Signing on Behalf of Users Without Their Private Keys
summary
A noncustodial framework called Vincent uses PKPs sharded across Lit nodes with threshold signatures inside TEEs to let apps sign for users without holding private keys; delegation is recorded on‑chain, revocable, and tied to scoped Abilities and Policies that enforce spend caps and allowlists. Each app/user pair gets an agent wallet per app that is siloed. Demo shows a Vincent Yield app where a 50 USDC deposit activates automated Morph o vault rotations inside Lit Actions; the live app holds ~500k USDC and reports ~8–8.5% base yield.
AI-written summary · about
chapters (15)
- 0:00Start
- 0:09Intro, team, agenda
- 1:27Lit Protocol overview: PKPs, TEEs, threshold crypto
- 3:30Access control + encryption; Lit Actions (JS in TEEs)
- 5:44Network stats & resources
- 6:33What is Vincent? Non-custodial, scoped, revocable delegation
- 8:30Use cases: yield optimization, cross-chain rebalancing, automation
- 10:33Live demo: Vincent Yield (Morpho vault maximizer)
- 11:39Consent flow: auth → grant Abilities → on-chain delegation
- 14:00Agent wallet per app; deposit & activate strategy
- 15:36Abilities & Policies (guardrails like spend limits/allowlists)
- 18:25Abilities are JS, composable, can decrypt secrets, call SDKs
- 19:40App architectures
- 23:53Resources: starter app (DCA), ability/policy kit, docs, Discord
- 25:40Q&A: starter kit learning curve; pointers to videos, office hours
related talks
10mUniversal Composability Digital Ownership & Autonomous AI
03mWorkshop
19mThe Last Wallet You'll Ever Open
18mDecentralized Signing and Encryption
18mModern money management with
16mDecentralized Secrets for Identities Networks & Platforms
18mAgents With Allowances, Embedded Wallet Tools For A New Economy
23mThe Users are Here with Privy