Remnara Confidential Payouts: an XRPL signing key no person can use

Описание: Remnara is a live, non-custodial XRPL inheritance product. Its biggest
security liability is the XRPL distribution signing key: today it lives as a
hot secret in the backend, so whoever controls that server can move funds.

Built for Flare Summer Signal, this moves that key into a hardware-isolated
TEE on Flare Confidential Compute. The enclave only signs an inheritance
payout when an on-chain Flare contract confirms every release condition is
met: owner inactive, policy armed, guardian veto window cleared, timelock
elapsed. The key is never in the server's memory and cannot be used by any
person, only by protocol rules.

What we built for the program:
An XRPL-native signer running inside the TEE (secp256k1, SHA-512Half,
canonical low-S DER), written in TypeScript and Go, proven byte-for-byte
identical to xrpl.js
RemnaraInheritance.sol, an on-chain authorization gate mirroring Remnara's
real release logic
A full FCC deployment on Coston2, including a real hardware-attested TEE
promoted to production on our own GCP Confidential Space VM

Try the interactive demo: https://remnara.com/fcc/
Remnara: https://remnara.com

Bounty 2 (Confidential Compute Apps), Bounty 1 (Interoperable Asset Products)
Team: Burst Labs