Additional libraries needed for strong encryption

To take advantage of all encryption ciphers you may need to install the JCE Unlimited Strength Jurisdiction Policy Files distributed by Oracle.  Due to export restriction the version of the policy files bundled by default with the JDK allow "strong" but limited cryptography to be used.  The "unlimited strength" policy files contain no restrictions on the cryptographic strengths.

Download Unlimited Strength Jurisdiction Policy Files

http://www.oracle.com/technetwork/java/javase/downloads/jce-6-download-429243.html  (JVM 1.6)

http://www.oracle.com/technetwork/java/javase/downloads/jce-7-download-432124.html  (JVM 1.7)

Installation

1.  Identify the location of the JVM/JDK you are using.

Example

c:\program files\java\jre

2. Extract the contents of the Unlimited Strength Jurisdiction Policy Files to a temporary directory.

3. Copy the local_policy.jar and US_export_policy.jar files extracted in the previous step to the lib\security directory of your JRE making sure to backup previous versions of these jar files should you decide to revert back to the previous installation.  

Example

c:\program files\java\jre\lib\security