ubuntu-phone team mailing list archive

[Tony Espy <espy@xxxxxxxxxxxxx>]

On 08/06/2013 10:05 AM, Michał Sawicz wrote:
> On 06.08.2013 15:28, Tony Espy wrote:
>> AFAIK, this was being done as part of the lock screen, as it's a
>> one-time "enter-at-boot" requirement.  Adding this as an indicator
>> function doesn't really make any sense.
> 
> Except when you swap SIMs while your phone is on. 

Hot-swapping SIMs is *not* supported for a variety of reasons.

> And anyay the "device
> passcode" entry needs to be very different (visually, too) from SIM PIN
> entry, so that you don't mistake one for the other (and lock yourself
> out / lock the SIM in the process).

I'm not a designer, so I will abstain from arguing this point.  That
said, there was a comprehensive design done for the lock screen which I
believe took this into consideration.

On Android, a small SIM icon is shown on the lock screen at boot in
addition to text that explains that a "SIM PIN" is required.

> I'm in favour of just treating the SIM PIN as any other credential and
> store it in the keyring, if the user so desired (only if the account is
> protected by a passcode / passphrase). Not sure that would be OK from
> the operators' standpoint, though.

I'm not sure the operator's care...

Android prompts for the SIM PIN before allowing the phone to be unlocked.

Has anyone looked at how iOS deals with SIM PINs?

Regards,
/tony