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User profile for user: Homer Emodeler 
Homer Emodeler Author
User level: Level1 68 points
In my login keychain, I have many expired com.apple.idms.appleid.prd certificates... followed by one that says it is valid, but has no root certificate. Apple Integration cert. says it has no root cert. either. Is this right?
Mac mini (Late 2014), macOS High Sierra (10.13)
Posted on Oct 30, 2017 9:05 PM
Question marked as Top-ranking reply
User level: Level9 64,690 points
Posted on Oct 30, 2017 9:39 PM
A certificate is an attachment to an electronic document that allows the safe transfer of information over the Internet. Certificates are used by web browsers, mail, and texting apps.
When you communicate with a secure site, the information exchanged with the site is encrypted. This protects your login information, credit card numbers, addresses, and other secure data.
In OS X, certificates are part of your digital identity and are stored in your keychain. Keychain Access lets you manage your certificates and keychains.
Select my certificates , Expired certificates can be viewed - view - show expired certificates .
See this article -
Keychain for Mac: Create self-signed certificates using Keychain Access
Root certificates are in system roots shown in screen shot under system roots - category - certificates .
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Question marked as Top-ranking reply
User level: Level9 64,690 points
Oct 30, 2017 9:39 PM in response to Homer Emodeler
A certificate is an attachment to an electronic document that allows the safe transfer of information over the Internet. Certificates are used by web browsers, mail, and texting apps.
When you communicate with a secure site, the information exchanged with the site is encrypted. This protects your login information, credit card numbers, addresses, and other secure data.
In OS X, certificates are part of your digital identity and are stored in your keychain. Keychain Access lets you manage your certificates and keychains.
Select my certificates , Expired certificates can be viewed - view - show expired certificates .
See this article -
Keychain for Mac: Create self-signed certificates using Keychain Access
Root certificates are in system roots shown in screen shot under system roots - category - certificates .
Link
has many expired certificates in my keychain
