fix: Fixes type Field cannot be used in for loop error

README.md

@@ -13,10 +13,15 @@ Before you can use this implementation, ensure you have the Noir language and it
 Once you have Noir set up, clone this repository to your local machine:
 
 ```bash
-git clone https://github.com/yourusername/mimc-sponge-noir.git
+git clone https://github.com/KumaCrypto/mimc_sponge_noir.git
 cd mimc-sponge-noir
 ```
 
+To import this as a dependency in your noir project, please add this to your nargo`[dependencies]`. Replace the tag with the version you wish to use.
+```
+mimc_sponge = { tag = "v0.0.2", git = "https://github.com/KumaCrypto/mimc_sponge_noir" }
+```
+
 ## Disclaimer
 
 This `MiMC Sponge` hash function implementation is provided as-is without any warranty. It has not been audited and is not guaranteed to be secure. It is intended for educational and research purposes only. Users should conduct their own due diligence and risk assessment before deploying it in production environments or for high-stakes applications.

src/lib.nr

@@ -6,9 +6,9 @@ use constants::get_c_partial;
 
 // log_5(21888242871839275222246405745257275088548364400416034343698204186575808495617) ~= 110
 // => nRounds should be 220
-global nRounds: Field = 220;
+global nRounds: u64 = 220;
 
-pub fn mimc_sponge<N, M>(ins: [Field; N], k: Field) -> [Field; M] {
+pub fn mimc_sponge<let N: u32, let M: u32>(ins: [Field; N], k: Field) -> [Field; M] {
     let mut S = MiMCFeistel(ins[0], 0, k); // First round with xL = ins[0] and xR = 0
 
     for i in 1..N {