Thanks Vladi! It took me a little more digging to find that the following command dumps the cert in the expected format:
Code:
keytool -printcert -rfc -file somename.crt

Originally Posted by
vsch
Adding the CA cert to IDP metadata is a one-time operation with no maintenance. The metadata should look something like this:
Code:
<IDPSSODescriptor WantAuthnRequestsSigned="false" protocolSupportEnumeration="urn:oasis:names:tc:SAML:2.0:protocol">
..... other keys .....
<KeyDescriptor>
<ds:KeyInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
<ds:X509Data>
<ds:X509Certificate>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</ds:X509Certificate>
</ds:X509Data>
</ds:KeyInfo>
</KeyDescriptor>
......
Where the newly added key has the "use" attribute ommited and the key itself is the issuer CA of the SSL certificate you have.
But, please go ahead and open a Jira issue. I agree that system shouldn't complain in this case, so let's fix it.