NAME         top

       gnutls_pubkey_get_preferred_hash_algorithm - API function

SYNOPSIS         top

       #include <gnutls/abstract.h>

       int gnutls_pubkey_get_preferred_hash_algorithm(gnutls_pubkey_t key,
       gnutls_digest_algorithm_t *         hash, unsigned int * mand);

ARGUMENTS         top

       gnutls_pubkey_t key
                   Holds the certificate

       gnutls_digest_algorithm_t *         hash
                   The result of the call with the hash algorithm used for

       unsigned int * mand
                   If non zero it means that the algorithm MUST use this
                   hash. May be NULL.

DESCRIPTION         top

       This function will read the certificate and return the appropriate
       digest algorithm to use for signing with this certificate. Some
       certificates (i.e.  DSA might not be able to sign without the
       preferred algorithm).

       To get the signature algorithm instead of just the hash use
       gnutls_pk_to_sign() with the algorithm of the certificate/key and the
       provided  hash .

RETURNS         top

       the 0 if the hash algorithm is found. A negative error code is
       returned on error.

SINCE         top


REPORTING BUGS         top

       Report bugs to <>.
       Home page:

COPYRIGHT         top

       Copyright © 2001-2017 Free Software Foundation, Inc., and others.
       Copying and distribution of this file, with or without modification,
       are permitted in any medium without royalty provided the copyright
       notice and this notice are preserved.

SEE ALSO         top

       The full documentation for gnutls is maintained as a Texinfo manual.
       If the /usr/share/doc/gnutls/ directory does not contain the HTML
       form visit 

COLOPHON         top

       This page is part of the GnuTLS (GnuTLS Transport Layer Security
       Library) project.  Information about the project can be found at 
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gnutls                         gnutl3s._6p.u1bkey_get_preferred_hash_algorithm(3)