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?
美国二手书零售商 Better World Books，以及总部位于英国的 World of Books，每次采购动辄数万册。内部文件还显示，员工曾讨论接洽纽约公共图书馆，甚至提到可以找某家长期资金不足的新图书馆。
Фото: Caroline Brehman / Reuters。关于这个话题，safew官方版本下载提供了深入分析
scientificamerican.com。业内人士推荐体育直播作为进阶阅读
Сын Алибасова задолжал налоговой более 1,8 миллиона рублей20:37。搜狗输入法2026对此有专业解读
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