A place for developers to talk about building on Farcaster.

/dev

Just bought a YubiKey 5C. Going to see if I can natively sign an Ethereum transaction using a secp256k1 key from the new iPhone 15's USB-C port.

Does it actually support that curve?

I can’t seem to find anything anywhere that says it does.

Working on building zkTLS infra/products. A ruthless empiricist and meme connoisseur.

/opacity
/eulerlagrange

Ah, can’t believe google didn’t find that.

It should be straightforward to get it to generate a ECDSA signature, but you have to manipulate the signature to make sure it’s Ethereum compliant.

Ah, can’t believe google didn’t find that.

It should be straightforward to get it to generate a ECDSA signature, but you have to manipulate the signature to make sure it’s Ethereum compliant.

https://github.com/ethereum/EIPs/blob/4708c612b4784ec1ed9f419aeb07454ccfa30b4e/EIPS/eip-2.md?plain=1#L28

Yes. https://support.yubico.com/hc/en-us/articles/360016649139-YubiKey-5-2-Enhancements-to-OpenPGP-3-4-Support