Crypto.HMAC.digest sha256 "key" "The quick brown fox jumps over the lazy dog"
--> "f7bc83f430538424b13298e6aa6fb143ef4d59a14946175997479dbc2d1a3cd8"
Crypto.HMAC.digest sha512 "key" "I ❤ cheese"
--> "a885c96140f95cb0b326306edfba49afbb5d38d3a7ed6ccfd67153429cbd3c56d0c514fcaa53b710bb7ba6cc0dfedfdb4d53795acbeb48eb23aa93e5ce9760dd"
HMAC SHA256 digest.