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Re: how to send arbitrary data in supplemental data message

From: Nikos Mavrogiannopoulos
Subject: Re: how to send arbitrary data in supplemental data message
Date: Sun, 30 May 2010 13:05:57 +0200
User-agent: Thunderbird (X11/20100411)

LATZE Carolin wrote:
> Hi everybody,
> I ran again into problems with the supplemental data messages. I tried to 
> copy a certificate into the buffer of type gnutls_buffer and do not manage to 
> send all 1314 bytes of the certificate. Instead it sends only 41 bytes. I 
> tried it with another certificate which resulted in 65 bytes sent. This is 
> pretty strange. I expected the buffer to stop at a \0 character in the 
> signature, but that does not seem to be the case since strlen of the original 
> data results in the correct length of 1314. Any ideas?
> In order to simplify debugging, I copied my gnutls version including the 
> tls-tpm extension (not finished yet, but does not cause crashes :-)) onto a 
> server:
> Furthermore, I uploaded my little sample program as well:
> I would be happy for any hints or ideas since I am clueless at the moment.

Could you use debugging output with
  gnutls_global_set_log_function (tls_log_func);
  gnutls_global_set_log_level (level);

Level 2 should be sufficient.


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