NAME

       gnutls_x509_crt_get_pk_algorithm - API function

SYNOPSIS

       #include <gnutls/x509.h>

       int gnutls_x509_crt_get_pk_algorithm(gnutls_x509_crt_t cert, unsigned int * bits);

ARGUMENTS

       gnutls_x509_crt_t cert
                   should contain a gnutls_x509_crt_t type

       unsigned int * bits
                   if bits is non null it will hold the size of the parameters' in bits

DESCRIPTION

       This function will return the public key algorithm of an X.509 certificate.

       If  bits  is non null, it should have enough size to hold the parameters size in bits. For
       RSA the bits returned is the modulus.  For  DSA  the  bits  returned  are  of  the  public
       exponent.

       Unknown/unsupported algorithms are mapped to GNUTLS_PK_UNKNOWN.

RETURNS

       a  member of the gnutls_pk_algorithm_t enumeration on success, or a negative error code on
       error.

REPORTING BUGS

       Report bugs to <bugs@gnutls.org>.
       Home page: https://www.gnutls.org

COPYRIGHT

       Copyright © 2001-2023 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

       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

       https://www.gnutls.org/manual/