diff --git a/lib/utils/encrypt-decrypt.js b/lib/utils/encrypt-decrypt.js
index 0368171..772e6c9 100644
--- a/lib/utils/encrypt-decrypt.js
+++ b/lib/utils/encrypt-decrypt.js
@@ -50,18 +50,15 @@ function isObscureKey(bucketCredentials) {
       service_key = '',
       connection_string = ''
     } = bucketCredentials || {};
-    let pattern;
+    // Pattern matches: 4-6 any characters followed by one or more X's
+    const pattern = /^.{4,6}X+$/;
     switch (vendor) {
       case 'aws_s3':
       case 's3_compatible':
-        pattern = /^([A-Za-z0-9]{4,6}X+$)/;
         return pattern.test(secret_access_key);
       case 'azure':
-        pattern = /^([A-Za-z0-9:]{4,6}X+$)/;
         return pattern.test(connection_string);
-
       case 'google': {
-        pattern = /^([A-Za-z0-9]{4,6}X+$)/;
         let {private_key} = JSON.parse(service_key);
         const key_header = '-----BEGIN PRIVATE KEY-----\n';
         private_key = private_key.slice(key_header.length, private_key.length);