Didn't know this website thank for sharing. Do you know what format are MESSAGE and SALT? I thought parameters must be in binary but inside github :
All is binary. If you are interested in PBKDF2 and HMAC, it's explained in details on wikipedia.
password:
636f6e6475637420636f72616c20656e72696368206c6f63616c20736372697074206d6f756e7461696e2072656d61696e206672696e6765206c6174696e207468726f7720776f6f6420776562
salt for pbkdf2:
6d6e656d6f6e6963
salt for the first hmac:
6d6e656d6f6e696300000001