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Chirag,

On 10/8/13 6:01 AM, Chirag Dewan wrote:
> I am using Embedded Tomcat 6.0.37. I have a servlet which is
> running over HTTPS using SSL Connector. I have a Java Keystore with
> Customer Certificate imported in it.
> 
> Now,there is a HTTP Client on the customers end which connects
> with the servlet over HTTPS(I have very little information about
> the customers client configuration)
> 
> The problem we are facing is:
> 
> For the first request from Client,the SSL handshaking fails.

How, specifically? What do you observe on the server? What do you
observe on the client?

> From second request, handshaking is completed successfully and the 
> requests are processed. I have observed when Server selects 
> TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA as the cipher suite, only then
> the Server sends a reset to the client and the handshaking fails.
> On second request, with same cipher suite,it works fine.

So the first request and second request seem to both negotiate the
same cipher suite (TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA) but the first
one fails?

> Can anyone assist me in understanding why it is failing for the
> first time? And is there any way I can force the Tomcat not to
> select this cipher suite? Or any other way that I can resolve this
> issue.

See the Connector documentation, specifically the "cipherSuites"
attribute. Unfortunately, Tomcat's cipherSuites configuration is only
explicit... you can't say something like "defaults without
TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA".

See this thread in the archives for a short program that will dump-out
the available cipher suites and indicates which ones are available by
default in your environment (note that the results will change for
every different version of Java you use):
http://markmail.org/message/zn4namfhypyxum23

- -chris
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