Oracle Security Developer Tools Security tools are a critical component for any application development project. Commercial requirements and government regulations dictate that sensitive data be kept confidential and protected from being altered. Oracle Security Developer Tools (OSDT) provide you with the cryptographic building blocks necessary for basic tasks such as secure messaging to more complicated projects such as securely implementing a service-oriented architecture. OSDT is delivered as a set of Java libraries (JARs) that ship with Oracle Application Server and JDeveloper. OSDT is part of Oracle Platform Security Services (OPSS), which provides an abstraction layer in the form of standards-based application programming interfaces (APIs) that insulate developers from security and identity management implementation details.