Re: A89: Re: How TI's keys work
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Re: A89: Re: How TI's keys work
SO PEOPLE WILL PAY to make larger programs
Bryan Rabeler wrote:
>
> But non-free ones don't have that restriction? Why?
>
> Bryan
>
> ----- Original Message -----
> From: "Scott Dial" <wrath@calc.org>
> To: <assembly-89@lists.ticalc.org>
> Sent: Thursday, December 02, 1999 8:18 PM
> Subject: Re: A89: Re: How TI's keys work
>
> >
> > Your about on my nerves... RTFW (W = Website), free apps don't have to
> > be signed, but they are limited to 8k
> >
> > Bryan Rabeler wrote:
> > >
> > > Well, the "Are they crazy?" bit was directed more along the lines of is
> this
> > > their plan to stop us from making games? But since apps aren't meant
> for
> > > games, I see your point. Although if this 8kb limit is really true,
> thats a
> > > real pain.
> > >
> > > Bryan
> > >
> > > ----- Original Message -----
> > > From: "mhlandry" <mhlandry@bellsouth.net>
> > > To: <assembly-89@lists.ticalc.org>
> > > Sent: Thursday, December 02, 1999 7:27 PM
> > > Subject: Re: A89: Re: How TI's keys work
> > >
> > > >
> > > > TI may be crazy, but they were pretty smart when they came up with
> > > > this application bit. They will not sign any applications unless you
> > > > buy the Educational version (limited amoutn of signs) or the
> > > > Professional version (unlimited). As someone previously said, (I
> think
> > > > SMN) the signing is based on these certificates. You get a
> certificate
> > > > with your calculators information, specifically the serial number (I
> > > > think). Then they make the app so that it will run on a calculator
> with
> > > > one specified serial number.
> > > > As to you question "Are they crazy?", No. Apps were not meant
> for
> > > > games, but for professional software that could be developed by
> > > > professionals (several professors with PHD's were on the sdk beta
> team)
> > > > and sold to schools and the such. Although apps can be used for
> games.
> > > > Hope this will clear things up.
> > > >
> > > > P.S - Someone please correct me if I was wrong on anything (*cough*
> Dan
> > > > E. *cough*)
> > > >
> > > > - Matt
> > > >
> > > > Bryan Rabeler wrote:
> > > > >
> > > > > So are you saying that in genereal, TI won't sign apps if you wrote
> them
> > > > > using the free SDK? Are they crazy? Do they want to stop us from
> > > making
> > > > > games altogether?
> > > > >
> > > > > Bryan
> > > > >
> > > > > ----- Original Message -----
> > > > > From: "Scott Noveck" <noveck@pluto.njcc.com>
> > > > > To: <assembly-89@lists.ticalc.org>
> > > > > Sent: Thursday, December 02, 1999 4:14 PM
> > > > > Subject: A89: How TI's keys work
> > > > >
> > > > > >
> > > > > > Judging by the 83+ SDK beta, you guys are all waaaaay off.
> > > > > >
> > > > > > First of all, the way app signing works is different from what
> you've
> > > > > > described. The application itself is just modified to tell the
> calc
> > > that
> > > > > it
> > > > > > requires some "certificate(s)" to run. The certificates are what
> has
> > > to
> > > > > be
> > > > > > generated specifically for each serial number, and THESE are
> heavily
> > > > > > encrypted. And I doubt you'll get anything at all out of that.
> > > > > >
> > > > > > Second, TI does NOT just sign any app you send them. Normally,
> > > they'll
> > > > > only
> > > > > > do it for those who BUY the SDK - for all other purposes, the free
> SDK
> > > is
> > > > > > just a listing of ROM addresses. The 83+ apps out now - like
> > > calcsys -
> > > > > were
> > > > > > signed because TI has given us SDK beta testers the opportunity to
> get
> > > an
> > > > > > app signed for our work -- actually a fair decision on their part.
> > > > > >
> > > > > > Also, the serial number on any HW1 calc can be changed. The whole
> > > reason
> > > > > > HW2 was released is to fix the security bug allowing ROM
> modification
> > > on
> > > > > old
> > > > > > calcs. FYI, it's the same bug Archive Utility uses, and although
> no
> > > one's
> > > > > > tried yet the address is known (I've seen it somewhere) and it
> COULD
> > > > > > theoretically be done.
> > > > > >
> > > > > > -Scott
> > > > > >
> > > > > >
> > > > > >
> > > >
> > > >
> >
> > --
> > Scott "_Wrath_" Dial
> > wrath@calc.org
> > ICQ#3608935
> > TimeCity AI Guy II - www.timecity.org
> > Member of TCPA - tcpa.calc.org
> > __________________________________________
> > NetZero - Defenders of the Free World
> > Get your FREE Internet Access and Email at
> > http://www.netzero.net/download/index.html
> >
> >
--
Scott "_Wrath_" Dial
wrath@calc.org
ICQ#3608935
TimeCity AI Guy II - www.timecity.org
Member of TCPA - tcpa.calc.org
__________________________________________
NetZero - Defenders of the Free World
Get your FREE Internet Access and Email at
http://www.netzero.net/download/index.html
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