Page 30 - Implementation of Secure Authentication Technologies for Digital Financial Services

Figure 17 – is the message flow of the deregistration protocol:

Figure 17 – IFAA biometric authentication – local model – Deregistration

User IFAA Credential Biometrics Application IFAA Authentication
User IFAA Client
Application manager system Server Server
1. User initiates 2. User deregistration request
deregistration
3. User deregistration
request
4. Delete user
registration
record and auth
5. User credential
deregistration
6. User deregistration
7. User
deregistration
8. User
deregistration
9. Delete user
registration
and auth
credential
10. Return
deregistration result
11. Return
deregistration result
12. Return deregistration result

6.4.2 IFAA Biometric Authentication - Remote Model
In the remote model, the biometrics system is divid- collected locally but not stored or compared locally,
ed into two parts: the biometrics collection module instead they are sent to the server side by the user
resides in the user equipment, but the biometrics application and verified by the biometrics system in
storage module and comparison module reside in the authentication server. Figure 18 is the technical
the authentication server. The biometric data are framework of this model.

28 Implementation of Secure Authentication Technologies for Digital Financial Services