S-HTTP

box below; please type legibly), or of course your politically-incorrect- substance ordering system, which should provide anonymity as well as payment and ordering, (which may be beyond the complexity of S-HTTP.)

What precisely would be the point of anonymously ordering PIS's (I like that name!)? You'd need some mechanism for anon delivery of physical goods, unless of course what was transmitted was a recipe and your computer was hooked up to a organic synthesis lab.