fascinating book exploring how technology is changing money.
Do you know what work is? Do you work in the office or are you just busy playing roles without producing value? Lars Vollmer provides answers in his book Zurück an die Arbeit: Wie aus Business-Theatern wieder echte Unternehmen werden. The book is available in German only.
What is important? What is true? Is it important, that it is true? Gunter Dueck explores these questions in his book Flachsinn: Ich habe Hirn, ich will hier raus. The book is available in German only. How can one escape from the growing shallowness? Maybe by listening to these books and by challenging yourself …
The publications above made me think … What books made you think? How have they influence “your box”?
A good time to “workout” our brain and reflect on “our box” during the holiday season.
Before we explain what is self sovereign digital identity, let us first define identity, then elaborate on digital identity which inherently leads to the final form of digital identity management where each user controls their own digital identity.
- Identity is a uniquely human concept. It is that ineffable “I” of self-consciousness.
- We all have a Social identity – the qualities, beliefs, personality, looks and/or expressions that make us a person
But how do we proof our identity when interacting with others? Lets look at an example:
You interact with a person who claims to be John Smith and wants to do some transactions with you. John gives you his passport (or a in some countries his driver’s license) as a proof of his identity claim. You attest John’s claim by looking at the passport, determining whether that it is authentic and then comparing attributes captured in the passport with the person in front of you.
This process includes the following concepts:
- claim – a claim that an actor would like to consider true
- proof(s)- evidence that something is true, often based on a trusted certificate
- attestation – verification by an independent party that a claim is true
You may now create a record in your system with a customer identifier, a copy of the passport and additional attributes such as address, date of birth by further verification either through utility bills or other formalized evidences. This record is a digital identity and represents relevant aspects of the social identity and is now the basis for your business interactions with John.
This may all sound simple and rather straight forward, but
- Attestation is typically a manual process where unstructured data is captured and verified against the available proofs which must be collected and stored
- Only a subset of the captured information is constant. The captured attributes may get out of sync with reality
- The presented proofs may be faked, and the quality of the attestation depends on your skills to identify such issues
- Wherever John wants to have additional interactions, a similar process is required leading to the creation and attestation of another digital identity
- Whenever information changes, John must provide updates to all relevant parties
- John has no control what happens with his data and who is accessing it
Juridical persons and things can also have a digital identity – however in this post, we will continue to only focus on natural persons and look at ways such digital identities can be managed.
Digital Identity Management started with centrally managed approaches. The authority, of such approach, that manages the digital identity data becomes the guardian and qualifies the digital identities. As networks evolved, federated approaches were adopted where multiple authorities jointly manage digital identities. User-centric identity is expanding where a user has more control over his digital identity and decides whether to share an identity from one service to another. Such sharing capability is based on standards like OpenID (2005), OpenID 2.0 (2006), OpenID Connect (2014), OAuth (2010), and FIDO (2013). It’s important to note that all these approaches are centralised but the user has more influence as to how the information is shared.
The concept behind self-sovereign digital identity is to give the user full control over his/her digital identity. It is a distributed identity management approach where a person creates a unique identifier for their digital identity, places claims and asks others in the network to perform attestation. Claims and attestations can be secured using cryptography with the public and private keys of the involved parties.
- An actor can encrypt a claim with his private key
- The actor can use the public key of the attestation authority to keep attestation private
- The attestation authority can decrypt the message with its private and the users public key
- The attestation authority can verify the presented proof and sign if using its own private key
- The attestation is then sent securely back to the user
The user now has an attribute with a digitally secured attestation and with proof of a verified authority claim(s). Over time network of users builds up, where identities are maintained and trusted through attestation of proofs given by others in the network. Attestation authorities can be official authorities, organizations and other users. The quality of an identity in such a system depends on the quality of the involved authorities. Ideally this approach will introduce a single user-managed digital identity which can be used in the network when required and becomes the core of the genuine digital self (please see Be your digital self)
Christopher Allen has defined ten principles to ensure the user control that’s at the heart of self-sovereign identity
- Existence – users must have an independent existence
- Control – users must control their identities
- Access – Users must have access to their own data
- Transparency – Systems and algorithms must be transparent
- Persistence – Identities must be long-lived, ideally last forever
- Portability- Information and services about identity must be transportable
- Interoperability – Identities should be as widely usable as possible
- Consent – Users must agree to the use of their identity
- Minimalization- Disclosure of claims must be minimized
- Protection – the rights of users must be protected
It is important that the private keys need to be well protected as they grant full control of the digital identity.
So far, this post discusses the creation of a digital identity. In a future post we will look at how do we bridge between the real and the digital world. How can a system verify the user is who they claim to be?
As the world becomes hyperconnected (please see “No ‘OFF’ Switch“), digital identity and security will continuously gain importance. As there will be, in the foreseeable future, no worldwide authority to manage digital identities, the world will converge towards a self-sovereign identity system where users own their data and various actors perform attestation in a mutual way. The system, in its nature, follows paradigms of earlier times where trust was the result of a social network. The introduction of Digital changes the proximity requirements allowing applicability of such system on a global scale.