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Author Topic: Nspire 2.1 out, don't install it!  (Read 91757 times)

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Offline apcalc

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Re: Nspire 2.1 out, don't install it!
« Reply #150 on: July 18, 2010, 07:53:55 pm »
I think it will be a little while before the 2.1 nspire show up on shelves, but I am wondering if the Nspires with the touchpads built in will even be downgradeable at all.
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Offline DJ Omnimaga

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Re: Nspire 2.1 out, don't install it!
« Reply #151 on: July 18, 2010, 07:56:28 pm »
Yeah, I heard that this protection has been around since the beginning, but that it did not work on older models or something. I get worried on newer Nspires the protection will be even stronger.
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Offline Snake X

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Re: Nspire 2.1 out, don't install it!
« Reply #152 on: July 18, 2010, 07:58:17 pm »
oh definitely didn't get scammed.. lol I bought it from one of the TI dealers that they have listed

its at copcoinc.com... yeah, they have a weird thing that they will email you after 5 pm on the day that its shipped and so far I havn't gotten that email yet.
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Offline DJ Omnimaga

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Re: Nspire 2.1 out, don't install it!
« Reply #153 on: July 18, 2010, 08:02:50 pm »
Mhmm I see. It doesn't really necessarly mean the dealers they provide aren't scams, though. TI site is generally outdated. By the time they updated it until now, the company that sold the Nspire could have been bought by another group and went under without warnign anyone. I tend to be careful when buying stuff online.
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Offline apcalc

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Re: Nspire 2.1 out, don't install it!
« Reply #154 on: July 18, 2010, 08:04:22 pm »
Still, I would think this site is ok since they do have the touchpad Nspires.  They have only been out for a few months.  If the site was a scam, I would think that they would not have listed new products.
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Offline Snake X

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Re: Nspire 2.1 out, don't install it!
« Reply #155 on: July 18, 2010, 08:07:01 pm »
yeah, I think they will email me tomorrow about it.. if not then.... x.x
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Offline DJ Omnimaga

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Re: Nspire 2.1 out, don't install it!
« Reply #156 on: July 18, 2010, 08:07:08 pm »
Well we never know sometimes. Some thieves are professionals and sometimes they may even seem to be more legit than actual legit companies. I personally only ever buy from sites like Ebay or Amazon where we got protections if we don't get the item. on Amazon I bought a CD from Calibris on the marketplace once. They never sent it and I got a refund almost immediately after I contacted Amazon.
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Offline Lionel Debroux

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Re: Nspire 2.1 out, don't install it!
« Reply #157 on: July 19, 2010, 01:42:20 am »
To those who still think we can factor the keys: I suggest you to read the http://ourl.ca/6236 topic both entirely and carefully ;)
1) we don't have access to the special algorithms and implementations, made by the top researchers of the field, that enabled factoring RSA-768.
2) these researchers, in their paper about RSA-768, estimate that a) RSA-1024 is about a thousand times harder (-> certainly requires improvements to the aforementioned, private algorithms, and even more special clusters of computers for the post-processing stages) than RSA-768 and b) such efforts need professional full-time supervision.
3) it can be derived from the above (I wrote it somewhere, maybe not on Omnimaga) that we need 10000 to 100000 TB of storage space...
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Offline DJ Omnimaga

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Re: Nspire 2.1 out, don't install it!
« Reply #158 on: July 19, 2010, 01:44:08 am »
X.x

I guess it's a no-go, then.

If there's no exploit in OS 2.1 and the future OSes, then TI has won the battle against Ndless...
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Offline bwang

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Re: Nspire 2.1 out, don't install it!
« Reply #159 on: July 19, 2010, 02:31:10 am »
Well, Ndless 2 is still in active development (I think), so you'll never know what ExtendeD and friends will come up with :)
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Offline DJ Omnimaga

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Re: Nspire 2.1 out, don't install it!
« Reply #160 on: July 19, 2010, 02:47:00 am »
True, but what I mean is if somehow, TI managed to successfully fix every possible exploits in 2.1 (or if they do in the next OS) and manages to not introduce new ones. No one is perfect so there are little chances that this happens, but we never know.

That said, if people confirm on touchpad calcs, OS 2.1 can be downgraded to 2.0, an Ndless 2 that only runs on 1.7 and 2.0 could do the job for as long as TI makes 1.7 and 2.0 available on their site (I wouldn't be surprised if they were gone by now, though.)
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Offline critor

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Re: Nspire 2.1 out, don't install it!
« Reply #161 on: July 19, 2010, 05:07:45 am »
Yes, TouchPads can be downgraded from 2.1 to 2.0.

I guess the protection that's borbidding downgrades to OSes older than 2.0 is exactly the same.
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Offline Snake X

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Re: Nspire 2.1 out, don't install it!
« Reply #162 on: July 19, 2010, 08:34:30 am »
oh man... this does not sound good
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Offline critor

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Re: Nspire 2.1 out, don't install it!
« Reply #163 on: July 19, 2010, 08:39:59 am »
Quote from: Snake X on July 19, 2010, 08:34:30 am
oh man... this does not sound good


It does sound good to me...

If we manage to break the OS 2.1 protection oncalc...
Then by the same way, we are breaking the TouchPad protection.


TI is really stupid. Before the releease of OS 2.1, we knew allmost nothing about the TouchPad protection :p
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Offline Snake X

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Re: Nspire 2.1 out, don't install it!
« Reply #164 on: July 19, 2010, 09:01:19 am »
I meant not good referring to the RSA keys
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