[bitcoin-dev] BIP proposal: Elliptic SSS scheme

[bitcoin-dev] BIP proposal: Elliptic SSS scheme

[Egor Zuev]

[-- Attachment #1.1: Type: text/plain, Size: 674 bytes --]

Hi everyone!

Would like to propose the solution for sharing the private key / other
sensitive information with a modified SSS scheme.

The key features are:
1) the secret restoration is not possible without corresponding signatures
2) share[i] belongs to privateKey[i] only, which means it can't be signed
with a different private key

I hope this approach can help on the application level to share sensitive
information or it can be used as m-of-n multi-signature (this is
discussable). I've attached the pdf file with the concept description. Also
here is the repo with a working example in node.js:
https://github.com/ega-forever/esss

Thanks in advance for your time.

[-- Attachment #1.2: Type: text/html, Size: 891 bytes --]

[-- Attachment #2: musig-esss.v1.pdf --]
[-- Type: application/pdf, Size: 207167 bytes --]