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elfprince13
Retired


Super Elite (Last Title)


Joined: 11 Apr 2005
Posts: 3500

Posted: 10 Jan 2006 08:44:08 pm    Post subject:

File Name :: ENc4YP710N
Author :: elfprince13
Category :: Ti-83plus Basic Utilities
Screenshot :: [img]http://www.unitedti.org/index.php?act=downloads&do=imgss&id=155[/img]
Description ::
An encryption program. Very useful for encrypting high score tables and copyright notices in basic games.

View File
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elfprince13
Retired


Super Elite (Last Title)


Joined: 11 Apr 2005
Posts: 3500

Posted: 11 Jan 2006 01:15:47 pm    Post subject:

I'm overwhelmed by your response. Rolling Eyes
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leofox
INF student


Super Elite (Last Title)


Joined: 11 Apr 2004
Posts: 3562

Posted: 11 Jan 2006 01:36:32 pm    Post subject:

What does it do exactly? It encrypts something to another something? Maybe you can give some more information on how it works.
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elfprince13
Retired


Super Elite (Last Title)


Joined: 11 Apr 2005
Posts: 3500

Posted: 11 Jan 2006 01:38:30 pm    Post subject:

it accepts input as a string, generates a key and data stored as lists. The best way to use it is to embed a key in program, and then use my encrypt/decrypt routine to save high score tables that are a lot harder to hack.
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DJ Omnimaga
http://i-lost-the-ga.me


Calc Guru


Joined: 14 Nov 2003
Posts: 1196

Posted: 11 Jan 2006 02:16:30 pm    Post subject:

533/\/\ 1337 8|_|7 45 130|=0>< 54||) (4|\| j00 6|\/3 /\/\0|23 |)374|15?
SEEM LEET BUT AS LEOFOX SAID CAN YOU GIVE MORE DETAILS?

sry for 1337 but the program name is l337


Last edited by Guest on 11 Jan 2006 03:34:58 pm; edited 1 time in total
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elfprince13
Retired


Super Elite (Last Title)


Joined: 11 Apr 2005
Posts: 3500

Posted: 11 Jan 2006 02:42:37 pm    Post subject:

If you just run the program you get a menu: Encrypt/Decrypt.

If you select Encrypt, it asks you for a string which it parses into a list. Then it generates a random list the same length as the string list. Then it combines the string list and the random list

like this

....
(L)SCDAT + (L)SCKEY -> (L)SCDAT
....

then to retrieve the data it uses (L)SCDAT - (L)SCKEY -> L1

and then reparses L1 into a string and displays it.

However if you embed the routine into another program, you can encrypt high score tables, and copyright messages to make them harder to hack. For example

....
//store high scores
augment((L)SCDAT,(L)SCKEY->(L)HGSCR
Delvar (L)SCDAT
Delvar (L)SCKEY
....
//retrieve high scores
[first half (L)HGSCR]->(L)SCDAT
[second half]->(L)SCKEY
//parse display scores
....
Delvar (L)SCDAT
Delvar (L)SCKEY
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