Solidot: Google更新reCAPTCHA验证码，降低对人类的难度

Solidot

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Google更新reCAPTCHA验证码，降低对人类的难度
http://solidot.org.feedsportal.com/c/33236/f/556826/s/32f1f331/sc/28/l/0L0Ssolidot0Borg0Cstory0Dsid0F36977/story01.htm
Oct 26th 2013, 14:23


Google官方博客宣布更新reCAPTCHA验证码系统，降低对人类的难度同时增加对机器人程序的难度。Google没有解释技术实现细节，只是称它使用了先进的风险分析技术，综合考虑用户与reCAPTCHA互动的整个过程——它将全面分析接触前、接触期间和接触后用户的活动。需要眯着眼靠贴着屏幕仔细打量的扭曲字符给人类带来了许多麻烦，也是reCAPTCHA验证码系统最受争议的地方。新的技术将让人类的生活变得更容易一点。上图就是新系统的简单版本。
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