The first easily-embeddable MD5 library for Arduino
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Latest commit 8c04fe7 May 17, 2017 @tzikis committed on GitHub Merge pull request #10 from schuppeste/master
Fix for Bytearrays with Zero Bytes

This is an MD5 library for the Arduino, based on scottmac's MD5 library, which you can find here:

I created this because I was having a really hard time finding an easy-to-install and use libray for the Arduino, so I decided to make my own. There is an example on how to use it.


Create a folder named MD5 in the libraries folder inside your Arduino sketch folder. If the libraries folder doesn't exist, create it. Then copy everything inside. (re)launch the Arduino IDE.

You're done. Time for a mojito


If you create md5 Hashes in a loop you must give the Memory back to the System

unsigned char* hash=MD5::make_hash("hello world");
//generate the digest (hex encoding) of our hash
char *md5str = MD5::make_digest(hash, 16);
//print it on our serial monitor
//Give the Memory back to the System if you run the md5 Hash generation in a loop