Install the Java Cryptography Extension (JCE) If you want to use AES 256 encryption, you must install the Java Cryptography Extension (JCE) jurisdiction policy files and copy them into each Edge Encryption proxy. About this task Edge Encryption ships with the AES 128 policy files, which you must overwrite with the AES 256 policy files. It is only necessary to download the JCE once, but every Edge Encryption proxy must be updated. Procedure Download the JCE policy 8 ZIP file from Oracle. Unzip the file. On each proxy server, copy the local_policy.jar and US_export_policy.jar files into the <proxy-dir>/java/jre/lib/security folder.