Added method signTimedMessage() and verifyTimedMessage() for verifying messages based on signed timestamps

src/Socialbox/Enums/Status/SignatureVerificationStatus.php

@@ -0,0 +1,21 @@
+<?php
+
+    namespace Socialbox\Enums\Status;
+
+    enum SignatureVerificationStatus : string
+    {
+        /**
+         * The provided signature does not match the expected signature.
+         */
+        case INVALID = 'INVALID';
+
+        /**
+         * The provided signature was valid but the key associated with the signature has expired.
+         */
+        case EXPIRED = 'EXPIRED';
+
+        /**
+         * The provided signature was valid but unable to be verified against the peer's known public key.
+         */
+        case UNVERIFIED = 'UNVERIFIED';
+    }