I have implemented transaction signing in Oracle application using digital certificates. Created a java bean to access windows default keystore (SunMSCAPI) to get all certificates and populate them in oracle forms application, Signing oracle forms...
Offers a complete structure of security for Spring-based projects. It turns any bean in a protected resource. It uses a non invasive approach, and once you create a security policy it makes the bean a PEP (Policy Enforcement Point).