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根证书过期有什么影响?

您可能听说过最近的根证书过期问题,该问题影响了大量网站。根证书是证书链的必要组成部分,但当需要替换时,会影响整个证书链。正如树根为树叶和树枝提供生命一样,根证书也是证书链的基础。


什么是根证书?

在信任链中,根证书是第一个链接。与其他证书不同,它是自签名的,这意味着颁发者和主体是相同的。它是一种X.509证书,可以用来颁发其他证书。证书颁发机构(CA)遵守严格的要求,以获得拥有根证书的信任。与中间证书相比,根证书通常也有很长的有效期。它们通常会持续10年或20年,这给了它们足够的时间为到期做准备。然而,在切换到新的根证书的过程中仍然可能会出现一些问题。


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修复由于根证书过期而导致的错误

当根证书过期时,即使您有新的根证书,操作系统也可能将该证书标记为无效。您可以通过删除过期的根证书来解决此问题。




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