Developing DKIM using GNUtls

Nikos Mavrogiannopoulos nmav at
Mon Nov 29 14:49:20 CET 2010

Check gnutls 2.11.x. There is new API to sign/verify using private
keys and plain
public keys.


On Mon, Nov 29, 2010 at 2:06 PM, Alessandro Vesely <vesely at> wrote:
> Hi all,
> I have little crypto experience.  However, I've been using a dkim
> library (OpenDKIM) based on OpenSSL to write a mail filter.  I'd like
> to compile that library with GNUtls instead.  Is that possible?
> I've browsed GNUtls' API page and found gnutls_fingerprint() can
> produce required hashes, but haven't been able to find functions to
> produce/verify RSA signatures using just the keys.  (DKIM does not use
> x509 certificates.)
> Ale
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