title: Client SDK & Motr Cryptographic Enclave
start: 2022-06-01
end: 2023-08-01
project-url: https://pub.dev/packages/motor_flutter
associated-with: ../experience/sonr.yml
skills:
  - API Design
  - React.js
  - Flutter
  - WebAuthn
  - Cryptography
  - WebAssembly (WASM)
  - TypeScript
  - Developer Relations
description: |
  - Architected "Motr," a WebAssembly (WASM) cryptographic enclave compiled from Go, designed to run entirely in client-side Web Workers. This sandboxed environment securely handles Multi-Party Computation (MPC), data signing, and UCAN token generation without ever exposing private keys to the main application thread.
  - Built an edge-native orchestration layer using Cloudflare Workers, utilizing Durable Objects, KV namespaces, and Service Bindings to manage persistent cross-platform sessions, smart routing, and state synchronization across the decentralized network.
  - Pioneered a "Web2-to-Web3" authentication bridge by integrating WebAuthn (Passkeys/Biometrics) and standard OAuth 2.0 flows directly into the SDK, allowing developers to offer passwordless, seed-phrase-free onboarding to their users.
  - Implemented account-isolated client persistence leveraging Dexie.js (IndexedDB) to create a robust offline caching layer for cryptographic states, delegated capabilities, and decentralized web node (DWN) records.