Terminal device identification method being resistant to browser fingerprint change

Abstract

The invention provides a terminal device identification method being resistant to browser fingerprint change. The invention includes I extracting a fingerprint generation scheme of forming the fine grain by means of multi-attribute features by filtering the redundant attributes and segmenting the coarse-grained attributes; II constructing the corresponding Bayesian network structure and performing parametric learning according to the mutual relation between the fingerprint attributes; and III performing fingerprint coupling classification on the unknown equipment and feeding back the result. By analyzing and filtering the relative attributes, the plurality of fine-grained attributes are extracted to form the browser fingerprint, and moreover, the mutual relation between the attributes is inferred according to the fingerprint change condition, a corresponding Bayesian network is constructed, so that the accurate identification of the terminal device under the finger change condition can be realized.

Description

[0001] Technical field: [0002] The invention relates to a terminal device identification method against browser fingerprint change, belonging to the technical field of terminal identification. [0003] Background technique: [0004] Terminal device fingerprint identification technology refers to an attack technology that identifies the identity of the terminal device by collecting various valid information, wherein the valid information includes the hardware information, operating system information, and network protocol parameter information of the terminal device. For example, devices can be identified based on Mac addresses, IP addresses, etc., but such methods are easily circumvented, and simply altering and masquerading these address information can render the unique identifier information invalid. At present, the common terminal device fingerprint identification technology mainly infers the parameter information of the TCP / IP protocol stack according to the response mes...

AI Technical Summary

Problems solved by technology

However, in fact, it is very common for browser fingerprints to change. For example, regular browser upgrade operations will cause changes in multiple attribute values. Variety

In view of this situation, the existing fingerprint matching method can only know that some attribute values ​​have changed, but cannot measure the degree of change. To a large extent, the changed fingerprint will be recognized as a fingerprint of a new device, which is robust. Poor performance, which greatly reduces the practical feasibility of the technology

[0009] To sum up, the current mainstream terminal device identification technology based on browser fingerprints cannot handle fingerprint changes well, and even some minor changes by users will cause fingerprint matching to fail.

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