gnutls_pubkey_get_preferred_hash_algorithm(3) gnutls gnutls_pubkey_get_preferred_hash_algorithm(3)
NAME
gnutls_pubkey_get_preferred_hash_algorithm - API function
SYNOPSIS
#include <gnutls/abstract.h>
int gnutls_pubkey_get_preferred_hash_algorithm(gnutls_pubkey_t key, gnutls_digest_algorithm_t *
hash, unsigned int * mand);
ARGUMENTS
gnutls_pubkey_t key
Holds the certificate
gnutls_digest_algorithm_t * hash
The result of the call with the hash algorithm used for signature
unsigned int * mand
If non zero it means that the algorithm MUST use this hash. May be NULL.
DESCRIPTION
This function will read the certifcate and return the appropriate digest algorithm to use for signing with this certificate. Some certifi-
cates (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
the 0 if the hash algorithm is found. A negative error code is returned on error.
SINCE
2.12.0
REPORTING BUGS
Report bugs to <bug-gnutls@gnu.org>.
General guidelines for reporting bugs: http://www.gnu.org/gethelp/
GnuTLS home page: http://www.gnu.org/software/gnutls/
COPYRIGHT
Copyright (C) 2012 Free Software Foundation, Inc..
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
The full documentation for gnutls is maintained as a Texinfo manual. If the info and gnutls programs are properly installed at your site,
the command
info gnutls
should give you access to the complete manual. As an alternative you may obtain the manual from:
http://www.gnu.org/software/gnutls/manual/
gnutls 3.1.15 gnutls_pubkey_get_preferred_hash_algorithm(3)