The capability of using symmetric encryption was introduced by the Carbon 4.4.3 version. Therefore, note that this feature does not apply to products that were released prior to Carbon 4.4.3.
WSO2 Carbon-based products use asymmetric encryption by default as explained in the previous section. From Carbon 4.4.3 onwards, you have the option of switching to symmetric encryption in your WSO2 product. Using symmetric encryption means that a single key will be shared for encryption and decryption of information.