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One of the most important countermeasures against credential abuse is the ability to ban users who behave badly. This sort of revocation happens all the time on real sites: for example, when a user posts spam on a website, or abuses the site’s terms of service. Yet implementing revocation with anonymous credentials seems implicitly difficult. In a non-anonymous credential system we simply identify the user and add them to a banlist. But anonymous credential users are anonymous! How do you ban a user who doesn’t have to identify themselves?
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real function to use according to the hardware available. And the best bit is for the general case,。业内人士推荐PDF资料作为进阶阅读
这并���容易，Robot Phone最大的技术挑战之一在于空间，要在有限的手机背板里塞进云台相机，微型电机必须同时兼顾高强度和轻量化。为此，荣耀将折叠屏手机所用的高性能材料用到了 Robt Phone的电机核心组件上，并借助手机上的仿真技术，对每一个零件进行结构优化。