「防窥膜」就是很多人的刚需，即使贴防窥膜会影响屏幕显示效果，他们也依然会选择贴上去。
One of the most important countermeasures against credential abuse is the ability to ban users who behave badly. This sort of revocation happens all the time on real sites: for example, when a user posts spam on a website, or abuses the site’s terms of service. Yet implementing revocation with anonymous credentials seems implicitly difficult. In a non-anonymous credential system we simply identify the user and add them to a banlist. But anonymous credential users are anonymous! How do you ban a user who doesn’t have to identify themselves?
。电影对此有专业解读
"We're building little kits that are based on urine that actually allow you to go to your GP and have it done, or even do it at home."，推荐阅读WPS下载最新地址获取更多信息
Related internet linksTrust for London。关于这个话题，电影提供了深入分析