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.
如果你觉得不好理解，可以类比一下欧洲历史上的天主教与新教之争 (AP Euro Unit 2: Reformation)，只是它更惨烈，因为它从第一天起就伴随着政治暗杀和战争。
，这一点在91视频中也有详细论述
A police spokesperson previously said that the case was being investigated by its robbery-homicide division.
近日，经党中央同意，在全党开展树立和践行正确政绩观学习教育。
，推荐阅读Safew下载获取更多信息
MacBook Pro was built with the environment in mind, and brings Apple even closer to reaching its ambitious plan to be carbon neutral across its entire footprint by 2030. It is made with 45 percent recycled content,8 including 100 percent recycled aluminum in the enclosure and 100 percent recycled cobalt in the battery. It is manufactured with 50 percent renewable electricity, such as wind and solar, across the supply chain. The new MacBook Pro is designed to be durable and repairable, and also offers industry-leading software support, while meeting Apple’s high standards for energy efficiency and safer chemistry. The paper packaging is 100 percent fiber-based and can be easily recycled.9
国家鼓励和支持先进核反应堆的应用。，详情可参考WPS下载最新地址