NAME gnutls_pubkey_get_preferred_hash_algorithm - API function
SYNOPSIS #include <gnutls/gnutls.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 cer- tificates (i.e. DSA might not be able to sign without the preferred algorithm).
RETURNS the 0 if the hash algorithm is found. A negative value is returned on error.
REPORTING BUGS Report bugs to <firstname.lastname@example.org>. GnuTLS home page: http://www.gnu.org/software/gnutls/ General help using GNU software: http://www.gnu.org/gethelp/
COPYRIGHT Copyright © 2008 Free Software Foundation. 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
should give you access to the complete manual.