From a0a3b98c997944abeb8edb7adc5157bf0188c1eb Mon Sep 17 00:00:00 2001
From: sacOO7 <sachinshinde7676@gmail.com>
Date: Mon, 29 Apr 2024 21:35:39 +0530
Subject: [PATCH] Fixed empty string encryption using openSSL crypto

---
 lib/ably/util/crypto.rb | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/ably/util/crypto.rb b/lib/ably/util/crypto.rb
index 3635b59a5..7707af93e 100644
--- a/lib/ably/util/crypto.rb
+++ b/lib/ably/util/crypto.rb
@@ -83,8 +83,8 @@ def encrypt(payload, encrypt_options = {})
       cipher.key = key
       iv = encrypt_options[:iv] || fixed_iv || cipher.random_iv
       cipher.iv = iv
-
-      iv << cipher.update(payload) << cipher.final
+      iv << cipher.update(payload) unless payload.empty?
+      iv << cipher.final
     end
 
     # Decrypt payload using configured Cipher