SAP PI 7.3: SFTP PGP module

Hi

I have installed the SFTP Adapter on my SAP PI7.3.  

    Updated the SLD with the latest CR content - now version 9.9

    Installed the PGP Module  using SAP SUM

    Installed the SFTP Adapter using SAP SUM

    Imported the SFTP Adapter ESR Content

I can now select the SFTP Adapter as a Communication Channel.

Now I want to use PGP.  But there does not appear to be a module to perform this duty.

Where would this be ?