Description
The reality is that no other security technology provides long term transaction authentication. There are plenty of simple access control alternatives, but the Australian Govt Authentication Framework for instance allows only PKI digital signatures for document authentication. NIST says that the “only practical solution [to Man in the Middle attack and web fraud] today uses PKI”. So there is no better option than PKI for the sorts of high risk, long life, multiparty transactions typical of the health sector, business banking, trade documentation, property conveyancing, engineering certification and so on.
