Certificate chain

最新推荐文章于 2024-03-14 17:37:52 发布

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本文解释了如何使用证书链来获取根CA证书的过程。当接收另一实体的证书时，可能需要通过证书链验证该证书。证书链从目标实体的证书开始，每个证书由下一个证书所标识的实体签名，直至到达根CA证书。

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How certificate chains work

When you receive the certificate for another entity, you might need to use a certificate chain to obtain the root CAcertificate. The certificate chain, also known as the certification path, is a list of certificates used to authenticate an entity. The chain, or path, begins with the certificate of that entity, and each certificate in the chain is signed by the entity identified by the next certificate in the chain. The chain terminates with a root CA certificate. The root CA certificate is always signed by the CA itself. The signatures of all certificates in the chain must be verified until the root CA certificate is reached. Figure 1 illustrates a certification path from the certificate owner to the root CA, where the chain of trust begins.

Figure 1. Chain of trust