Carpool (web series) that occurred. At London Film and Comic Con in July 2009, Danny John-Jules mentioned that RDF Productions (the production company behind "Scrapheap Challenge") had commissioned Carpool for broadcast and that Llewellyn is re-shooting a number of episodes in high-definition video for broadcast. On 30 June 2010, it was announced that new shows will appear on the UKTV channel, Dave, as well as still appearing online after broadcast and that the format of the show will remain unchanged. Carpool (web series) Carpool is a web series presented by English actor and comedian Robert Llewellyn. In each episode he interviews a guest
Challenge–response authentication Challenge–response authentication In computer security, challenge–response authentication is a family of protocols in which one party presents a question ("challenge") and another party must provide a valid answer ("response") to be authenticated. The simplest example of a challenge–response protocol is password authentication, where the challenge is asking for the password and the valid response is the correct password. Clearly an adversary who can eavesdrop on a password authentication can then authenticate itself in the same way. One solution is to issue multiple passwords, each of them marked with an identifier. The verifier can ask for any of the passwords, and