New answers tagged certificate
I think this Apple support article has the list you're looking for: iOS 7: List of available trusted root certificates And StartCom is on there.
downloaded and created the USB over 10 times with the same error, then found this simplest solution of all, http://www.youtube.com/watch?v=rvd1D1291R0
Should I worry about this? You should always distrust SSL connections that are using expired certificates. This could indicate a simple oversight on the part of the website operator or it could indicate a malicious attempt to intercept encrypted communications between the website and your browser. Heed your browser's warnings and don't load the page ...
I finally solved the issue by opening the web sites that misbehaved, one at a time, in Safari. From there you proceed to trust each and every certificate. They are then re-added to your keychain. More can be found in this KB. I'd like to thank @bmike for doing his best to assist. Restoring from backup would probably work (if I had one - silly me).
Restore the contents of these three directories from a recent backup: ~/Library/Keychains /Library/Keychains /System/Library/Keychains On my system this comprises 18 files and a subdirectory in the user folder ~/Library/Keychains
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