Which MaptoCurve used for BN254

[nelsonijih]

We're planning to use Dirk KMS(which uses this crypto library) for Operator remote BLS signing for BN254 curve.

What is the map to curve algorithm this library support for BN254?

Currently, some AVSs are using the "try and increment" algorithm for mapping to curve as described/written in the code link below
https://github.com/Layr-Labs/eigensdk-go/blob/dev/crypto/bn254/utils.go#L36

If the library does not support it, any guidance on how to quickly add it? if it supports it, how do we enable it?

[herumi]

You can use mcl::ec::tryAndIncMapTo.
I don't know the specification of SetBytes in the original code; I expect that setBigEndianMod corresponds to it.

using namespace mcl;
using namespace mcl::bn;
Fp t;
t.setBigEndianMod(digest);
G1 P;
mcl::ec::tryAndIncMapTo(P, t);

But the sign of P.y is not fixed either. Fp::neg(P.y, P.y) would be needed to match the ModSqrt specification in the original code.