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From "Bill Barker" <>
Subject Re: Adding CRL support to the Coyote Connector
Date Sat, 12 Feb 2005 22:24:08 GMT

----- Original Message ----- 
From: "Bruce Keats" <>
To: <>
Sent: Saturday, February 12, 2005 1:49 PM
Subject: Adding CRL support to the Coyote Connector

> After looking around and asking various people for help, it looks like
> CRLs are not supported in tomcat 5.0.x.  There are some work arounds
> but none are very appealing.  So rather than devote effort into the
> work around, I would rather devote the effort in solving the problem
> by adding CRL support into the Coyote Connector.
> Are there any plans on adding CRL support in tomcat in the near
> future?  Is anyone else looking into adding CRL support tomcat?

I've looked at it for TC 5.5 + JRE 1.5, but it hasn't itched enough to 
actually get around to implementing it ;-).  I'd be happy to review any 
patch you come up with however.

> If not then I will probably take a stab at trying to implement CRL
> support in the code.  Does anyone know why CRLs were not implemented
> in the past?  Is there some fundamental issue that I am not aware of?
> It looks like Java supports CRLs in JRE 1.4.2 (don't know about
> previous versions of java).

Prior to CertPathTrustManagerParameters in JRE 1.5, it's more work to pass 
the information to the TrustManager.

> Any pointers to where to add CRL support in the code would be greatly
> appreciated.  I am still trying to locate a good place in the code to
> extract the certificates from the TLS connection them run them through
>  If the certificate presented is not valid
> then the connection should be terminated.  I am also trying to find
> the best place in the code to load the CRL.
Well, would be the place to start, as 
the TrustManager is setup there.  I suppose that for JRE 1.4 Tomcat could 
also wrap the TrustManager like it does the KeyManager.

> Any help would be greatly appreciated.
> Bruce
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