I appreciate the info, it would be really helpful if you had a definitive list of what is supported. Can you confirm this from your API user guide as the list of supported MACs:
HMAC-MD5, HMAC-MD5-96, HMAC-SHA1, HMAC-SHA1-96, HMAC-SHA2-256, HMAC-SHA2-512
Is there any plan to add HMAC-SHA256?