diff --git a/src/pbkdf.ts b/src/pbkdf.ts
index c5cfbc8..f8a5330 100644
--- a/src/pbkdf.ts
+++ b/src/pbkdf.ts
@@ -1,6 +1,11 @@
 import logger from 'log'
 
 const log = logger('crypto:pbkdf')
+export const PBKDF_parameters = {
+    name: "PBKDF2",
+    iterations: 250_000,
+    hash: "SHA-512",
+}
 
 export async function pbkdf(password: string, salt: Uint8Array, usages: KeyUsage[]): Promise<CryptoKey> {
     log.trace('derive')
@@ -16,9 +21,7 @@ export async function pbkdf(password: string, salt: Uint8Array, usages: KeyUsage
 
     return crypto.subtle.deriveKey(
         {
-            name: "PBKDF2",
-            iterations: 250_000,
-            hash: "SHA-512",
+            ...PBKDF_parameters,
             salt,
         },
         keyMaterial,