[8] 7174966: With OCSP enabled on Java 7 get error 'Wrong key usage' with Comodo certificate

Tomas Gustavsson tomas at primekey.se
Thu May 30 10:51:28 UTC 2013


It was at some point common to require digitalSignature. Many years ago 
when we developed support for OCSP in EJBCA, Mozilla browsers would not 
accept OCSP responses with only keyCertSign and crlSign. 
DigitalSignature was needed as well. So at least it was common behaviour 
some years ago.

I don't know if FireFox ha changed that, I guess so as it seems unlikely 
Comodo would not work with FireFox.

RFC2560 does not specify anything about key usage, so my guess is that 
the CABForum has determined what browsers and public CAs should/could use.

Will try without digitalSignature in FireFox now :-)

Cheers,
Tomas

On 05/29/2013 04:55 PM, Matthew Hall wrote:
> Comodo used the root cert to sign the responses, which the RFC allows. I think Java is getting carried away with strictness on this.
>



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