Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: unity8 (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1363214
Title:
[System Settings] [design] allow Passcodes of variable length instead
of just 4 digits
Status in Ubuntu UX bugs:
Triaged
Status in “ubuntu-system-settings” package in Ubuntu:
Confirmed
Status in “unity8” package in Ubuntu:
Confirmed
Bug description:
Currently when setting a Passcode on the device, it must be 4 digits.
This is artificially limiting. Other platforms (eg Android) allow
longer Passcodes. It has always been my understanding that we should
support Swipe, Passphrase and Passcode where Passphrase and Passcode
can be arbitrarily long.
However, once longer Passcodes are supported, we will have to add an
Enter key. Right now, the lockscreen checks the Passcode once 4 digits
are added so that you don't have to press Enter. I guess this was done
for usability, but would be a security issue because an attacker can
easily determine the Passcode length, which makes it easier to for an
attacker to guess the Passcode. Eg, if I have a 5 digit Passcode set,
then an attacker need only type '11111' and know that the Passcode is
only five characters. Now, a Passcode isn't strong to begin with and
an automated attack could rather quickly brute force Passcodes, but we
shouldn't make it easier for someone manually trying to guess the
Passcode.
The passphrase lockscreen prompt correctly allows variable length
passphrases and requires you to press Enter.
I suggest moving the 'X' up t the left of '0' and an Enter symbol to
the rigth of '0'.
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