Chaum’s idea was to break the linkage between the issuance and usage of a credential. This means that when Alice shows her credential to the website, all the site learns is that Alice has been given a valid credential. The site should not learn which issuance flow produced her the credential, which means it should not learn her exact ID; and this should hold even if the website colludes with (or literally is) the issuer of the credentials. The result is that, to the website, at least, Alice’s browsing can be unlinked from her identity. Imn other words, she can “hide” within the anonymity set of all users who obtained credentials.
合家欢喜剧电影《熊猫计划之部落奇遇记》发布「天黑请闭眼」正片片段，于洋饰演的部落王子图鲁召集众人，以抽签方式决定执行特殊任务的人选。看似公平的流程暗藏「小心机」。，这一点在体育直播中也有详细论述
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Фото: Пелагия Тихонова / РИА Новости
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