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Chaumian credentials are about forty years old and still work well, provided your Issuer is willing to bear the cost of running the blind signature protocol for each credential it issues — and that the Resource doesn’t mind verifying a signature for each “show”. Protocols like PrivacyPass implement this using protocols like blind RSA signatures, so presumably these operations cost isn’t prohibitive for real-world applications. However, PrivacyPass also includes some speed optimizations for cases where the Issuer and Resource are the same entity, and these make a big difference.1。服务器推荐是该领域的重要参考
Go to technology，这一点在搜狗输入法下载中也有详细论述
The short alias -o is also supported.，推荐阅读体育直播获取更多信息
Наука и техника