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Touchatag tags are standard issue NFC tags that cannot be overwritten, read more
Login to Windows / Unlock / Lock screen
My killer app would be a 2-tag system for controlling access to my PC.
First swipe - logs me into my PC if it's not logged in; or unlocks the screen saver if it's locked
Second swipe - if it's logged in - lock the screen
I then attach it to the back of my ID card. On arrival at the office, one swipe logs me in, then at lunch time, a second swipe locks the system, so I can go to lunch without worrying that my system will be hacked.
I've seen suspend, and shut-down apps, but none for doing a windows system login action.
Is this possible?
Unlocking vs. Login
I think unlocking could be feasible just by writing the credential provider. For login, I think the tikitag client has to be rewritten as a system service, otherwise it will not be available during the login process.
But I am no Windows developer, so perhaps there are simpler ways.
lock works
Locking your PC works:
create a shortcut "lock.lnk" that links to :
%windir%\System32\rundll32.exe user32.dll, LockWorkStation
and save it e.g. in your C: drive
Then make a Web Link application with as URl file:///C:/lock.lnk
Unlocking is probably not so easy. Anyone?
If you solve the unlock
If you solve the unlock scenario in a similar way as lock.lnk you should be able to use only one tag - using the web wheel app. first activation locks, second unlocks.
Unlocking - I'd like to see it too!
Thinkpad T60p laptops have a fingerprint reader that has been used in Windows & Linux(http://r4vi.org/index.html/?q=node/73) for login.
I'd be interested in a tikitag Windows unlock implementation for Vista and/or XP if anyone cares to give it away.
Unlocking
The easiest way to unlock vista/xp would be to write a custom credential provider which uses the tikitag as a login method.
Have a look at the code in http://www.microsoft.com/downloads/thankyou.aspx?familyId=1287ec56-77b4-... if you want to write a simple app that the tikitag could launch or that could hook into the tikitag.
Thanks!
mitch
Working on it
I am working on the credential provider, however, it might take a while to integrate it as a website instead of a file (being that not everyone is going to have the file on their computer). Anyone in the process and have tried it yet?
It would be nice to use it as a login method and just put the tag on the back of my drivers license :P big brother meets government authorized.