logos-execution-zone/sc_core/src/cryptography.rs

use light_poseidon::{Poseidon, PoseidonBytesHasher, parameters::bn254_x5};
use ark_bn254::Fr;
use ark_ff::{BigInteger, PrimeField};

fn poseidon_hash(inputs: &[&[u8]]) -> anyhow::Result<[u8; 32]>  {
    let mut poseidon = Poseidon::<Fr>::new_circom(2).unwrap();

    let hash = poseidon.hash_bytes_be(inputs)?;

    Ok(hash)
}