Monochrome TI calc pride flags
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README.md

Monochrome TI calc pride flags

It's a design I made for TI pride flags. There's one for each model of TI monochrome graphing calculators with flash app support.

Each of them checked flash apps and the OS for a RSA-512 signature, so you couldn't easily make your own without a license from TI. However, everything changed in 2009 when Benjamin Moody factored the key for the TI-83+, and the community quickly factored the others.

The flags shown here have been derived from those private keys.

Read more about it

How to read

Basically, it's a grid of 7x3, each of the cells' 24-bit color, read left to right and top to bottom, reads 24 bits of the value of d. The last 8 bits is encoded in the sine wave's color in 8-bit greyscale.

01: TI-92 Plus OS signing key

02: TI-73/Explorer OS signing key

03: TI-89 OS signing key

04: TI-83 Plus / Silver Edition OS signing key

08: Voyage 200 OS signing key

09: TI-89 Titanium OS signing key

0A: TI-84 Plus / TI-84 Plus Silver Edition OS signing key

0101: TI-92 Plus Flash application signing key

0102: TI-73/Explorer Flash application signing key

0103: TI-89 Flash application signing key

0104: TI-83 Plus Flash application signing key

0108: Voyage 200 Flash application signing key

0109: TI-89 Titanium Flash application signing key

010A: TI-84+ / TI-84 Silver Flash application signing key

010F: TI-84 Plus C Silver Edition Flash application signing key

Date-stamp signing key

Valid for:

  • TI-73 / Explorer
  • TI-83 Plus / TI-83 Silver Edition
  • TI-84 Plus / TI-84 Silver Edition
  • TI-84 Plus C Silver Edition
  • TI-89 / TI-89 Titanium
  • TI-92 Plus
  • Voyage 200

License

The entire contents of this repo is illegal. Have fun. If you really need a license, the generator script and the design are licensed under CC BY-NC-SA 4.0.

The keys were pulled from BrandonW's website, and are (dubiously) property of TI.