PassGo Lock Screen

PassGo is an open source project available at https://github.com/3d-passgo

You like the pattern password but need more security than that? Try PassGo, the coolest Graphical Password with the unprecedented security!

PassGo, derived from Go (an accent Chinese board game), is widely believed to be the prototype of the Google Pattern Lock and to become the next generation password. In PassGo, a user draws lines and dots on a grid by touching the intersections as a password. According to the result of the scientific computation, the password space of PassGo is 256 bits, which is astronomical and is far more than enough to protect any mission critical data.

"PassGo Lock Screen" can lock not only system screen, but also individual Apps. You can fine-tune the security of your lock screen by adjusting the grid size, from 1x1 to 19x19. The color/style/background of PassGo can be easily customized to your own preference in a way of "you see what you get".


* In case you like this APP and would like to help translate it to your own language, please email us.



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FAQ
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* Why should I disable System Lock?
Disabling System Lock will avoid double locking. This is optional though.

* Screen does not lock, what is wrong?
Usually this is due to the setting of Lock Screen Timeout or the Lock Screen Service is not running. Try to turn on the Lock Screen Service. If the problem still exists, feel free to send an email to our support team passgosz@gmail.com.

* What is the "Lock Screen Timeout"?
"Lock Screen Timeout" is the wait time between screen is off and screen is actually locked. For example, if "Immediately" is chosen, then the screen will be locked instantly after it is turned off (due to either display timeout or power key is pressed); if "Two Minutes" is chosen, then screen will be locked two minutes after screen is off.

* Do I have to draw PassGo in exactly the same way as how I set up?
Yes. PassGo requires to be drawn in EXACTLY the same way as how it is set up. For example, if you click an intersection twice when you set up PassGo, then you must click the same intersection twice when you login, even though you only see one dot on the grid (the other dot is overlapped in this case).

* How do I draw a dot?
To draw a dot, touch an intersection on the grid and then lift your finger.

* How do I draw a line?
To draw a line, touch multiple intersections continuously and then lift your finger.