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基于OCR难题的平面静态可视化验证码以其在实现和操作方面的优势成为了目前CAPTCHA技术应用的主流形式。然而,随着各种有针对性的文字分割技术的出现,这种基于OCR难题的验证码的安全性受到越来越严重的威胁,用这种方法所保护的网络服务系统正在越来越多地被bots程序攻击。目前迫切需要一种既能够提高验证码的安全性,又能够保持实用性的新型CAPTCHA验证码。该课题拟在运动对象识别难题上,构建一种动画验证码,使得攻击者只有在有效解决运动对象识别难题后,才能通过该动画验证码的测试进而登录服务系统。该课题所提出的设计思路将会在CAPTCHA研究领域开辟一个新的研究方向。此类动画验证码将能够杜绝所有静态OCR技术的攻击,并能够抵抗过去所有的对于运动物体检测的攻击。
Based on the OCR puzzle flat static visual verification code for its implementation and operation of the advantages has become the mainstream of CAPTCHA technology applications. However, with the emergence of various targeted text segmentation technologies, the security of such OCR-based verification codes is becoming more and more serious, and more and more network service systems are being protected by this method Bots program to attack. There is an urgent need for a new CAPTCHA CAPTCHA that can both improve the security of the CAPTCHA and maintain its practicability. The subject intends to construct a kind of animation verification code on the object recognition problem of the moving object so that the attacker can log in the service system only after testing the animation verification code only after effectively solving the recognition problem of the moving object. The design ideas proposed in this topic will open up a new research field in CAPTCHA research. Such animated captchas will eliminate all static OCR attacks and resist all previous attacks on moving object detection.