L5 - Data P r otection Se r vices
L4 - A pplications and Middlewa r e
L6 - Network and API Security
L7 - K e y and T rust Management
L1 - Platform OS and P olicy
L2 - V alidated C r yp t o P r o viders
L3 - E x ecution Envi r onment
L0 - Ha r dwa r e C r yp t o Bounda r y
Legend:
The sou r ce calls the destination
Host/Enfo r ce/O r chest r ate L2