Can I use PubNub with AES? Craig Conover November 10, 2020 11:24 Updated You can encrypt messages published via PubNub using AES-256. Applying AES-256 encryption to the contents of all published messages only requires supplying a value to the cipher key parameter. For more information, check Connection & Message encryption Related articles Can I Use PubNub with SSL (HTTPS)? Is the cipher key used for SSL? Can I whitelist IPs for PubNub traffic?