add

[Tho09]poseidon-hash/README.md

@@ -34,7 +34,7 @@ Each such round consists of the following three sub-steps:
 ## Reference implementation for magic values
 Directory `reference/hadeshash` includes `generate_params_poseidong.sage` for generating values used inside poseidon hasher. We build values for BLS12-381's $F_q$ a.k.a Scalar Field. For this, use:
 
-```bash
+```sh
 # For generating for BLS12-381 Fq;
 # Modulus = `52435875175126190479447740508185965837690552500527637822603658699938581184513`
 # In Hex that is `0x73EDA753299D7D483339D80809A1D80553BDA402FFFE5BFEFFFFFFFF00000001`

[Tho09]poseidon-hash/reference/hadeshash/code/generate_params_poseidon.sage

@@ -6,7 +6,7 @@ if len(sys.argv) < 8:
     print("Usage: <script> <field> <s_box> <field_size> <num_cells> <alpha> <security_level> <modulus_hex>")
     print("field = 1 for GF(p)")
     print("s_box = 0 for x^alpha, s_box = 1 for x^(-1)")
-    exit()
+    exit() 
 
 # GF(p), n = 255, t = 3, alpha=5: sage generate_params_poseidon.sage 1 0 255 3 5 128 0x73eda753299d7d483339d80809a1d80553bda402fffe5bfeffffffff00000001
 # GF(p), n = 255, t = 5, alpha=5: sage generate_params_poseidon.sage 1 0 255 5 5 128 0x73eda753299d7d483339d80809a1d80553bda402fffe5bfeffffffff00000001

[Tho09]poseidon-hash/src/lib.rs

@@ -44,6 +44,11 @@ impl PoseidonHasher {
             })
     }
 
+    /// Applies MDS matrix to get a new state
+    fn apply_mds_matrix(&mut self) {
+
+    }
+
     pub fn hash(&self, input: Vec<Fr>) -> Fr {
         // We first have to chunk the input into groups of `T` size.