Untrusted certificates in Keychain

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Dec 20, 2010
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Hey,

For months I've had these two certificates in the System Keychain:

com.apple.systemdefault
com.apple.kerberos.kdc

Both are 'self-signed root certificates' which are labelled 'untrusted'.

Today when I installed Windows Live Mesh it wouldn't let me finish the installation without allowing it access to the login Keychain. When I eventually allowed it, it inserted a Root certificate by the 'Root certificate authority' which is also labelled 'untrusted':

Token Signing Public Key

(Actually there are two copies, but that could be because I re-installed the program it after it didn't seem to work first time.)

And a Standard certificate named with a string of random letters and numbers, 'Issued by: Token Signing Public Key', which is naturally untrusted as well.

Are these anything to be concerned about?

I've attached them for inspection.

View attachment Certificates to check.zip
 

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