Using BLS12-381 curve to generate groth16 solidity verifier results in out of range error in solidity
madhav-madhusoodanan opened this issue · comments
Madhav Madhusoodanan commented
Hi
Thank you so much for creating and maintaining this project.
I would like to point out that the verification key data values (alphas, betas, gammas, deltas) in solidity have a value which is outside the range of the uint256 data type when groth16 verification system on the bls12-381 curve is used.
I'm attaching an example solidity verifier with this issue for reference: verify.sol
Do let me know how I can help with sorting this issue.
Thank you so much.
Madhav Madhusoodanan commented
Would it be suggestible to use a Solidity Big-Integer library for handling such numbers?
For example, the solidity-BigNumber library (however it has not been audited properly)