crypto dn added

sc_core/src/cryptography.rs

@@ -0,0 +1,11 @@
+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)
+}

sc_core/src/lib.rs

@@ -1,3 +1,4 @@
 pub mod proofs_circuits;
 pub mod transaction_payloads_tools;
 pub mod utxo_manipulator;
+pub mod cryptography;