Home » Ios » This certificate has an invalid issuer : Keychain marks all certificates as “Invalid Issuer” [duplicate]

This certificate has an invalid issuer : Keychain marks all certificates as “Invalid Issuer” [duplicate]

Posted by: admin November 30, 2017 Leave a comment

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Answers:

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.

-> After deleting the expired cert from the login and System keychains,download certificate from below link and open with keychain.

Download https://developer.apple.com/certificationauthority/AppleWWDRCA.cer and add it to Keychain access > certificates (which expires on 2023)