|-
| width='90' | '''Signatures'''
|{{Func|crypto:hmac|$message as xs:string, $secret-key as xs:string, $algorithm as xs:string|xs:string}}<br/>{{Func|crypto:hmac|$message as xs:string, $secret-key as xs:string, $algorithm as xs:string, $encoding as xs:string|xs:string}}
|-
| '''Summary'''