Hi All, We have some interop issue between TLS 1.0 and TLS 1.1. Our application is based on OpenSSL 0.9.7 version (Linux - Operation system). This is Radvision SIP stack and oSIP stack.
It doesn't work with one of two possible scenarios:
1) Client sends hello request to server where indicates that
the latest supported version it is TLS 1.1. Server accepts this request but
doesn't send back to client server hello request where should indicate the
latest supported version for him TLS 1.0. After that the connection is
dropped. (In correct behavior, server should send back to client server
hello request with TLS 1.0 and after that client should re-send hello
request but already using TLS 1.0).
2) The second scenario works properly. Client sends hello
request with TLS 1.0 to server which already supports TLS 1.1. Server
accepts client request and answers by server request with TLS 1.0.
Do you know such issue? Does the latest version of OpenSSL have the fix
which solves issue?
Thanks,
Ilya Kudryashov
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