Added warning about an empty key

diff --git a/src/Util/Crypto.php b/src/Util/Crypto.php
index 2ab97e5..54c3049 100644 (file)
--- a/src/Util/Crypto.php
+++ b/src/Util/Crypto.php
@@ -24,6 +24,9 @@ class Crypto
         */
        public static function rsaSign($data, $key, $alg = 'sha256')
        {
+               if (empty($key)) {
+                       logger::warning('Empty key parameter', ['callstack' => System::callstack()]);
+               }
                openssl_sign($data, $sig, $key, (($alg == 'sha1') ? OPENSSL_ALGO_SHA1 : $alg));
                return $sig;
        }
@@ -37,6 +40,9 @@ class Crypto
         */
        public static function rsaVerify($data, $sig, $key, $alg = 'sha256')
        {
+               if (empty($key)) {
+                       logger::warning('Empty key parameter', ['callstack' => System::callstack()]);
+               }
                return openssl_verify($data, $sig, $key, (($alg == 'sha1') ? OPENSSL_ALGO_SHA1 : $alg));
        }