Lucas Castro
I’m a software engineer, husband, father, latter-day saint, and life-long learner. I like to think deeply about things.
Intro to Self-Sovereign Identity
for JavaScript Developers
Verifiable Credentials for the Web in a Nutshell
Today's Agenda
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A little bit about my background
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What is Self-Sovereign Identity?
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Technology behind SSI
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Architecting a simple SSI-based software
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Developer resources for building web apps with SSI
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Passwordless Authentication Example
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Q&A
About Me
Lucas Castro
Developer Advocate, Trinsic
@lucasamonrc
What is SSI?
Human Identity
| Intrinsic | Extrinsic |
|---|---|
| Likes, dislikes, personality, physical appearance, etc. | Credentials, documents, artifacts, etc. |
| i.e. How we identify ourselves | i.e How others identify us |
Can you think of any way how are these identities expressed digitally?
What is SSI?
"Self-sovereign identity (SSI) is an approach to digital identity that gives individuals control of their digital identities." [1]
How do we ensure trust?
Core Technology
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Agents
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Verifiable Credentials
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Decentralized Identifiers
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Blockchains and Verifiable Data Registries
Verifiable Credentials
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Cryptographically-protected equivalent of paper credentials
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Carried by the holder on a smartphone or other computing device
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Not on a blockchain
Cryptographically-protected data that proves that you are you!
Traditional Systems
SSI Systems
Use Cases
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Verify user identity to process payments
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Issue digital government documents such as birth certificate, driver's license, etc.
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Issue and verify medical documents such as exemptions, vaccination cards, etc.
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Implement user authentication and management
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Can you think of something else?
Use Cases
Ok. But HOW?
Our Problem
| Issuer | Wallet | Verifier |
|---|---|---|
| A way to issue account credentials | A place to save account credentials | A way to verify account credentials |
Use Case
Passwordless login - user authentication
What we need
Passwordless Login
| Issuer | Wallet | Verifier |
|---|---|---|
| A way to issue account credentials | A place to save account credentials | A way to verify account credentials |
Our Solution
What we need
| Issuer | Wallet | Verifier |
|---|---|---|
| Trinsic Studio | Trinsic Wallet | Credential APIs |
SSI Developer Resource
Final Result
Thank You!
Reference
[1] Ferdous, Md Sadek; Chowdhury, Farida; Alassafi, Madini O. (2019). "In Search of Self-Sovereign Identity Leveraging Blockchain Technology"
If You Need to Contact Me
Website: https://lucasacastro.dev
LinkedIn: https://www.linkedin.com/in/lucasamonrc
Email: lucas@trinsic.id
UtahJS Slack: @lucasamonrc
UtahJS: Intro to SSI
By Lucas Castro
