« previous next »
Pages: [1]   Go Down

Author Topic: PTTCopier v0.1  (Read 9664 times)

0 Members and 2 Guests are viewing this topic.

Offline DebboR

  • LV1 Newcomer (Next: 20)
  • *
  • Posts: 14
  • Rating: +6/-2
    • View Profile
PTTCopier v0.1
« on: December 08, 2012, 11:05:10 am »
Hello!

I had got some spare time today, so I tried hacking the PTT file restrictions (which was too easy, in my opinion). What this program does is it asks you to copy all your MyLib files over to Press-to-Test mode when the nSpire boots up into PTT. Here's my YT-video:

[ Invalid YouTube link ]

Download link: link removed

It runs on any nSpire handheld (as far as I know), but it only works with ndless v3.1.

THIS IS FOR DEMONSTRATION PURPOSES ONLY! DON'T CHEAT USING THIS! I AM NOT RESPONSIBLE FOR YOU GETTING CAUGHT!

I hope you guys like it!
DebboR

EDIT: Zeda- Removed links.
« Last Edit: December 08, 2012, 11:47:13 am by Xeda112358 »
Logged
+2/-2 karm for this message

Offline TheNlightenedOne

  • LV6 Super Member (Next: 500)
  • ******
  • Posts: 427
  • Rating: +16/-1
    • View Profile
Re: Re: PTTCopier v0.1
« Reply #1 on: December 08, 2012, 11:08:40 am »
Nice work, I always love seeing Nspires being hacked. However, 2 PTT killers were on a few months ago and both got pulled. You should probably remove the link.
Logged
"Eris" (Ndless 3.1)
"Keto" (Ndless 3.1)
"Luna" (AMS 3.10, HW4)
"Aurora" (2.55MP)

Offline Lionel Debroux

  • LV11 Super Veteran (Next: 3000)
  • ***********
  • Posts: 2135
  • Rating: +290/-45
    • View Profile
    • TI-Chess Team
Re: PTTCopier v0.1
« Reply #2 on: December 08, 2012, 11:15:23 am »
Quote
I had got some spare time today, so I tried hacking the PTT file restrictions (which was too easy, in my opinion)
It is way too easy.
The Nspire is not "secure" for standardized testing, whatever that means - it's just that testing authorities aren't aware of it enough ^^
Logged
Member of the TI-Chess Team.
Co-maintainer of GCC4TI (GCC4TI online documentation), TILP and TIEmu.
Co-admin of TI-Planet.

Offline compu

  • LV5 Advanced (Next: 300)
  • *****
  • Posts: 275
  • Rating: +63/-3
    • View Profile
Re: PTTCopier v0.1
« Reply #3 on: December 08, 2012, 11:22:11 am »
Link removed in 3.. 2.. 1..

It's nice that someone else found this security hole as well :D
This just shows how bad the PTT mode is ;)
Logged

Offline TheNlightenedOne

  • LV6 Super Member (Next: 500)
  • ******
  • Posts: 427
  • Rating: +16/-1
    • View Profile
Re: Re: Re: PTTCopier v0.1
« Reply #4 on: December 08, 2012, 11:22:48 am »
Quote from: Lionel Debroux on December 08, 2012, 11:15:23 am
Quote
I had got some spare time today, so I tried hacking the PTT file restrictions (which was too easy, in my opinion)
It is way too easy.
The Nspire is not "secure" for standardized testing, whatever that means - it's just that testing authorities aren't aware of it enough ^^
I agree. The best way for testing authorities to dispel cheating is to reset all memory, because the PTT is like paper.
Logged
"Eris" (Ndless 3.1)
"Keto" (Ndless 3.1)
"Luna" (AMS 3.10, HW4)
"Aurora" (2.55MP)

Offline Xeda112358

  • they/them
  • Moderator
  • LV12 Extreme Poster (Next: 5000)
  • ************
  • Posts: 4704
  • Rating: +719/-6
  • Calc-u-lator, do doo doo do do do.
    • View Profile
Re: PTTCopier v0.1
« Reply #5 on: December 08, 2012, 11:40:26 am »
I removed the link, just in case.
EDIT: Removed the Youtube link
« Last Edit: December 08, 2012, 11:48:13 am by Xeda112358 »
Logged

Offline Lionel Debroux

  • LV11 Super Veteran (Next: 3000)
  • ***********
  • Posts: 2135
  • Rating: +290/-45
    • View Profile
    • TI-Chess Team
Re: PTTCopier v0.1
« Reply #6 on: December 08, 2012, 11:41:55 am »
Quote
The best way for testing authorities to dispel cheating is to reset all memory
For most models, yup... but not so for the Nspire Clickpad :)
An easy hardware modification enables thorough tampering with millions of production models, including (because it happened on prototypes, and the simple hardware modification makes production models equivalent to prototypes) permanent install of the CAS OS on the CAS-capable model sold as non-CAS.
The boot2, diags and OS could even be re-signed with unique third-party keys, in such a way that reformatting memory in the exam room and transferring a new OS (which should always have been done anyway, if cheating was taken even remotely seriously...) will render the calculator simply inoperative - and therefore, will render the exam unfair.
Logged
Member of the TI-Chess Team.
Co-maintainer of GCC4TI (GCC4TI online documentation), TILP and TIEmu.
Co-admin of TI-Planet.

Offline Juju

  • Incredibly sexy mare
  • Coder Of Tomorrow
  • LV13 Extreme Addict (Next: 9001)
  • *************
  • Posts: 5730
  • Rating: +500/-19
  • Weird programmer
    • View Profile
    • juju2143's shed
Re: PTTCopier v0.1
« Reply #7 on: December 08, 2012, 11:43:18 am »
Yeah, I'm afraid PTT hacks might not be allowed on the forums, so you might want to remove that link.

Otherwise, why the protection is so weak I have no idea. If TI wants people to not cheat, they should strenghten the protection.
Logged

Remember the day the walrus started to fly...

I finally cleared my sig after 4 years you're happy now?
THEGAME
This signature is ridiculously large you've been warned.

The cute mare that used to be in my avatar is Yuki Kagayaki, you can follow her on Facebook and Tumblr.

Offline critor

  • Editor
  • LV11 Super Veteran (Next: 3000)
  • ***********
  • Posts: 2079
  • Rating: +439/-13
    • View Profile
    • TI-Planet
Re: PTTCopier v0.1
« Reply #8 on: December 08, 2012, 11:43:19 am »
Quote from: Xeda112358 on December 08, 2012, 11:40:26 am
I removed the link, just in case.

Good idea I think.

But there is still a problem with the video embedded in 1st post - the download link remains in its description.
« Last Edit: December 08, 2012, 11:44:34 am by critor »
Logged
TI-Planet co-admin.

Offline Adriweb

  • Editor
  • LV10 31337 u53r (Next: 2000)
  • **********
  • Posts: 1708
  • Rating: +229/-17
    • View Profile
    • TI-Planet.org
Re: PTTCopier v0.1
« Reply #9 on: December 08, 2012, 11:45:06 am »
Quote from: Juju on December 08, 2012, 11:43:18 am
Otherwise, why the protection is so weak I have no idea. If TI wants people to not cheat, they should strenghten the protection.

Well, I guess at first they didn't "see" Ndless coming, and thus put the "simplest" protection that actually was enough when not having native code possibility.
But then, they never took the time to redo it when Ndless first came out (a while ago)
Logged
+1/-0 karm for this message
My calculator programs
TI-Planet.org co-admin.
TI-Nspire Lua programming : Tutorials  |  API Documentation

Offline Netham45

  • LV11 Super Veteran (Next: 3000)
  • ***********
  • Posts: 2103
  • Rating: +213/-4
  • *explodes*
    • View Profile
Re: PTTCopier v0.1
« Reply #10 on: December 08, 2012, 12:17:33 pm »
PTT hacks are in violation of the rules against cheating, topic locked.
Logged
Omnimaga Admin
Pages: [1]   Go Up
« previous next »