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今天我自己项目里用到的验证码是自己封的,思考了一下,如果严格来讲,校验验证码要有多个参数,1、验证码值;2、场景标志;3、用户信息标志;4、验证码token;5、过期时间;如果生成了不被立即用来验证,攻击者拿着这些验证码会有拍腿惊呼的神奇空子可钻。但是,图片验证码意义不大,这种思考更多的是手机短信验证码的验证思路,手机验证短信对安全要求是很高的,图片验证码只是防止机器人而已,图像识别能破你一张跟破你一万张没有区别。
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