encrypt.SseCustomerKeyMD5:    true,
}

// checkPostPolicy - apply policy conditions and validate input values.
// Note that content-length-range is checked in the API handler function PostPolicyBucketHandler.
// formValues is the already-canonicalized form values from the POST request.
func checkPostPolicy(formValues http.Header, postPolicyForm PostPolicyForm) error {

		// PostPolicy
		router.Methods(http.MethodPost).
			MatcherFunc(func(r *http.Request, _ *mux.RouteMatch) bool {
				return isRequestPostPolicySignatureV4(r)
			}).
			HandlerFunc(s3APIMiddleware(api.PostPolicyBucketHandler, traceHdrsS3HFlag))
		// DeleteMultipleObjects
		router.Methods(http.MethodPost).
			HandlerFunc(s3APIMiddleware(api.DeleteMultipleObjectsHandler)).
			Queries("delete", "")
		// DeleteBucketPolicy