Method and system for media content transmission based on CDN (Content Distribution Network) and P2P (Peer to Peer) converged infrastructure

Abstract

The invention discloses a method and a system for media content transmission based on a CDN (Content Distribution Network) and P2P (Peer to Peer) converged infrastructure, belonging to the field of multimedia communication. The method comprises the steps: a source server uploads stored media contents to all CDN network nodes at first; all CDN network nodes segment received media contents and respectively sign and store the media content segments; the CDN network nodes extract the media content segments from the specific CDN network nodes according a content request of a user terminal and transmit the media content segments after the media content segments are fragmented; and the user terminal splices the received content fragments into a content segment and carries out signature verification on the CDN network nodes and the spliced media content segment through a CA (Certificate Authority) certificate chain. The method disclosed by the invention has the advantages of guaranteeing the content privacy in a transmission process and data completeness and preventing the contents from artificial manipulation and damage, and meanwhile, a segmented signature manner is favorable for reducing the quantity of fragments to be retransmitted when transmission errors occur, so that flow waste is reduced.

Description

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AI Technical Summary

Benefits of technology

The technology described in this patented allows for securely delivering multimedia files over networks like DSL or cable TV without compromising their security measures such as encryption key management techniques. It also ensures users are only able access specific parts of these documents while still keeping them private. Additionally, it supports quicker-forward feature on mobile devices with faster speed capabilities than traditional methods.

Problems solved by technology

Technological Problem addressed in this patents relating to improving Content Delivery Service Protocol Overall, existing methods such as CDN require significant amounts of storage space and communication capabilities while also being vulnerable to attacks caused by hackers.

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