Find all your DIY electronics in the MakerShed. 3D Printing, Kits, Arduino, Raspberry Pi, Books & more!

Pt 2112
Looks like it might be possible to run other OSes without additional software on the TI-83

The ever-mysterious Benjamin Moody posted a cryptic message on the United-TI forum yesterday. In it, he listed the factorization of the 512-bit RSA modulus used by TI’s OS signing key for the 83+ (the “0004 key”). No other details are yet available about how he achieved this feat of substantial brute forcing power. In the event of United-TI downtime, Brandon Wilson has put a copy of Benjamin’s values on his personal website.

With this achievement, any operating system can be cryptographically signed in a manner identical to that of the original TI-OS. Third party operating systems can thus be loaded on any 83+ calculators without the use of any extra software (that was mentioned in recent news) Complete programming freedom has finally been achieved on the TI-83 Plus!

Phillip Torrone

Editor at large – Make magazine. Creative director – Adafruit Industries, contributing editor – Popular Science. Previously: Founded – Hack-a-Day, how-to editor – Engadget, Director of product development – Fallon Worldwide, Technology Director – Braincraft.


Related

Comments

  1. Hans says:

    Maybe try learning to read? Despite your claim it is very well documented how this was done, just a few postings down the thread.

  2. Phillip Torrone says:

    @hans – re-read the post, i quoted ticalc.org… it’s not “our” claim.

  3. Nony Mouse says:

    This news seems to have sparked an interesting phenomenon – the reddit/etc., articles about this post, and several mentions in blogs, seem to be rapidly disappearing from the Internet.

    Perhaps the numbers
    5,174,413,344,875,007,990,519,123,187,618,500,139,954,995,264,909,695,897,020,209,972,309,881,454,541

    and

    1,325,290,319,363,741,258,636,842,042,448,323,483,211,759,628,292,406,959,481,461,131,759,210,884,908,747.

    have some qabalistic power to unleash an Internet vacuum cleaner…