Jarsigner is a tool provided with the Java Development Kit (JDK) to digitally sign Java files with the following extensions.

• .ear
• .jar
• .sar
• .war

See below for how to sign these files with Jarsigner and the keys managed by the Entrust Signing Automation service. 

To sign JAVA files with Jarsigner  

1. Configure a service subscription as explained in Managing tokens with Entrust Certificate Services cloud.
2. On your computer, install:
   • The Signing Automation Client, as explained in Downloading the Signing Automation Client.
   • The latest Java Development Kit (JDK) available at https://www.oracle.com/java/technologies/downloads
3. Follow the steps described below. 
   • Configuring Jarsigner
   • Running Jarsigner