SaltNHash

Joined 7 years ago

Karma
54
Submissions
37
Member since
Jun 13
Co-founder, deep tech cyber startup Tide Foundation
View on Hacker News

Recent submissions

Comment · 6 months ago
Great material. Good onya for sharing!
Comment · 9 months ago
Tide team here. Our dev Sasha built this PoC in a few weekends, using our SDK. Her core idea: Remove the risk of compromised keys, and the overhead of managing them at scale, by never having a key to steal. Instead the SSH signing operation is distributed across nodes using novel MPC-based threshold EdDSA – the key literally never exists in whole, not even momentarily in a TEE.

KeyleSSH is: - Browser-based SSH console - Auth via OIDC, signing via distributed novel MPC-based threshold EdDSA - appx 30 lines of core signing logic (the SDK does the heavy lifting)

It isn't (yet): - Production-ready. It's a PoC. - Fully decentralized. The nodes currently run on our testnet – we're working toward a proper decentralized mainnet. If you run infrastructure and are curious about operating nodes, happy to chat. - A silver bullet. Browser-based means endpoint compromise is still a threat vector.

Live demo: demo.keylessh.com Source: github.com/sashyo/keylessh

AMA about the protocol, the SDK, or the threat model.

Comment · 1 year ago
Yes it does. It replaces it with a break glass quorum approved process.
Comment · 1 year ago
Comment · 1 year ago
Someone once asked how would you cope with lawful interception of corrupt law enforcement agencies, so allow me to explain TideCloak in that context: imagine a corrupt agency requests the identity information of a specific user of TideCloak: they file a subpoena from the TideCloak operator – however the root identity of the user doesn't reside there. It's with Tide's Fabric. So, the agency has to file subpoenas in all the jurisdictions that this particular user's ID is split. Let's say that's this user's authority is spread across 17 countries across 9 jurisdictions – you'll need the cooperation of all those jurisdictions to get access to a single user identity. Still possible for an Interpol-coordinated task force for a valid law enforcement operation, but that's going to be very hard to get under the radar if the agency is corrupt.

Live from the official Hacker News API

A modern reader for Hacker News · SvelteKit + Skeleton