CAPtive PORTal interaction
|Document||Charter||Captive Portal Interaction WG (capport)|
|Title||CAPtive PORTal interaction|
|IESG||Responsible AD||Barry Leiba|
|Charter edit AD||Barry Leiba|
|Send notices to||(None)|
Some networks require interaction from users prior to authorizing network access. Before that authorization is granted, network access might be limited in some fashion. Frequently, this authorization process requires human interaction to arrange for payment or to accept some legal terms. Currently, network providers use a number of interception techniques to reach a human user (such as intercepting cleartext HTTP to force a redirect to a web page of their choice), and these interceptions are indistinguishable from man-in-the-middle attacks. As endpoints become inherently more secure, existing interception techniques will become less effective or will fail entirely. This will result in a poor user experience as well as a lower rate of success for the Captive Portal operator. The CAPPORT Working Group will define secure mechanisms and protocols to - allow endpoints to discover that they are in this sort of limited environment, - provide a URL to interact with the Captive Portal, - allow endpoints to learn about the parameters of their confinement, - interact with the Captive Portal to obtain information such as status and remaining access time, and - optionally, advertise a service whereby devices can enable or disable access to the Internet without human interaction. (RFC 7710 may be a full or partial solution to the first two bullets) The working group may produce working documents to define taxonomy and to survey existing portals and solutions. These might or might not be published as RFCs, and might or might not be combined in some way. Out of scope are "roaming" (federation of credentials), network selection, or the on-boarding/provisioning of clients onto secure (or any alternate) networks. These are not really captive portals, and have largely been solved in other ways. Initially, the working group will focus on simplifying captive portal interactions where a user is present. A secondary goal is to look at the problem posed to or by devices that have little or no recourse to human interaction.