« previous next »
Pages: 1 [2]   Go Down

Author Topic: TI-NSpire Operative Systems  (Read 9135 times)

0 Members and 1 Guest are viewing this topic.

Offline ruler501

  • Meep
  • LV11 Super Veteran (Next: 3000)
  • ***********
  • Posts: 2475
  • Rating: +66/-9
  • Crazy Programmer
    • View Profile
Re: TI-NSpire Operative Systems
« Reply #15 on: February 27, 2011, 03:19:12 pm »
It prevents editing unless you know it. i must find out what it is
Logged
I currently don't do much, but I am a developer for a game you should totally try out called AssaultCube Reloaded download here https://assaultcuber.codeplex.com/
-----BEGIN GEEK CODE BLOCK-----
Version: 3.1
GCM/CS/M/S d- s++: a---- C++ UL++ P+ L++ E---- W++ N o? K- w-- o? !M V?
PS+ PE+ Y+ PGP++ t 5? X R tv-- b+++ DI+ D+ G++ e- h! !r y

Offline shrear

  • LV4 Regular (Next: 200)
  • ****
  • Posts: 193
  • Rating: +17/-0
    • View Profile
Re: TI-NSpire Operative Systems
« Reply #16 on: February 27, 2011, 03:56:10 pm »
Quote from: Scout on February 27, 2011, 03:18:22 pm
"The OS is signed with a 1024-bit key"

In the middle of the .tno fiel code is a key? Sorry I understand what it does, just not what it is.

I think the RSA key is explained pretty well here
Logged

Offline Deep Toaster

  • So much to do, so much time, so little motivation
  • Administrator
  • LV13 Extreme Addict (Next: 9001)
  • *************
  • Posts: 8217
  • Rating: +758/-15
    • View Profile
    • ClrHome
Re: TI-NSpire Operative Systems
« Reply #17 on: February 27, 2011, 04:05:23 pm »
Quote from: Stefan Bauwens on February 27, 2011, 03:18:59 pm
Quote from: Scout on February 27, 2011, 03:16:58 pm
@Stefen: Yup.
Ok, thanks.
(It isn't stefEn, it's stefan actually) :P

Edit: How can changing the 'name' of the os, change the os.

He didn't change the filename -- he actually changed the name string stored as data in the OS itself. The entire OS is summed and signed.
Logged



Offline DJ Omnimaga

  • Clacualters are teh gr33t
  • CoT Emeritus
  • LV15 Omnimagician (Next: --)
  • *
  • Posts: 55943
  • Rating: +3154/-232
  • CodeWalrus founder & retired Omnimaga founder
    • View Profile
    • Dream of Omnimaga Music
Re: TI-NSpire Operative Systems
« Reply #18 on: February 28, 2011, 03:58:23 am »
Quote from: apcalc on February 27, 2011, 03:12:15 pm
The only way you will be able to "edit" the OS file is through an Ndless program on the calc.  As far as I have tested (not all that much, but a bit), some of the files will reject editing (or will be overwritten with the "correct" copy, or something like that is happening).
Like Compu's 1337 mod, right? http://ourl.ca/9159
« Last Edit: February 28, 2011, 03:59:24 am by DJ_O »
Logged

Offline Munchor

  • LV13 Extreme Addict (Next: 9001)
  • *************
  • Posts: 6199
  • Rating: +295/-121
  • Code Recycler
    • View Profile
Re: TI-NSpire Operative Systems
« Reply #19 on: February 28, 2011, 09:06:41 am »
Quote from: shrear on February 27, 2011, 03:56:10 pm
Quote from: Scout on February 27, 2011, 03:18:22 pm
"The OS is signed with a 1024-bit key"

In the middle of the .tno fiel code is a key? Sorry I understand what it does, just not what it is.

I think the RSA key is explained pretty well here

Thanks.
Logged
Pages: 1 [2]   Go Up
« previous next »