NAME

       gnutls_x509_crq_get_key_usage - API function

SYNOPSIS

       #include <gnutls/x509.h>

       int  gnutls_x509_crq_get_key_usage(gnutls_x509_crq_t  crq,  unsigned  int  *  key_usage,  unsigned  int *
       critical);

ARGUMENTS

       gnutls_x509_crq_t crq
                   should contain a gnutls_x509_crq_t type

       unsigned int * key_usage
                   where the key usage bits will be stored

       unsigned int * critical
                   will be non-zero if the extension is marked as critical

DESCRIPTION

       This function will return certificate's key usage, by reading the keyUsage X.509  extension  (2.5.29.15).
       The  key  usage  value will ORed values of the: GNUTLS_KEY_DIGITAL_SIGNATURE, GNUTLS_KEY_NON_REPUDIATION,
       GNUTLS_KEY_KEY_ENCIPHERMENT,           GNUTLS_KEY_DATA_ENCIPHERMENT,            GNUTLS_KEY_KEY_AGREEMENT,
       GNUTLS_KEY_KEY_CERT_SIGN, GNUTLS_KEY_CRL_SIGN, GNUTLS_KEY_ENCIPHER_ONLY, GNUTLS_KEY_DECIPHER_ONLY.

RETURNS

       the  certificate  key  usage, or a negative error code in case of parsing error.  If the certificate does
       not contain the keyUsage extension GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE will be returned.

SINCE

       2.8.0

REPORTING BUGS

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

COPYRIGHT

       Copyright © 2001-2022 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

       http://www.gnutls.org/manual/