bnb-chain / tss-lib

Threshold Signature Scheme, for ECDSA and EDDSA
MIT License
790 stars 271 forks source link

Can I use the same preparams to generate multiple keys? #145

Open majecty opened 3 years ago

majecty commented 3 years ago

I want to generate multiple keys in the same group. Regenerating pre-parameters every time requires too much time.

Is it safe to reuse the pre-parameters?

yycen commented 3 years ago

Do you mean child key derivation that keygen once and can later derive child keys? This feature in not in master branch now, you can chek this for usage.

yycen commented 3 years ago

Yes, for N, h1, h2, you can use for another keygen, for the same set of parties.

majecty commented 3 years ago

@yycen Sorry for rate response. Thanks for your answer! It really helps me.