#### 11.2.2 SSLIOP

The SSLIOP protocol provides transport layer security for transmitted requests. Its provides encryption of GIOP requests.

To build the SSLIOP, it is required to activate SSL-related features when building PolyORB. See `--with-openssl` in Installation for more details.

Enabling security is completely transparent to a preexisting application, it is also possible to phase in secure communications by allowing incoming requests which are unsecured.