Made a Secp256r1/p256 EC verifier Huff implementation. This was inspired by @daimo implementation and passes their unit tests. In comparison to theirs, this implementation costs approximately 90k gas less (~ 240k gas) to verify a p256 sig.

Your own bank, on ethereum
https://github.com/daimo-eth/daimo

Made a Secp256r1/p256 EC verifier Huff implementation. This was inspired by @daimo implementation and passes their unit tests. In comparison to theirs, this implementation costs approximately 90k gas less (~ 240k gas) to verify a p256 sig.

https://github.com/AmadiMichael/p256-verifier-huff

The original implementation by @nibnalin.eth and @dcposch.eth can be found here

Real World Ethereum 🌎 
building /daimo ✳️ 

Protocol Engineer @ OP Labs | https://amadimichael.github.io | Prev: @rareskills

The original implementation by @nibnalin.eth and @dcposch.eth can be found here https://github.com/daimo-eth/p256-verifier

This was also inspired by @pcaversaccio's vyper implementation 👇

𝐖𝐨𝐫𝐤𝐢𝐧𝐠 𝐨𝐧 𝐰𝐡𝐚𝐭'𝐬 𝐧𝐞𝐱𝐭.

https://github.com/pcaversaccio

This is now deployed on Eth-Goerli, Eth-Sepolia, Base-Goerli and Base-Sepolia testnets at address 0x00000083Ea3aBb243c4acfDB095DB5aD5A606fc5

Also has a custom lib that huff contracts can use to interact with it and verify sigs while choosing if to support malleability or not

https://warpcast.com/michaels/0x51e39e31

Now deployed!
https://warpcast.com/michaels/0xf13d053e

This was also inspired by @pcaversaccio's vyper implementation 👇

https://github.com/pcaversaccio/p256-verifier-vyper