Encryption – Usability support for visually impaired users
To enable visually impaired users to easily use an laptop once it has been encrypted you need to contact the Service Desk. We can make a change to the device configuration which will add the following audible notifications to the pre-boot authentication screen:
As the user tabs (or shift-tabs) between ontrols, the Pre-Boot will emit various beep sequences to indicate where they are. Other beep sequences will be used when an error is displayed, when password timeouts are displayed and when a logon is successful. Specifically, the sequences are:
Location or Event | Audible Sound Sequence |
Username Field | A single beep |
Password field | A double beep |
Change password checkbox | A double beep with a longer pause between each beep |
OK button | 3 beeps with a longer pause after the first beep |
Cancel button | 4 beeps with a longer pause after the first beep |
Token selection list | 4 beeps |
Error | 4 beeps with a longer pause after the first and third beep |
Password timeout | 5 beeps |
Logon Successful | 3 beeps |
Please note that no audible sounds are available for the local recovery function so a visually impaired user will need to contact the Service Desk in the event that they forget their password.
Last reviewed 22/12/14