Picture validation code generating method and device

A picture verification code and verification code technology, applied in the field of picture verification code generation, can solve the problems of high risk of being cracked and low security, and achieve the effect of improving the ability to resist cracking and increasing the difficulty

Active Publication Date: 2010-06-09
SHENZHEN TENCENT COMP SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the current picture verification code generation method that generates a static picture format, a malicious user can easily pull the entire verification code picture containing all characters through a machine program, and then use cracking methods such as character segmentation to extract information from the background noise. Extract all the characters, so that the picture verification code can be cracked
[0006] Therefore, the current method of generating image verification codes has a high risk of being cracked and is not very safe.

Method used

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  • Picture validation code generating method and device
  • Picture validation code generating method and device
  • Picture validation code generating method and device

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0022] The method provided by the embodiment of the present invention is: performing displacement processing on the static picture containing the text information of the verification code to obtain at least two moving result pictures, and the displacement is to move the position of the text information of the verification code in the picture; using at least two moving results Picture, generate a dynamic picture, and use the dynamic picture as a picture verification code. image 3 It is an example flow chart of the method for generating a picture verification code adopted in the present invention. like image 3 As shown, it specifically includes the following steps:

[0023] Step 301: Perform displacement processing on the static picture containing the t...

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PUM

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Abstract

The invention discloses a generating method for image checking codes, and a generating device for image checking codes. The generating method comprises following steps: after a static image comprisingtext information of checking codes is displacement processed, at least two shifted images can be obtained, and the displacement means shift of position where the text information of checking codes ispositioned in the image; the two shifted images are used for generating a dynamic image, and the dynamic image is then used as image checking codes. The invention has an advantage of improvement in anti-decryption capacity of image checking codes.

Description

technical field [0001] The invention relates to the field of computers, in particular to a method and device for generating a picture verification code. Background technique [0002] With the development of network services, some people will use "robot programs" to use a large number of free resources on the network, which will greatly reduce server performance, such as mass spam, etc.; "In order to achieve the purpose of paralyzing the service; some people also use program means such as brute force cracking to carry out virtual property theft and so on. Therefore, image verification codes are more and more widely used as identification tools for distinguishing whether network service users are programs or human beings. [0003] A picture verification code is a picture containing characters or numbers. The characters or numbers in this picture are usually distorted or added with some noise on the premise of ensuring human visual recognition, so as to increase the difficulty...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/32G06T13/00G06T3/20G06T13/80
Inventor 王亮王建宇
Owner SHENZHEN TENCENT COMP SYST CO LTD
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