It is not listed in a certificaterevocationlist (CRL), which ensures that past subscribers (in other words, those that are no longer customers but were at some time in the past) are denied service.
Revocation in this case must be based on the cryptographic fingerprint of the certificate, and the mechanism that provides this functionality is a certificaterevocationlist (CRL).
在此情况下，撤销必须基于该证书的加密指纹，而提供此功能的机制就是证书撤销列表(CRL)。
3
It researches and discusses the certificateRevocationListCRL method, which is also used to query the certificate revoked status and compares the advantages and disadvantages of each other.