Technical Architecture
SyncID is a reference point that is linked to the user's Cardano wallet through a dynamic SBT (soul-bound token) which the user has full control over.
Its architecture is designed to offer a Sybil-resistant solution for digital identity, combining proof of personhood authentication for wallets, advanced encryption, decentralized storage, and zero-knowledge cryptography to ensure the integrity and privacy of user identities.
Data Encryption & Storage - SyncID starts by ensuring robust data encryption. All sensitive user data such as personal web2 identitifiers and biometrics is encrypted directly on the device using the user's Cardano wallet's private key and stores it on IPFS/IAGON. - The encryption key is sharded among the nodes, and MPC is utilized to reconstruct the information in memory during payload delivery.
Privacy-Preserving Data Use SyncID strictly controls access to decrypted data through user permissions, preserving privacy. Two methods enable 'use-access':
Verifiable Credentials: SyncID issues an on-chain credential embedded with anonymized sensitive data and related metadata, allowing for identity verification.
Zero-Knowledge Proofs (ZKPs): Applications use zero-knowledge proofs to query SyncID's oracles, validating data without revealing identifiable information, thereby ensuring privacy during verification.
Component Breakdown:
Client-Side (User Device) | |
Component | Component |
Authentication & Encryption | User connects their wallet or email; data is signed and encrypted client-side using their wallet's private key. |
Social Account Integration | Users attach social accounts |
Blockchain Address Integration | Users can add multiple blockchain addresses for multi-chain support. |
Biometrics | Palm based vector data |
Data Processing Layers | |
- Transformation | Data is normalized for consistency. |
- Enrichment | Additional context is added to the data. |
Data Storage & Oracles | |
- Oracle & Encrypted Warehouse | Stores fragmented, encrypted data securely; provides query and retrieval interface. |
- ZKP | Create a ZK proof based on ZK Snarks for the Biometrics |
- Decentralized Storage | IPFS/IAGON |
Updation, Query & Verification | |
Updation Enginer | Users can update the nonsensitive metadata values. |
Query API | Processes data queries |
Zero-Knowledge Proof (ZKP) API | Allows for privacy-preserving querying through zero-knowledge proofs. |
Verification Engine | Issues and verifies credentials using SyncID Registery |
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