Abstract: The subject disclosure relates to dynamic composition including the ability to create interoperable combinations of content by the publisher, e.g., determined to be an optimal combination, and offer such combinations to client devices in an interoperable way to allow simple selection by devices without complex programming, web pages, etc. specific to each device. Compositions are dynamic in that new audio, video, subtitle, etc. tracks can be added to a given composition without changing any of the other tracks, e.g., by updating the composition's extensible markup language (XML), and new compositions can be created or removed at any time without changing any audio or video files. Interoperable and scalable “discovery” is also enabled whereby random devices can contact a Web server, find and play a composition matched to the given devices and users, e.g., optimal composition for a given device and user.

Abstract: The subject disclosure relates to dynamic composition including the ability to create interoperable combinations of content by the publisher, e.g., determined to be an optimal combination, and offer such combinations to client devices in an interoperable way to allow simple selection by devices without complex programming, web pages, etc. specific to each device. Compositions are dynamic in that new audio, video, subtitle, etc. tracks can be added to a given composition without changing any of the other tracks, e.g., by updating the composition's extensible markup language (XML), and new compositions can be created or removed at any time without changing any audio or video files. Interoperable and scalable “discovery” is also enabled whereby random devices can contact a Web server, find and play a composition matched to the given devices and users, e.g., optimal composition for a given device and user.

Abstract: A congestion controller for a media server monitors both the buffer status of the client device as well as the network performance. The congestion controller may increase or decrease the pacing of packets transmitted over the network based on the fullness of a buffer on the client device, but may also change the bit rate of the packets based on the network performance. By monitoring both the client device status and network performance, the pacing and bit rate of the packets may be varied together to achieve an optimized throughput and maximized user experience of the media.

Abstract: Providing presence tracking of nodes of a logical network in a distributed computing system. Each node in a logical network tracks the presence of all other nodes on the network. This presence information is used by the protocol to optimize bandwidth utilization of the shared physical media, by not attempting to communicate with a device that does not appear to be or is unlikely to be present. In one embodiment, the presence tracking is applied to a power line carrier (PLC) physical media because of PLC's low-bandwidth characteristics, low baud rate characteristics and the widespread usage of plugged-in devices, the presence of which on the network is generally more transient by nature.

Abstract: A process for establishing secure mutual trust includes generating a one-time-password. The one-time-password is transferred between the devices in a communication occurring off of the network. Each device generates a set of authenticators by hashing a plurality of sub-strings of the password and the device's authentication certificate with a respective set of nonces. The devices exchange the respective sets of authenticators. Each device then alternates revealing its respective set of nonces and its authentication certificate in a multi-stage process. The devices re-calculate the authenticators based upon the respective set of nonces and authentication certificate revealed by the other device along with the one-time-password sub-strings that it posses. If each device determines that the authenticators re-calculated by the given device matches the authenticators previously received from the other device, secure mutual trust is established.

Abstract: Described herein are techniques to facilitate the improvement of network throughput. An implementation described herein measures throughput over a data-communications network and between at least two endpoints on the network. This implementation also displays a graphical representation depicting the present throughput of the network as it is measured. The graphical representation has an identified target throughput threshold, and that threshold is indicative of an acceptable level of throughput for the usage being targeted, such as high-quality video streaming.

Abstract: Systems and methods for use in connection with the trusted transmission and reception of content, such as encryption key information, from one computing device in a network to a second computing device are provided. In one embodiment, the invention provides a way to trust or validate the transfer of a public key using a very short code entered out of band of the network that is easy for end-users to remember, or write down.

Abstract: Systems and methods for enabling secure dynamic credential distribution to a machine over a network are provided. In various embodiments, a computer, into which logging or access is sought, distributes logon credentials automatically to a requestor over the network before logon. Based on pre-existing trust, the computer self-generates and self-distributes logon credentials to the requestor, whereby the logon credentials are not stored on the requestor device.