renames and tauri app

core/src/crypto/hkdf.rs

@@ -0,0 +1,22 @@
+use hkdf::Hkdf;
+use sha2::Sha256;
+
+pub struct HKDF;
+
+impl HKDF {
+    pub fn extract_key(salt: &[u8], ikm: &[u8]) -> Hkdf<Sha256> {
+        let extracted_key = Hkdf::<Sha256>::new(Some(salt), ikm);
+        extracted_key
+    }
+
+    pub fn expand_key<const N: usize>(
+        extracted_key: &Hkdf<Sha256>,
+        mark: &[u8],
+    ) -> Result<[u8; N], String> {
+        let mut expanded_key: [u8; N] = [0u8; N];
+        extracted_key
+            .expand(mark, &mut expanded_key)
+            .map_err(|e| e.to_string())?;
+        Ok(expanded_key)
+    }
+}