Abstract: Server-side determination of quality of service received by a client. Content is transmitted from the server to the client according to a protocol. During transmission, the protocol requires the client to periodically send the server statistics concerning the transmitting, e.g., lost packets, latency, or the like. The server simulates the network connection between the client and server based at least in part on the received statistics. The simulating allows the server to recreate, server-side, the content received by the client. The server may then compare what was sent to the client, versus the recreated received content, to determine a quality of service received by the client.

Abstract: Encryption and decryption may be tied to physical location information, e.g., GPS or other position data. Decryption keys may be defined with respect to a location at which decryption is to occur. A clock may be used to ensure decryption is occurring at a desired decryption location. For security, names may be associated with GPS position data, where encrypted data and a name associated with position data may be provided to a recipient, and the recipient is required to know or have access to the position data associated with the name in order to compute a decryption key. For additional security, encryption may also be performed with respect to position data for an encryption location, where an identifier associated with the encryption location is provided to the recipient, and the recipient is required to know or have access to the position data associated with the second name. Other embodiments are disclosed.

Abstract: A manifest is created that represents a created work in electronic form. The manifest may reference multiple digital resources that together make up the good, as well as related resources not originally a part of the good. For example, an electronic version of a music album may include image files for the cover art, audio files for the songs, and text files for the lyrics. The manifest may include structured meta-data to facilitate finding, obtaining, exchanging the digital content. The manifest and referenced content may have associated meta-data describing, for example, manifest contents or distribution rules. A receiver of the manifest may apply global and/or user rules or policies to meta-data to determine what portions of the manifest, if any, comply thereto, and to edit or delete the manifest accordingly.