Abstract: Various examples are directed to systems and methods for establishing a secure, authenticated connection between devices utilizing a password authenticated key exchange. A client may send an encrypted connection request message to a server via a first communication medium. The server may send the client first data token data via a first communication medium. The client may encrypt the first data token with a password-authenticated key, for example, obtained in a password authenticated key exchange with the server. The client may encrypt the first token data based at least in part on the password-authenticated key to generate a message authentication code (MAC). The client may send the MAC to the server.

Abstract: A system for registering an input-limited device such as a media player with a captive access point that requires completion of a portal web page prior to allowing client devices access to a network such as the Internet. Such captive access points are commonly found in hotels, and may be used for both freely provided public WiFi and for connections that require providing payment. For registration, the input-limited device operates as a proxy, relaying communications with the captive access point back-and-forth to a second device with rich user-input capabilities via an independent communications channel. Registration information is provided to the access point as though it originated with the media player, allowing the media player to acquire access to the network.

Abstract: A system for registering an input-limited device such as a media player with a captive access point that requires completion of a portal web page prior to allowing client devices access to a network such as the Internet. Such captive access points are commonly found in hotels, and may be used for both freely provided public WiFi and for connections that require providing payment. For registration, the input-limited device operates as a proxy, relaying communications with the captive access point back-and-forth to a second device with rich user-input capabilities via an independent communications channel. Registration information is provided to the access point as though it originated with the media player, allowing the media player to acquire access to the network.