Enhancing Privacy in Cross-Chain Messaging: Untraceable Credentials with TEEs
summary
Integritee and Encointer prototype uses trusted execution environments to move personhood proofs from Encointer to another chain without linking accounts, using Intel SGX TEEs that verify storage proofs, open TLS connections, and sign extrinsics on behalf of users; an Integrity chain on‑chain d-cap process performs remote attestation and whitelisting; demo runs three chains (Encointer, Integrity, node template), Alice and Bob successfully store personhood IDs while an unregistered user 30 fails, yielding unlinkability under a k-anonymity assumption and available SDKs + attestation REST API.
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chapters (9)
- 0:00Privacy-preserving cross-chain messaging
- 2:29Traditional cross-chain limitations
- 4:59TEEs for unlinkable credentials
- 7:04Trusted Execution Environments
- 9:11Remote attestation for trust
- 12:42TEEs vs XCM and Axiom
- 14:49Demo: unlinkable credentials
- 18:24Building TEEs with Integritee
- 20:35Q&A
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