Two elliptic curve standards:
- secp256k1 is used by Bitcoin and Ethereum
- secp256r1, aka P-256, is used everywhere else. Passkeys, the Secure Enclave, iCloud Keychain, Yubikey, ...

If you can verify P-256 signatures onchain, you can make a *much* nicer self-custody experience.

Safe, fast, no seed phrase.

We just shipped an open-source P-256 verifier, audited by Veridise. Huge props to @nibnalin.eth. Details below.

It's a key part of Daimo--more on that soon--and we hope it's useful to lots of other projects, too.

Real World Ethereum 🌎 
building /daimo ✳️ 

We just shipped an open-source P-256 verifier, audited by Veridise. Huge props to @nibnalin.eth. Details below.

It's a key part of Daimo--more on that soon--and we hope it's useful to lots of other projects, too.

https://daimo.xyz/blog/p256verifier

It's also a drop-in replacement for the EIP-7212 precompile (shoutout @0xulas.eth and @doganeth) for chains which don't have the precompile yet.

Researcher at Clave and
Co author of EIP-7212 

It's also a drop-in replacement for the EIP-7212 precompile (shoutout @ulas and @doganeth) for chains which don't have the precompile yet.

https://eips.ethereum.org/EIPS/eip-7212