hash_hmac in erlang

Question

I want to know, is there any way to achieve hash_hmac("sha256", $token, $signkey, true) (php) in erlang?

Answer 1

Look at http://erlang.org/doc/apps/crypto/index.html

Answer 2

I just googled this

Looks like Sha256 is missing from erlang base libraries, but the author on the blog hand coded an implementation.