Java Security-Related Tools
The keytool is used to create pairs of public and private keys, to import and display certificate chains, to export certificates, and to generate X.509 v1 self-signed certificates and certificate requests that can be sent to a certification authority.
The jarsigner tool signs JAR (Java ARchive format) files and verifies the authenticity of the signature(s) of signed JAR files.
The Policy Tool creates and modifies the policy configuration files that define your installation's security policy. The Policy Tool has a graphical user interface to define policies.