ios 此证书的颁发者无效：钥匙串将所有证书标记为“无效颁发者”
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This certificate has an invalid issuer : Keychain marks all certificates as "Invalid Issuer"
提问by technerd
Keychain shows all the certificates as Invalid in my keychain suddenly, as it working before 2 days and i also check in Developer portal and it shows valid there. It marks each and every certificate in Keychain as "This certificate has invalid issuer". As message suggesting that it must be problem from issuer side and and our issuer is Apple. So how to fix it ?
钥匙串突然在我的钥匙串中显示所有证书为无效，因为它在 2 天前工作，我还检查了开发人员门户，它在那里显示有效。它将 Keychain 中的每个证书都标记为"This certificate has invalid issuer"。作为消息表明它一定是发行方方面的问题，而我们的发行方是 Apple。那么如何修复呢？
This certificate has an invalid issuer
此证书的颁发者无效
Here i posting image of keychain. I need quick help.
在这里我张贴钥匙扣的图像。我需要快速帮助。
回答by Uma Madhavi
In Keychain access, -> View -> Show Expired Certificates, then in your login keychain click on expired certificate and delete it. I also had the same expired certificate in my System keychain, so I deleted it from there too.
在钥匙串访问中，-> 查看 -> 显示过期证书，然后在您的登录钥匙串中单击过期证书并将其删除。我的系统钥匙串中也有相同的过期证书，所以我也从那里删除了它。
-> After deleting the expired cert from the login and System keychains,download certificate from below link and open with keychain.
-> 从登录和系统钥匙串中删除过期的证书后，从下面的链接下载证书并用钥匙串打开。
Download https://developer.apple.com/certificationauthority/AppleWWDRCA.cerand add it to Keychain access > certificates (which expires on 2023)
下载https://developer.apple.com/certificationauthority/AppleWWDRCA.cer并将其添加到钥匙串访问 > 证书（2023 年到期）
