FCluster by stages of assurance
FCluster has 4 ‘zones’ of assurance as shown in Fig. 7. We now step through then in more detail.
Acquisition assurance
The first assurance in the system is one of the “Loops of Authority and Acknowledgement” type in which authority is granted to an imaging device to take an image and then FCluster only accepts data that was gathered with that
authority Fig. 6. The FCluster administrator generates an ‘Authority to image’ in the form of a file which will be issued to a specific device. This file contains a reference number and a randomly generated key which will be used at acquisition time to encrypt the data stored in the SIPs. The reference