Blockchain Data Transmission Security via Randomized Node Selection

The patent divides the authentication process into two segments: a simplified authentication for most data packets and a full authentication only for critical data packets. This segmentation allows the system to maintain security for important transactions while reducing computing overhead for routine operations, directly resolving the contradiction between security and energy consumption.

The patent introduces a parameter (data packet importance level) that changes the authentication requirements. By dynamically adjusting the authentication intensity based on the importance level of each data packet, the system achieves both high security for critical data and low computing consumption for non-critical data, resolving the contradiction between reliability and energy use.

The patent segments the authentication workload by introducing multiple authentication centers that handle different types of authentication requests simultaneously. This parallel processing approach maintains security through distributed verification while reducing system delay by eliminating the single-point bottleneck, directly addressing the contradiction between reliability and time loss.

The patent introduces authentication centers as intermediary entities that mediate between node devices and the blockchain network. These intermediaries batch process authentication requests and perform verification operations, reducing the direct communication overhead between all node devices and thereby decreasing network congestion and system delay while maintaining security.