Omnimaga

Calculator Community => Other Calc-Related Projects and Ideas => Topic started by: willrandship on January 09, 2011, 07:11:50 pm

Title: If by some mirace......(nspire)
Post by: willrandship on January 09, 2011, 07:11:50 pm: I have a few suggestions/ideas.

If we do set up a massive attempt to find a factor for the nspire's RSA, we should do the Boot2 one. Why? because that one is the same for both calcs.

once (if :P) it is cracked, instead of installing an OS as the boot2, we write another boot2 that has no RSA protection for the OS. Then, you could install the TI-OS or a Custom OS, whichever you prefer. It would boot much faster either way (Skip half the loading bar, after it flashes)

This would be the equivalent of RunOS. Plus, any OS would work on any nspire. :)

On a side note, did you know the nspire has a memory location mapped for an SD card host? O.O
Title: Re: If by some mirace......(nspire)
Post by: jnesselr on January 09, 2011, 08:17:19 pm: The only problem is if you fail when messing with boot2, you brick your calc.
Title: Re: If by some mirace......(nspire)
Post by: willrandship on January 09, 2011, 10:38:55 pm: Eh, I have a spare :P JK

That's true.....
Title: Re: If by some mirace......(nspire)
Post by: fb39ca4 on January 10, 2011, 01:19:25 pm: I believe you can check all of the keys after you do the division, but yeah, boot2 is our priority.
Title: Re: If by some mirace......(nspire)
Post by: calc84maniac on January 10, 2011, 02:32:20 pm: Quote from: graphmastur on January 09, 2011, 08:17:19 pm
The only problem is if you fail when messing with boot2, you brick your calc.
Technically, I think there is a way to send boot2 over RS232 cable
Title: Re: If by some mirace......(nspire)
Post by: ExtendeD on January 10, 2011, 04:43:39 pm: And it works, I could recover my boot2 after I accidently erased the original one.
But replacing the boot2 means find the keys in boot1.

If the boot2 replacement (and installation code) has to be 100% reliable to avoid any soldering to recover the calculator in case of a crash, why not make an 100% reliable boot1 code instead, that wouldn't require any key factoring?
Title: Re: If by some mirace......(nspire)
Post by: fb39ca4 on January 10, 2011, 05:28:45 pm: Quote from: calc84maniac on January 10, 2011, 02:32:20 pm
Quote from: graphmastur on January 09, 2011, 08:17:19 pm
The only problem is if you fail when messing with boot2, you brick your calc.
Technically, I think there is a way to send boot2 over RS232 cable
That is from the maintenance menu, it was intended for upgrading, not recovering from a brick.
Title: Re: If by some mirace......(nspire)
Post by: willrandship on January 10, 2011, 05:44:54 pm: Boot1 is read only :(
Title: Re: If by some mirace......(nspire)
Post by: calc84maniac on January 10, 2011, 05:45:52 pm: Quote from: fb39ca4 on January 10, 2011, 05:28:45 pm
Quote from: calc84maniac on January 10, 2011, 02:32:20 pm
Quote from: graphmastur on January 09, 2011, 08:17:19 pm
The only problem is if you fail when messing with boot2, you brick your calc.
Technically, I think there is a way to send boot2 over RS232 cable
That is from the maintenance menu, it was intended for upgrading, not recovering from a brick.
No, boot1 can receive and install boot2 over RS232.
Title: Re: If by some mirace......(nspire)
Post by: willrandship on January 10, 2011, 05:49:05 pm: Do we know what the rest of those ports on the bottom do? I know the nspire actually has an SD host....
Title: Re: If by some mirace......(nspire)
Post by: critor on January 10, 2011, 05:49:34 pm: Quote from: willrandship on January 10, 2011, 05:44:54 pm
Boot1 is read only :(

You're wrong. See my topic about hacking boot1.
Title: Re: If by some mirace......(nspire)
Post by: willrandship on January 10, 2011, 05:51:21 pm: oh? nice! I'm not exactly disappointed :P

That would be a very nice way to do it. any chance of a link, or do I go searchhunting?
Title: Re: If by some mirace......(nspire)
Post by: critor on January 10, 2011, 06:03:41 pm: http://ourl.ca/8594
Title: Re: If by some mirace......(nspire)
Post by: willrandship on January 10, 2011, 06:48:14 pm: sweet. Sounds useful. :)