Zulu is a 100% open source build of OpenJDK, and is equivalent in features and performance with Oracle HotSpot. In rare cases, there is a variance between what is included in OpenJDK and Oracle’s proprietary JVM. Azul has developed optional add-on packages for Zulu that help resolve these issues. Note: while the Zulu Commercial Compatibility Kit and Cryptography Extension Kit are available for free download and redistribution, they may contain software that is not 100% open source.
Zulu Commercial Compatibility Kit (CCK)
The Commercial Compatibility Kit (CCK) for Zulu contains additional functionality that is not included in in the OpenJDK source, but which will help ensure compatibility in applications that take advantage of specific additional features that Oracle bundles into HotSpot. The CCK is free and can be added easily to Zulu as part of your normal upgrade or update process. Simply choose and download the CCK version that matches your operating system and Zulu installer type (for example zip or rpm). The CCK contains the Lucida font family from Monotype™. Note: incorporate the content of this page: http://www.azul.com/products/zulu/cck-downloads
Zulu Cryptography Extension Kit (CEK)
Download Zulu® and Zulu Enterprise Commercial Compatibility Kit
To make use of the CCK, first download Zulu, deploy on Linux, Windows, Mac and Cloud environments (as always) then choose your free or subscription-based (Zulu Enterprise) support options. Then choose the CCK version below that matches both your operating system and installer (this is very important). An online version of the Zulu documentation is available here (for all platforms) and Zulu Commercial Compatibility Kit documentation is available here.
Download Zulu® and Zulu Enterprise Cryptography Extension Kit
The Zulu Cryptography Extension Kit (“Zulu CEK”) provides pluggable policy JAR files to set the effective cryptographic level for the whole JDK/JRE. Zulu ships with strong (128 bit) encryption, the standard level for OpenJDK. The Zulu CEK provides an upgrade to ‘unlimited’ key sizes. The Zulu CEK consists of one file named ZuluJCEPolicies.zip and is independent of platform and Java level, so it can be applied to any Zulu installed set.
Some countries have import control restrictions on encryption strength. The version of the Zulu encryption policy files that are shipped standard with Zulu downloads is “strong” but key length is limited. This Zulu CEK downloadable add-on provides “unlimited strength” policies which contain no restrictions on cryptographic strength.
The Zulu CEK download file does not contain any encryption functionality by itself. All encryption providers and functionality for each Java level is already provided within Zulu’s regular JDK and JRE packages. You will need to have Zulu installed to deploy and use the Zulu CEK.
Your use of the Zulu CEK and its unlimited strength levels must adhere to your local laws, and you should seek
legal counsel to precisely determine your own regional laws and limits in effect.
License and Terms
This download is part of the Zulu product and is governed by same License and Terms notices. The license notice can be found on in the documentation included within the Zulu CEK download.
The Zulu product, its standard cryptography framework and included encryption functions, and the Zulu CEK, have been reviewed for general US export.
The OpenJDK architecture on which Zulu is based allows cryptographic strength to be configured through the use of policy files. Some countries restrict the import of cryptographic strengths above a certain level. The Zulu CEK policy files in this download extend cryptographic strength to an unlimited level. The 128-bit cipher length in regular OpenJDK exists by default to meet lowest common denominator import controls worldwide, since in certain countries 128-bit strength is the maximum allowed for import. Your use of the Zulu CEK and its unlimited strength levels must adhere to your local laws, and you should seek legal counsel to precisely determine your own regional laws and limits in effect.
Please consult your export/import control counsel or attorney to determine the exact requirements for your jurisdiction.
Now that you’ve downloaded the Zulu CEK, join the Zulu Community!