Jurvis Tan
@jurvistan
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the first private collaborative multisig wallet
Not our keys. Not our business. By implementing Chain Code Delegation, Bitkey becomes the first private collaborative multisig wallet — what you do with your keys is your business, simplifying self-custody is ours.
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Collaborative key custody with one less tradeoff. Coming soon.
Your bitcoin balance should be your business. A new bitcoin improvement proposal (BIP) from @Bitkey engineer @JurvisTan and Bitkey alum @JessePosner keeps it that way. https://t.co/RQd30t1dfL
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This is joint work with @jesseposner and we would love to invite everyone to take a look, and provide any feedback in the PR, or the post on Delving:
delvingbitcoin.org
Hi all, Over the past several months, @jesseposner and I have been exploring a new approach to collaborative custody called Chain Code Delegation. By withholding BIP-32 chain codes and sharing only...
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On top of the initial mailing list post, the BIP draft also introduces a blind signing protocol, where delegators can help produce a signature without learning about the message or child key for which it produces a signature. https://t.co/4p5bTOJ9cx
In recent months, @jesseposner and I have been developing an idea where collaborative custodians sign transactions via scalar tweaks, so they never have to hold an XPUB and limit what they learn about your wallet. It’s called Chain Code Delegation:
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Chain code delegation is now a BIP draft: it enables collaborative custodians to continue to help you with key management and recovery without losing privacy. https://t.co/TmFelHHuSR Coming soon to a Bitkey near you!
github.com
We propose a new BIP for Chain Code Delegation, a collaborative custody technique that involves privileged participants (delegatee) withholding BIP32 chain codes at key setup time from a delegator,...
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parked my photos in an internet cul-de-sac. quiet, yet a bit wordy. like a good ol' blogspot page without the background music come see:
photos.jurv.is
Photos with just enough story to remember how they were made.
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Jurvis Tan (@jurvistan) posted to Delving Bitcoin about research he performed with Jesse Posner (@jesseposner) into improving the privacy and security of multisig collaborative custody... https://t.co/ILp56oU2Xf
bitcoinops.org
This week’s newsletter summarizes a vulnerability affecting old versions of LND, describes an idea for improving privacy when using co-signer services, and examines the impact of switching to...
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In recent months, @jesseposner and I have been developing an idea where collaborative custodians sign transactions via scalar tweaks, so they never have to hold an XPUB and limit what they learn about your wallet. It’s called Chain Code Delegation:
delvingbitcoin.org
Hi all, Over the past several months, @jesseposner and I have been exploring a new approach to collaborative custody called Chain Code Delegation. By withholding BIP-32 chain codes and sharing only...
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