Issue with Phase 2 of Power of Tau Ceremony for an EdDSA ECC Verification Circuit

[gokulsan]

Dear All, I was trying to implement an EdDSA Elliptic Curve Signature Verification using iden3 Circom and SnarkJS. I am getting around 5700+ constraints and hence my local machine is not able to complete the phase 2 of power of tau ceremony. Have you anyone faced similiar issues with power of tau ceremony.

[kuco23]

Did you find a solution? I have a similar issue with Merkle Proof checking that produces 180000 constraints and get the error circuit too big for this power of tau ceremony`.

[majunze2001]

You should increase the parameters when starting a new powers of tau ceremony.
snarkjs powersoftau new bn128 14 pot14_0000.ptau -v

The second parameter, in this case 14, is the power of two of the maximum number of constraints that the ceremony can accept: in this case, the number of constraints is 2 ^ 14 = 16,384. The maximum value supported here is 28, which means you can use snarkjs to securely generate zk-snark parameters for circuits with up to 2 ^ 28 (≈268 million) constraints.