sub0 Asia 2024 - Prabhu Eshwarla (Capsule Corp)
summary
A live chain and TEE stack runs a Substrate layer‑1 plus a network of SGX enclaves, with 700 nodes and ~90 validators and 700k on‑chain events to date. It implements decentralized key custody by splitting private keys with threshold decryption (Shamir) into TEE-held shares, uses on‑chain attestation and proof‑of‑availability, enforces bonding/unbonding for operator slashing, offers short‑ and long‑term “secret NFT” or capsule storage, and mitigates side‑channel risk via geographically distributed clusters, audits and a public bug bounty.
AI-written summary · about
chapters (10)
- 0:00Co-processors in web3
- 2:06What are co-processors
- 8:26TEE vs ZK co-processors
- 13:00Decentralized key management
- 16:09Key management security
- 19:17Multi-layer key storage
- 21:44Side-channel and replay attacks
- 24:15Operator accountability
- 27:03Future multi-proof systems
- 29:08Summary & Q&A
related talks
36mAttacking & Defending Kubernetes TEE Enclaves in Critical Infrastructure
16mDecentralized Secrets for Identities Networks & Platforms
50mTrusted Execution Environments Meet the Blockchain
24mEnhancing Privacy in Cross-Chain Messaging: Untraceable Credentials with TEEs
37mPETs of the world unite! Conquer the middle ground in the performance vs...
09mWhy Institutional Custody Breaks on Shielded Chains
38mConfidential Containers Explained
29mKeynote: Gateway