PBKDF2 and SHA-1 question

[ilya980]

I want to simulate this calculation in MATLAB. Do you know if MATLAB scripts for this already exist? Is there a good algorithm description for PKCS5_PBKDF2_HMAC and HMAC functions? I have a HMAC-SHA1 function that computes a hash from the message and a key, but I don't understand whether it is useful. Also, hashcat (m16800) is doing it differently, using OpenCL, right?

Thanks.