gnutls suite b interoperability with a mocana server

Nikos Mavrogiannopoulos nmav at
Thu Apr 26 23:17:07 CEST 2012

On 04/26/2012 08:37 PM, James Newell wrote:

> Hello,
> I'm attempting to use gntls client with a mocana ssl server.  The
> gnutls-cli fails indicating it could not negotiate a cipher suite,
> despite the mocana sending back the cipher selected in the server
> hello packet chosen from the client cipher list.  I've provide both
> debug output from the server and client below.  Is it possible I
> configured something incorrectly on the gnutls side?  Any help is
> appreciated.

Interesting issue. The key is:

> |<3>| HSK[0x14fc5f0]: Server's version: 3.0
> |<3>| HSK[0x14fc5f0]: unsupported cipher suite C0.09

Your server negotiates SSL 3.0 with an elliptic curve ciphersuite. Those
are defined with TLS 1.0 or later. Is there an option to
enable TLS 1.0 on your server?


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