MivaScript Builtin Function, Miva Merchant 9+
crypto_hmac_sha256( buffer var, key, format, result var )
<mvt:assign name="g.return_value" value="crypto_hmac_sha256( buffer var, key, format, result var )" />
Calculates an HMAC SHA-256 (Hash-based Message Authentication Code) of buffer
buffer var
value to hash
key
binary key to use to calculate the hmac
format
"binary" or "hex"
result var
a variable used to store the results.