Due to import control restrictions of some countries, the version of
the JCE policy files that are bundled in the Java Runtime Environment,
or JRE(TM), 7 environment allow “strong” but limited cryptography to be
used.
Download the jce for se version 7 and then place both the .jar files into
/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/lib/security/