A content-centric network-based signature verification method, device and medium

Abstract

The invention discloses a signature verification method, device and medium based on a content-centric network. The steps of the method include: sequentially acquiring content data packets to be verified, and determining the signature information in the content data packets with a preset initial probability Compliance; whenever it is determined that there is a first preset value of non-compliant signature information, the initial probability is controlled to increase the first probability value as a new initial probability; whenever it is determined that there is a second preset value of non-compliant signature information When regulating the signature information, the initial probability is controlled to reduce the second probability value as the new initial probability; whenever the flow value of the network traffic changes, the corresponding control coefficient is generated, and the product operation of the control coefficient and the initial probability is performed Generate new initial probabilities. The method improves the avoidance effect on non-compliant data packets in the network, and can avoid network congestion. In addition, the present invention provides a content-centric network-based signature verification device and medium, and the beneficial effects are the same as those described above.

Description

technical field [0001] The present invention relates to the field of content-centric networks, in particular to a content-centric network-based signature verification method, device and medium. Background technique [0002] Content-centric network (CCN) is a future network that innovates the existing Internet TCP / IP architecture. The innovation point is that named data is used instead of named hosts. The reliability of data packet transmission in nodes depends entirely on the transmission of data packets. Therefore, in the content-centric network, there may be data packets carrying illegal signature information provided to other nodes. These unavailable data packets will occupy network bandwidth resources and reduce network performance when circulating in the network. . Furthermore, in order to ensure the reliability of data packet transmission and the overall network performance, it is necessary to verify the correctness of the signature information. [0003] At present, ...

AI Technical Summary

Problems solved by technology

However, since the number of non-compliant signatures in the network changes at any time, it is difficult to flexibly respond to changing network conditions by verifying signature information with a fixed probability. Therefore, there may be a large number of non-compliant signatures in the network, and the probability of signature verification is relatively low. In the case of small cases, the evasion effect on non-compliant data packets in the network is poor

It is also possible that the number of non-compliant signatures in the network is small, and the probability of signature verification is relatively high, which will waste computing resources in nodes

In addition, it is difficult to flexibly respond to changing network operation conditions by verifying signature information with a fixed probability, so it may intensify the resource occupation of core nodes and edge nodes in the case of large network traffic, thereby reducing the overall work efficiency of nodes, resulting in Network congestion makes it difficult to ensure the normal operation of the content-centric network

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