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TI-83 Plus 512-bit RSA Key Cracked

Cubeman (530448) writes | more than 5 years ago

Handhelds 0

Cubeman writes "The 512-bit RSA key protecting the operating system of TI-83 Plus and TI-84 Plus calculators has been cracked! Benjamin Moody posted the factorization yesterday, and it has been verified by Brandon Wilson. With the RSA key broken, developers can now release cryptographically signed third-party OSes which will validate on any unmodified calculator. While TI's security protections have previously been broken, all prior hacks required loading an extra program on each calculator. This broken OS key means that the last frontier of TI hacking has finally been achieved. Calculator programmers now have complete control over every area of the calculator and can write any code in any form, even entire operating systems, and distribute them freely on any 83+/84+ calculator in existence. ticalc.org has an article about this as well."

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