Decrypting attributes on-the-fly

[Scott Koranda]

> Sorry, I am a newbie to Shibboleth.  I do not understand what "plugin hook"
> is about and how the whole workflow can "attach" to it.

If you know or learn C++ then this tutorial on writing an access
control plugin for the Shibboleth SP may be helpful:

https://www.lsc-group.phys.uwm.edu/wiki/ShibSPAccessControlPluginTutorial

You do not need an access control plugin but the SP plugin mechanism
is the same regardless of the type of plugin.  The tutorial may help
with setting up your development environment.

Scott K