Authenticating a Request When Using HTTP 1.0 Authenticating a Request When Using HTTP 1.0 For HTTP 1.0, to authenticate an HTTP request, set the Username and Password properties of the instance of %Net.HttpRequestOpens in a new tab. The instance then creates the HTTP Authorization header based on that username and password, using the Basic Access Authentication (RFC 2617Opens in a new tab). Any subsequent request sent by this %Net.HttpRequestOpens in a new tab will include this header. Important: Make sure to also use SSL (see Using SSL to Connect). In Basic authentication, the credentials are sent in base-64 encoded form and thus can be easily read.