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DIY USB password generator

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Published on Mar 3, 2012

A do-it-yourself USB dongle that types a password every time it's attached. New password can be generated by tabbing caps lock. Details in my blog:
http://codeandlife.com/2012/03/03/diy...

Instead of relying on pseudo-random numbers, the ATtiny85 inside the gadget uses keypress delays to achieve true randomness. Full project, schematics and source code are available in the blog.

There's now also a Indiegogo crowdfunding project by Alvin Chang to design and manufacture a similar device, inspired by my project. Check it out: http://igg.me/p/284613/x/1812382

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