This is a text description of ano81015.gif, which describes how Oracle advanced security operates at the session layer on top of SSL, which uses TCP/IP at the transport layer. On top of the stack is the database application layer making calls into the Oracle call interface (OCI) and two-task common. The OCI then uses Net Manager for communicating with the database server over the network.

Net Manager is an abstraction layer where Oracle advanced security supports various encryption, authentication and integrity adapters. Below the Net Manager layer come the Oracle protocols layer and the network specific protocols layer. The SSL adapter is located at this layer and uses TCP/IP at the transport layer.