diff --git a/tests/Unit/CryptoTest.php b/tests/Unit/CryptoTest.php
new file mode 100644
index 000000000..15ecac713
--- /dev/null
+++ b/tests/Unit/CryptoTest.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace Tests\Unit;
+
+use Tests\TestCase;
+use Illuminate\Foundation\Testing\WithFaker;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+
+class CryptoTest extends TestCase
+{
+    /**
+     * A basic test to check if PHPSecLib is installed.
+     *
+     * @return void
+     */
+    public function testLibraryInstalled()
+    {
+        $this->assertTrue(class_exists('\phpseclib\Crypt\RSA'));
+    }
+
+    public function testRSASigning()
+    {
+        $rsa = new \phpseclib\Crypt\RSA();
+        extract($rsa->createKey());
+        $rsa->loadKey($privatekey);
+        $plaintext = 'pixelfed rsa test';
+        $signature = $rsa->sign($plaintext);
+        $rsa->loadKey($publickey);
+        $this->assertTrue($rsa->verify($plaintext, $signature));
+    }
+}