A prototype · Shamir secret sharing
Split the secret.
Keep the trust.
Keyver fractures your recovery phrase into pieces and gives each one to someone you trust. A chosen few, together, can put it back. Anyone alone — sees nothing.
§01
How it works
One shape, broken in three movements.
[ 01 ]
Split
Your secret is divided into M shares using Shamir's algorithm. Locally. In this tab.
[ 02 ]
Distribute
Each share is handed to a guardian — a sister, a notary, a friend, a safe. Your choice of trust.
[ 03 ]
Recover
Any N guardians together can reconstruct the secret. Fewer than N reveals nothing — by math, not by promise.
Try it · Live
Pick any three fragments — watch the private key return.
A real, throwaway secp256k1 private key — the same kind that controls an Ethereum wallet — split locally into 5 Shamir shares with a threshold of 3. Click fragments — or press 1–5 — to gather a quorum. Everything runs in this tab.
⚠ Illustrative demo only. Unlike the Create flow, this preview generates and reconstructs the key in the main browser thread, so it does not provide the same isolation guarantees. Never use it for a real wallet.
- 01 · Split
- 02 · Gather
- 03 · Recover
Quorum
0 / 3
Awaiting first share.
Original private key
Reconstructed private key
Pick 3 more fragments to rebuild it.
On sustaining the work
How the project would sustain itself.
For a security tool, trust would have to be earned through independent audits — work that is expensive and never finished. The intent is that the protocol would be paired with a native token, $KEYVER, whose fees would be routed back into sustaining the project itself: funding audits, ongoing maintenance and bug bounties, rather than toward profit.
An honest list
What this does not do.
A prototype is allowed to be small. It should not pretend otherwise.
- 01
It does not accept your real seed phrase — it generates a fresh throwaway key, in this tab, every time.
- 02
It does not connect to any wallet, any blockchain, or any server. The key never leaves your browser.
- 03
It does not transmit shares for you — in a real product, that would happen over an encrypted channel.
- 04
It does not protect against guardians colluding above the threshold.
- 05
It has not been audited. It is a demonstration of an idea.