Resources Contact Us Home
Inter-server communication using request with encrypted parameter

Image Number 6 for United States Patent #6970849.

A server architecture for a digital rights management system that distributes and protects rights in content. The server architecture includes a retail site which sells content items to consumers, a fulfillment site which provides to consumers the content items sold by the retail site, and an activation site which enables consumer reading devices to use content items having an enhanced level of copy protection. Each retail site is equipped with a URL encryption object, which encrypts, according to a secret symmetric key shared between the retail site and the fulfillment site, information that is needed by the fulfillment site to process an order for content sold by the retail site. Upon selling a content item, the retail site transmits to the purchaser a web page having a link to a URL comprising the address of the fulfillment site and a parameter having the encrypted information. Upon following the link, the fulfillment site downloads the ordered content to the consumer, preparing the content if necessary in accordance with the type of security to be carried with the content. The fulfillment site includes an asynchronous fulfillment pipeline which logs information about processed transactions using a store-and-forward messaging service. The fulfillment site may be implemented as several server devices, each having a cache which stores frequently downloaded content items, in which case the asynchronous fulfillment pipeline may also be used to invalidate the cache if a change is made at one server that affects the cached content items. An activation site provides an activation certificate and a secure repository executable to consumer content-rendering devices which enables those content rendering devices to render content having an enhanced level of copy-resistance. The activation site "activates" client-reading devices in a way that binds them to a persona, and limits the number of devices that may be activated for a particular persona, or the rate at which such devices may be activated for a particular persona.

  Recently Added Patents
Image forming apparatus having exhaust fan
Integrated bug tracking and testing
Protein kinase C inhibitors and uses thereof
Image reading apparatus, image reading method and program
Reducing energy and increasing speed by an instruction substituting subsequent instructions with specific function instruction
Heat retaining device
Socket type MEMS device with stand-off portion
  Randomly Featured Patents
System for automatically dispatching taxis to client locations
Programmable printer controller with multiline buffering and overstrike feature
Oil pressure rush adjuster of a directly acting type
Sewing machine and means for transporting workpieces therein
Portable phone
Ink jet recording head and method of producing a plate member for an ink jet recording head
Probes and primers for detection of bacterial pathogens and antibiotic resistance genes
Hanger for wrench
Electro-acupuncture method using an electrical stimulator
Method and apparatus for home dialysis