[Mono-bugs] [Bug 81511][Nor] Changed - TlsClientCertificate verifyCertificateUsage differs from spec

bugzilla-daemon at bugzilla.ximian.com bugzilla-daemon at bugzilla.ximian.com
Wed May 2 11:05:23 EDT 2007

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Changed by bugzilla at woy.nl.


--- shadow/81511	2007-05-02 08:34:50.000000000 -0400
+++ shadow/81511.tmp.14843	2007-05-02 11:05:23.000000000 -0400
@@ -45,6 +45,28 @@
 Note that OpenSSL and Mozilla != specs ;-) Every app/lib has it's own
 rules (worse if they existed before the RFC) and it's impossible to be
 compatible with 100% of them without removing all certificate checks :(
 Anyway I'll check the RFCs and make any required adjustments (if
 required). Thanks
+------- Additional Comments From bugzilla at woy.nl  2007-05-02 11:05 -------
+Yes I Know those are not the specs ;). But I couldn't find it clearly
+in the specs.
+As far as I know the Client private key is only used for the
+Certificate Verify message. This message is a signature over some date
+used in the handshake. So it seems logical that the certificate should
+support digitalSignature
+In rfc2246 7.4.8. Certificate verify
+As far as I can find the only key encryption the client does is in the
+ClientKeyExchange message. The specs say that the MasterSecret is
+encrypted with the public key of the ServerCertificate( rfc2246
+ ). But I don't see why this should be a reason that the
+ClientCertificate should have permission for KeyEncryption.
+As far as I can find in the specs the only requirement for the
+KeyEnchiperment bit is in rfc2246 chapter 7.4.2. But that is regarding
+the server certificate.
+I hope this helps.

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