Bitcoin Stack Exchange is a question and answer site for Bitcoin crypto-currency enthusiasts. It only takes a minute to sign up.
Sign up to join this community
Anybody can ask a question
Anybody can answer
The best answers are voted up and rise to the top
I am wondering if it is possible to implement this flow with bitcoin private keys, similar to how certificate authorities have a root cert and an intermediate cert used to sign csr's. It would be nice to have this feature for a wallet, where you could keep your root safe but have some limited signing ability via an intermediate. Has anyone thought about something like this before?
This idea is basically delegation: the root key delegates the ability to sign for an output to another key. This is not possible in Bitcoin, but there has been discussion about such delegation in the form of Graftroot.
With graftroot, the participants establish a threshold key, optionally with a taproot alternative, just as they do with taproot. At any time, they can delegate their ability to sign to a surrogate script by signing that script (and just the script) with their taproot key, and sharing that delegation with whomever they choose. Later, when it comes time to spend the coin, if the signers aren't available and the script must be used, the redeeming party does whatever is required to satisfy the script (e.g. provides their own signature and a timelock, or whatnot) and presents that information along with the signer's signature of the script.
You can get bonuses upto $100 FREE BONUS when you:
💰 Install these recommended apps:
💲 SocialGood - 100% Crypto Back on Everyday Shopping
💲 xPortal - The DeFi For The Next Billion
💲 CryptoTab Browser - Lightweight, fast, and ready to mine!
💰 Register on these recommended exchanges:
🟡 Binance🟡 Bitfinex🟡 Bitmart🟡 Bittrex🟡 Bitget
🟡 CoinEx🟡 Crypto.com🟡 Gate.io🟡 Huobi🟡 Kucoin.
Comments