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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.，详情可参考币安_币安注册_币安下载
，这一点在heLLoword翻译官方下载中也有详细论述
This is the problem with u/fermaw’s “DRM.” No matter how many clever keys, nonces, and encrypted file formats he attempts to send to the user, eventually, the very same JavaScript code will need to exit his decryption logic and—whoops—it goes plain Jane into digital and straight to the speakers.。关于这个话题，safew官方下载提供了深入分析
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