0
votes
1answer
119 views

Two-factor port-knocking via SMS (TXT)

It seems to me that a useful alternative or supplement to traditional port-knocking, fwknop, etc, for a system requiring only occasional access, would be to: Set up a one-time pad of keys, and a ...
5
votes
4answers
523 views

One time password over SMS - exposing the Authentication Server to the internet

Consider a Internet Based Website which does authentication. The Web Application can do the authentication by calling an Authentication Server which is not connected to the internet. The ...