Is there a summary somewhere of the changes that were made to the
SSLv3 and TLSv1 message exchanges to avoid the vulnerability in the
CBC cipher suites?

In particular, I need to know:

 . the description of the vulnerability

 . a description of the workaround

 . a summary of why the workaround should be considered valid in 
   the protocol

I have come across a large commercial user of SSL services for whom
the workaround fails.  The transmission of the data frame with no
application data generates an SSL Alert causing the application to
close the connection.  The developers of the SSL library being used
have replied that SSLv3 does not permit data frames containing no
application data.  

Can someone summarize the issues for me?

Thanks.



 Jeffrey Altman * Sr.Software Designer     Kermit 95 2.0 GUI available now!!!
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