Patrick Fallberg
9fd41b4030
Taken from the sha204_library folder in https://github.com/jimblom/sha204-Breakout Commit 8e1ac05ef987b1869605ad067db2bdbaec1c109f ATSHA204 is a crypto cirquit from Atmel that enables SHA256-based MAC and HMAC calculations as well as secure key storage and random number generation. This can be used to sign messages passed between sensor nodes and prevent both man-in-the-middle and replay attacking.