Re: A82: Re: password program

To: assembly-82@lists.ticalc.org
Subject: Re: A82: Re: password program
From: Jeremy Wazny <j.wazny@ugrad.unimelb.edu.au>
Date: Sun, 28 Mar 1999 00:17:15 +1100 (EST)
Delivered-To: assembly-82-outgoing@towerguard.unix.edu.sollentuna.se
Delivered-To: assembly-82@lists.ticalc.org
In-Reply-To: <022001be7821$07d36160$c3313d80@res.gatech.edu>
Reply-To: assembly-82@lists.ticalc.org


You could try storing the password in the undisplayed portions of the
display controller memory. :)

-Jeremy

On Sat, 27 Mar 1999, Dines Justesen wrote:

> 
> One problem : it would always be possible to send a copy of CrASH to another
> calc and use it on that calc without using the password. The only way to
> correct this is to modify CrASH. Making sure that the password is not
> transferred to another calc is possible (can be done in BASIC using a bit of
> hacking), but it eont help since you wouldn't have to use the pasword on the
> other calc.
> 
> Dines
> 
> BTW There do exits BASIC programs for the TI82, so how much banning CrASH
> will help you I am not sure.
> ----- Original Message -----
> From: <SinMostaza@aol.com>
> To: <assembly-82@lists.ticalc.org>
> Sent: Friday, March 26, 1999 1:16 PM
> Subject: A82: password program
> 
> 
> >
> > I am a math teacher for calculus, and I require all of my students to have
> a
> > TI-82 program. Recently, one of my students approached me and asked if he
> > could put CrASH on his calculator. I discussed it with my colleagues, and
> they
> > suggested that I find some way to make sure that only the students who
> will
> > not be distracted by the games should be allowed to use them.  I am
> familiar
> > with Basic programing, and I had created a password program as an example,
> but
> > there was no way for me to implement it into CrASH without knowing
> assembly.
> > (I also later found out that the obscure variable I was using to save the
> > password was in fact transferred when somebody backed up their calculator
> to
> > another. This would completely defeat the purpose of the program.)
> > Anyway--what I would like the program to do is ask for a password the
> first
> > time, and if it is entered correctly, it will never be needed again to
> enter
> > CrASH. IF somebody could help me with this, please email me.
> >
> > thank you,
> > Yoni Kurland
> > SinMostaza@aol.com
> >
> 
>

References:

A82: Re: password program

From: "Dines Justesen" <dines@resnet.gatech.edu>