This text is copied out of the Helio internal wiki. The “CIS” is the Community Identity Service, and acts as a source of cryptographic identity tokens.
Related Documentation
Some links (still to be completed) to proxy certificates, robot proxy certificates and their policies.
Approved Robots
Private Key Protection
An example with the Genius portal
On VOMS
Description and Use Cases
The overall description of the security infrastructure of HELIO is described in the document of Processing and Storage. Nevertheless, the following lines describe the security architecture.

First Prototype
The CIS will return a robot proxy certificate for the standard, undefined user.