first init

server/dist/utils/crypto.d.ts

@@ -0,0 +1,12 @@
+/**
+ * Generate a cryptographically secure random string for authorization keys.
+ */
+export declare function generateSecureKey(length?: number): string;
+/**
+ * Hash a plain text key with SHA-256 for secure database storage.
+ */
+export declare function hashKey(key: string): string;
+/**
+ * Constant-time hash verification to prevent timing attacks.
+ */
+export declare function verifyKeyHash(key: string, storedHash: string): boolean;