[Infowarrior] - Suppressed TI cryptographic signing keys, 28 Aug 2009

[Richard Forno]

http://www.wikileaks.org/wiki/Suppressed_Texas_Instruments_cryptographic_signing_keys%2C_28_Aug_2009


Suppressed Texas Instruments cryptographic signing keys, 28 Aug 2009

Texas Instruments, a large US electronics company, is the market  
leader for sophisticated programable calculators used by millions of  
students and engineers. Recently, TI has served internet publishers  
with DMCA legal threats for distributing cryptographic keys that  
permit owners of TI calculators to install third-party system software  
on TI calculators -- an anti-competitive, and arguably unethical act  
by TI.

The file here presents the Operating System signing keys for different  
Texas Instruments calculators. The key for the TI-83 calculator was  
first published by someone at the unitedti.org forum [1]. He or she  
needed several months to crack it. The other keys were found after a  
few weeks by the unitedti.org community through a distributed  
computing project. The keys make it possible for people to create new  
OS software to be used on Texas Instruments calculators.

Texas Instruments contacted several people with DMCA notices to take  
down the keys from their websites. Some of the websites which got a  
DMCA notice are: unitedti.org, brandonw.net and reddit.com. One of  
these DCMA notices can be found here: http://brandonw.net/calcstuff/DMCA_notice.txt

http://www.wikileaks.org/wiki/Suppressed_Texas_Instruments_cryptographic_signing_keys%2C_28_Aug_2009