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Author Topic: Protect your TI-Nspire startup with ZLock  (Read 16518 times)

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Offline critor

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Protect your TI-Nspire startup with ZLock
« on: February 14, 2012, 06:39:49 am »
Do you want to keep your secrets in your Nspire? Why not adding a boot password to it?



It's now possible with ZLock from Levak.

ZLock makes use of the latest Ndless 3.1 feature and adds a password on boot. Note that it doesn't protect your Nspire if it is just turned off then on - only when it's (re)booting.



ZLock uses a hidden config file which cannot be altered or removed with the OS. And if anybody tries to brute-force your password, they will get an additional 10s delay after three wrong tries.



Download today, and be sure to read the ReadMe! ;)
http://tiplanet.org/forum/archives_voir.php?id=3959


Cross-posted from TI-Planet: http://tiplanet.org/forum/viewtopic.php?f=43&t=8786
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Offline jwalker

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Re: Protect your TI-Nspire startup with ZLock
« Reply #1 on: February 14, 2012, 07:50:31 am »
wow, this might be nice to have...
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Re: Protect your TI-Nspire startup with ZLock
« Reply #2 on: February 14, 2012, 08:06:28 am »
Yeah, that could be pretty useful.
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Offline DJ Omnimaga

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Re: Protect your TI-Nspire startup with ZLock
« Reply #3 on: February 14, 2012, 02:38:56 pm »
Nice. :D The only problem I forsee though is many people forgetting their password and locking themselves down from their calc. This happened many times in the past when MirageOS was at its peak of popularity and people were using its password feature to prevent teachers or bad "friends" from clearing their RAM. <_<

In the worst case scenario, are there any way for someone forgetting his password to unlock his calc, or does it remain locked down forever?
« Last Edit: February 14, 2012, 02:39:37 pm by DJ_O »
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Offline apcalc

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Re: Protect your TI-Nspire startup with ZLock
« Reply #4 on: February 14, 2012, 03:00:31 pm »
Awesome!  This could be quite handy! :)
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Offline critor

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Re: Protect your TI-Nspire startup with ZLock
« Reply #5 on: February 14, 2012, 06:58:44 pm »
Quote from: DJ_O on February 14, 2012, 02:38:56 pm
In the worst case scenario, are there any way for someone forgetting his password to unlock his calc, or does it remain locked down forever?

Yes: maintenance menu -> complete reformat -> reinstall OS
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Offline DJ Omnimaga

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Re: Protect your TI-Nspire startup with ZLock
« Reply #6 on: February 14, 2012, 10:31:53 pm »
Ok good to hear lol.
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Offline DrDnar

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Re: Protect your TI-Nspire startup with ZLock
« Reply #7 on: February 15, 2012, 08:28:11 am »
Pff, TI thinks nothing of storing the Push-to-Test mode information in the normally-unerasable certificate; why not make an unerasable password?
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Offline Cuervo

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Re: Protect your TI-Nspire startup with ZLock
« Reply #8 on: February 15, 2012, 08:41:24 am »
Quote from: critor on February 14, 2012, 06:58:44 pm
Quote from: DJ_O on February 14, 2012, 02:38:56 pm
In the worst case scenario, are there any way for someone forgetting his password to unlock his calc, or does it remain locked down forever?
Yes: maintenance menu -> complete reformat -> reinstall OS

Actually, it's way easier^^
Quote
Any native program stored in the folder ‘ndless/startup/’  and its subfolders will be run at OS boot time sequently in alphabetical order. You have to create the ‘startup/’ directory manually. Maintaining the ESC key pressed during startup (when the progress bar is almost done) skips these programs – this is useful when a buggy program has been stored in the startup folder.
(See http://ndlessly.wordpress.com/ndless-user-guide/)

And even if that does not work you can simply delete the OS with the mainteance menu, delete ZLock with the Link Software or TILP and then reinstall the OS, as file system access through USB is still possible when an OS is not installed, so you can keep all your documents. :)
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Offline hellninjas

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Re: Protect your TI-Nspire startup with ZLock
« Reply #9 on: February 15, 2012, 03:29:19 pm »
This will be really helpful for getting others AWAY FROM MY FREAGIN NSPIRE!
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Offline Jim Bauwens

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Re: Protect your TI-Nspire startup with ZLock
« Reply #10 on: February 15, 2012, 04:36:04 pm »
You should add a function which turns the nspire fully off, so that you don't need to wait a couple of days :D
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Offline DJ Omnimaga

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Re: Protect your TI-Nspire startup with ZLock
« Reply #11 on: February 16, 2012, 12:01:27 am »
Am I the only one who thinks everyone here will choose THEGAME as password? <_<
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Offline Aequilipse

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Re: Protect your TI-Nspire startup with ZLock
« Reply #12 on: February 17, 2012, 12:08:57 am »
Can somebody make a tutorial on how to install this? Do you drag the folder into My Documents/ndless/startup?
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Offline Levak

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Re: Protect your TI-Nspire startup with ZLock
« Reply #13 on: March 09, 2012, 06:00:31 am »
Quote from: Aequilipse on February 17, 2012, 12:08:57 am
Can somebody make a tutorial on how to install this? Do you drag the folder into My Documents/ndless/startup?
Yes, and launch it once to setup as detailed in the ReadMe.
If you want to uninstall if, as the ReadMe says, rename it to uninstall.
This can be done from Nspire Computer Software IIRC, or just remove the hidden config file : config.zlock

And if you can't, just press Esc or On (can't remember) to avoid Ndless startup launch.
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Offline Levak

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Re: Protect your TI-Nspire startup with ZLock
« Reply #14 on: March 12, 2012, 06:52:09 pm »
Update :

Zlock update adds energy management using a fading contrast/backlight when unused.
By the way I added fadeIn/Out quite everywhere so that it is even moar epic, and increased limit to 10 digits so that it is even moar securized.



Download ZLock 1.2 now !
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