HMAC encode function for FoxyCart

hmacEncode.cfm

<cffunction name="hmacEncode" returntype="string" output="false">
	<cfargument name="sku"   required="true" />
	<cfargument name="name"  required="true" />
	<cfargument name="value" required="true" />

	<cfset var stringToHash = arguments.sku & arguments.name & arguments.value />
	<cfset var apiKey       = "YOUR_API_KEY_HERE" />
	<cfset var hashedString = hmac( stringToHash, apiKey, "HMACSHA256" ) />

	<cfreturn lcase( hashedString ) />
</cffunction>