Certificate: a public key with some information attached about the identity of its owner and, optionally, the signatures of third parties confirming this identity.

证书：附带了某些有关其所有者身份信息的公钥；可选地，该信息为确认此身份的第三方的签名。

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Workaround: There is no workaround if the site's certificate is expired; contact the site owner and request that they update the certificate.

处理：如果站点的证书已过期，则没有处理方法。联系站点的所有者，并要求他们更新证书。

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Browsers and other security applications using digital certificates can verify that the certificate has not been revoked by either the owner or the ca.

浏览器和其他使用数字证书的程序都可以验证这个证书已经被其属主或CA撤销了。

youdao

Depending on your browser, websites with SSL certificates will have a padlock icon or your address bar will change color and users can click on the padlock icon to verify the identity of the certificate owner.

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Under current law, insurance companies must issue a paper and electronic certificate when agreeing a policy with a vehicle owner.

BBC: Tax disc

According to this article a Louisiana tax lien certificate will give you a nice rate of interest if the owner pays the delinquent real estate tax.

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