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
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人 民 网 版 权 所 有 ，未 经 书 面 授 权 禁 止 使 用。业内人士推荐WPS下载最新地址作为进阶阅读
Фото: MOD Russia / Global Look Press
第六十七条 托运人应当按照海上货物运输合同的约定将货物交付承运人运输，并保证交付运输的货物适于约定的运输。