Broadcast encryption transmission method in network based on identification and centering on contents

Abstract

The invention discloses the technical field of network data transmission safety centering on contents and discloses a broadcast encryption transmission method in a network based on identification and centering on the contents. A content provider requests user identification through a broadcast interest package, a user can send identification information ID representing a public key to the content provider, the content provider uses a broadcast encryption algorithm based on the identification to encrypt plaintexts and then broadcasts the user, only a target user in user collection can decode the obtained plaintext contents, and the user collection can be composed of any user. When the user collection only has one user, a protocol is an end-to-end encryption transmission protocol. When the user collection has multiple users, the protocol is a broadcast encryption transmission protocol, and times of broadcast content encryption transmission are reduced. The method can enable the user identification to be added into the user collection to achieve content access controlling, and achieves data source authentication, data integrality and confidentiality protection based on an autograph of the identification and a broadcast encryption scheme.

Description

technical field [0001] The invention belongs to the content-centered network data transmission security technical field, in particular to an identity-based broadcast encryption transmission method in the content-centered network. Background technique [0002] The current Internet is established based on the TCP / IP architecture, which assumes that users and terminals are trustworthy, and the network only provides best-effort packet forwarding services. This initial Internet design goal of host interconnection and resource sharing makes the Internet fast develop. With the increasing variety of applications and computing models and the increasing dependence of society on the Internet, Internet access methods and network function positioning have undergone tremendous changes. , dynamics and security controllability and other aspects present unsolvable problems. In order to fundamentally solve these problems, researchers redesign the future Internet architecture and propose an ...

AI Technical Summary

Problems solved by technology

However, the content-centric network is oriented towards the transmission of information and content, and the terminal devices can transmit data without establishing a connection. Therefore, similar encryption protocols in current networks such as IPSec cannot be used for data transmission protection.

At the same time, users in the content-centric network store the transmitted data, and IPSec cannot support the integrity or confidentiality protection of data stored in the network

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