From 9d5c1ed9b6fa72b773609b0e63c457c2dba83146 Mon Sep 17 00:00:00 2001
From: Mike Mulchrone <mikemulchrone987@gmail.com>
Date: Sat, 10 Jan 2026 13:35:00 -0500
Subject: [PATCH] parameter hash for scrypt

---
 src/password_hashers/scrypt.rs | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/src/password_hashers/scrypt.rs b/src/password_hashers/scrypt.rs
index 94428ab..43af468 100644
--- a/src/password_hashers/scrypt.rs
+++ b/src/password_hashers/scrypt.rs
@@ -1,6 +1,26 @@
 use std::ffi::{c_char, CStr, CString};
 use cas_lib::password_hashers::{scrypt::CASScrypt};
 
+
+#[no_mangle]
+pub extern "C" fn scrypt_hash_with_parameters(
+    pass_to_hash: *const c_char,
+    cpu_memory_cost: u8,
+    block_size: u32,
+    parallelism: u32,
+) -> *mut c_char {
+    let string_pass = unsafe {
+        assert!(!pass_to_hash.is_null());
+
+        CStr::from_ptr(pass_to_hash)
+    }
+    .to_str()
+    .unwrap()
+    .to_string();
+    let new_hash = CASScrypt::hash_password_customized(string_pass, cpu_memory_cost, block_size, parallelism);
+    return CString::new(new_hash).unwrap().into_raw();
+}
+
 #[no_mangle]
 pub extern "C" fn scrypt_hash(pass_to_hash: *const c_char) -> *mut c_char {
     let string_pass = unsafe {