Adversarial sample-based verification code generation system and method
A technology against samples and generating systems, which is applied in the fields of deep learning and information security, can solve problems such as high cost, high difficulty coefficient, and low user pass rate, and achieve the effects of security improvement, cost saving, and high security
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[0065] like figure 1 As shown, the verification code generation system based on adversarial samples in this embodiment includes: a verification code acquisition layer, a preprocessing layer, an adversarial sample generation layer, a sample splicing layer and a hybrid layer;
[0066] In the verification code collection layer, the verification code data is used as the training set of the neural network by collecting its own platform, using the verification code automatic generation tool, and the open source platform verification code data;
[0067] In the preprocessing layer, the collected verification codes are cut into a large number of black and white character pictures as the input of the neural network through the processes of grayscale, binarization, de-drying, and character segmentation;
[0068] The preprocessing layer includes a grayscale module, a binarization module, a denoising module and a character segmentation module; its specific flowchart is shown in Figure 4(a)...
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