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Erin Browning
Erin Browning

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Sep 7, 2014

Using an XOR keystream cipher in Ruby

This past week I attended Windy City Rails. One of the sponsors, BrainTree, held a cryptohunt—they challenged attendees to solve some basic cryptography problems. One of the levels required xoring a hex and a string together and returning the value as a hex. Ruby doesn’t have native handling for string…

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Erin Browning

Erin Browning

I’m a security engineer / www.erinbrowning.net

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