« previous next »
Pages: [1]   Go Down

Author Topic: Calculator OS replacement  (Read 6902 times)

0 Members and 1 Guest are viewing this topic.

Offline XiiDraco

  • LV7 Elite (Next: 700)
  • *******
  • Posts: 513
  • Rating: +32/-5
  • Forget the numbers, just call me, Recreation.
    • View Profile
    • Black-Lark Games
Calculator OS replacement
« on: December 14, 2012, 09:55:03 pm »
I am trying to download the OS 2.55MP to my calculator(yes I know it sucks). I need to get it to the calc so I can downgrade, but every time I put it on it freezes at validating.
Logged

Offline Darl181

  • «Yo buddy, you still alive?»
  • CoT Emeritus
  • LV12 Extreme Poster (Next: 5000)
  • *
  • Posts: 3408
  • Rating: +305/-13
  • VGhlIEdhbWU=
    • View Profile
    • darl181.webuda.com
Re: Calculator OS replacement
« Reply #1 on: December 14, 2012, 09:57:33 pm »
Validating takes a while on boot code 1.03 (which I'm guessing you have), iirc it can get upwards of 10 minutes :/
Logged
Vy'o'us pleorsdti thl'e gjaemue

Offline XiiDraco

  • LV7 Elite (Next: 700)
  • *******
  • Posts: 513
  • Rating: +32/-5
  • Forget the numbers, just call me, Recreation.
    • View Profile
    • Black-Lark Games
Re: Calculator OS replacement
« Reply #2 on: December 14, 2012, 10:00:23 pm »
Quote from: Darl181 on December 14, 2012, 09:57:33 pm
Validating takes a while on boot code 1.03 (which I'm guessing you have), iirc it can get upwards of 10 minutes :/

Just realized that, my bad.
Logged

Offline FloppusMaximus

  • LV5 Advanced (Next: 300)
  • *****
  • Posts: 290
  • Rating: +57/-5
    • View Profile
Re: Calculator OS replacement
« Reply #3 on: December 14, 2012, 10:04:07 pm »
Pathetic.  No reason for simple validation to be that slow.  They should have asked me to write the code for them. ;)
Logged
+1/-0 karm for this message

Offline calc84maniac

  • eZ80 Guru
  • Coder Of Tomorrow
  • LV11 Super Veteran (Next: 3000)
  • ***********
  • Posts: 2912
  • Rating: +471/-17
    • View Profile
    • TI-Boy CE
Re: Calculator OS replacement
« Reply #4 on: December 14, 2012, 10:07:26 pm »
There was no reason to use such large signing keys in the first place :/
Logged
+1/-0 karm for this message
"Most people ask, 'What does a thing do?' Hackers ask, 'What can I make it do?'" - Pablos Holman

Offline XiiDraco

  • LV7 Elite (Next: 700)
  • *******
  • Posts: 513
  • Rating: +32/-5
  • Forget the numbers, just call me, Recreation.
    • View Profile
    • Black-Lark Games
Re: Calculator OS replacement
« Reply #5 on: December 14, 2012, 10:10:35 pm »
Quote from: FloppusMaximus on December 14, 2012, 10:04:07 pm
Pathetic.  No reason for simple validation to be that slow.  They should have asked me to write the code for them. ;)

ROFL XD
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: Calculator OS replacement
« Reply #6 on: December 15, 2012, 12:37:38 am »
Quote from: calc84maniac on December 14, 2012, 10:07:26 pm
There was no reason to use such large signing keys in the first place :/

TI wanted to take pre-emptive measures for when we get able to crack them.

By 2025, the TI-84 Plus series will use 65536 bits RSA keys.
Logged
+1/-0 karm for this message

Offline DrDnar

  • LV7 Elite (Next: 700)
  • *******
  • Posts: 546
  • Rating: +97/-1
    • View Profile
Re: Calculator OS replacement
« Reply #7 on: December 15, 2012, 04:37:44 am »
Quote from: XiiR3CR34T10N on December 14, 2012, 10:00:23 pm
Quote from: Darl181 on December 14, 2012, 09:57:33 pm
Validating takes a while on boot code 1.03 (which I'm guessing you have), iirc it can get upwards of 10 minutes :/

Just realized that, my bad.
You need to patch/downgrade your boot code. It's really quite funny: we only figured out that hacking the boot code was possible as a consequence of us researching ways to get around the new keys. Although, really, I've always felt that the best method would be to write an entirely new OS receiver, which we can do because there's a nearly unfixable bug in the OS. (According to BrandonW, fixing it would require removing the ability to send variables directly to the archive, or completely rewriting the entire variable receiving code.)
Logged
+1/-0 karm for this message
"No tools will make a man a skilled workman, or master of defense, nor be of any use to him who has not learned how to handle them, and has never bestowed any attention upon them. . . . Yes, [] the tools which would teach men their own use would be beyond price."—Plato's The Republic, circa 380 BC

Offline XiiDraco

  • LV7 Elite (Next: 700)
  • *******
  • Posts: 513
  • Rating: +32/-5
  • Forget the numbers, just call me, Recreation.
    • View Profile
    • Black-Lark Games
Re: Calculator OS replacement
« Reply #8 on: December 15, 2012, 03:06:06 pm »
I finished downgrading last night and now I'm going to work on the game today.
Logged
Pages: [1]   Go Up
« previous next »