chore: rename service folders to lowercase

frontend/server/utils/password.ts

@@ -0,0 +1,29 @@
+import { randomBytes, scryptSync, timingSafeEqual } from "node:crypto";
+
+const SCRYPT_KEY_LENGTH = 64;
+
+export function normalizePhone(raw: string) {
+  const trimmed = (raw ?? "").trim();
+  if (!trimmed) return "";
+  const hasPlus = trimmed.startsWith("+");
+  const digits = trimmed.replace(/\D/g, "");
+  if (!digits) return "";
+  return `${hasPlus ? "+" : ""}${digits}`;
+}
+
+export function hashPassword(password: string) {
+  const salt = randomBytes(16).toString("base64url");
+  const digest = scryptSync(password, salt, SCRYPT_KEY_LENGTH).toString("base64url");
+  return `scrypt$${salt}$${digest}`;
+}
+
+export function verifyPassword(password: string, encodedHash: string) {
+  const [algo, salt, digest] = (encodedHash ?? "").split("$");
+  if (algo !== "scrypt" || !salt || !digest) return false;
+
+  const actual = scryptSync(password, salt, SCRYPT_KEY_LENGTH);
+  const expected = Buffer.from(digest, "base64url");
+  if (actual.byteLength !== expected.byteLength) return false;
+
+  return timingSafeEqual(actual, expected);
+}