Install the free Bouncy Castle JCE Provider

Bouncy Castle is a free provider for JCE. These following steps will explain how to add this security provider.

  1. Download the latest release for your JDK version at
  2. Extract the zip file in your home directory
  3. BouncyCastle doens’t come with a JAR file. In order to add it to the bootclasspath, create one:
         c:jce-jdk12-107classes> jar cvf bouncycastle.jar *
         c:jce-jdk12-107classes> copy bouncycastle.jar c:jdk1.2.2jrelibext
  4. Go to your JAVA_HOME/jre/lib/security directory and edit the file Look at the configuration, in my case it says something like:

    Add the line security.provider.3=org.bouncycastle.jce.provider.BouncyCastleProvider

  5. Run one of the examples to see if it is working (eg. How do I crypt/decrypt a message with the Blowfish algorithm?)


This information is outdated. Now, you can download JAR versions for your JDK version.

For 1.3.1, I downloaded jce-jdk13-118.jar and bcprov-jdk13-118.jar and added them to my classpath (you can also put them in jdk1.3.1/jre/lib/ext and NOT add them to your classpath).

You can add a static provider to jdk1.3.1/jre/lib/security/ as described above or you can do this programmatically in your code:

... provider = new org.bouncycastle.jce.provider.BouncyCastleProvider();