Use Case 2.1 Setup a remote PIN and biometric unlock

Overview

Aspect	Description
Summary	The user chooses and confirms a secure 6-digit remote Personal Identification Number (PIN) for the app, enables biometric unlock if supported and desired, and receives a notification code.
Goal	Securing the App with PIN and optionally biometrics and receive a revocation code.
Preconditions	None
Postconditions	Remote PIN is configured. If selected, biometric unlock is configured.
Triggered by	User completes UC1.1 Introduce the app
Additional Documentation	Wallet creation
Possible errors	None
Logical Test Cases	LTC51 Setup PIN LTC52 Setup PIN fails device does not pass app and key attestation LTC58 Skip setting up biometrics LTC59 Device does not support biometrics LTC70 Receive revocation code /ul>

---

Flow

#	Description	Next
1	PRIMARY SCENARIO
1.1	System executes partial flow PF2.9 Setup PIN
1.1a	Result: PIN setup succeeds	1.2
1.1b	Result: Back	Back
1.2	System determines whether device supports biometrics Duration: 0.0 - 0.1 seconds
1.2a	Case: Device supports biometrics	1.7
1.2b	Case: Device does not support biometrics	1.9
1.3	System displays screen ‘Configure Biometrics’ Message: Do you want to unlock the app with Face ID/Fingerprint? Actions: Enable, Skip, Info
1.3a	User selects Enable	1.9
1.3b	User selects Skip	1.9
1.3c	User selects Info	Go to: UC9.2 Get app information
1.4	Operating system prompts user for biometric authentication
1.4a	User confirms with biometric authentication	1.9
1.4b	User rejects biometric authentication	1.7
1.5	System displays screen ‘Confirm PIN/biometric setup’ Message: Your NL Wallet is secured Actions: Next
1.5a	User selects Next	1.6
1.6	System displays screen ‘Write down deletion code’ Message: You use this code to delete your NL Wallet from a distance. Actions: I have written it down, Help
1.6a	User selects I have written it down	Go to: UC3.1 Obtain PID
1.6b	User selects Help	Show placeholder ‘under construction’