.\" DO NOT MODIFY THIS FILE!  It was generated by gdoc.
.TH "gnutls_x509_ext_import_key_usage" 3 "3.8.4" "gnutls" "gnutls"
.SH NAME
gnutls_x509_ext_import_key_usage \- API function
.SH SYNOPSIS
.B #include <gnutls/x509-ext.h>
.sp
.BI "int gnutls_x509_ext_import_key_usage(const gnutls_datum_t * " ext ", unsigned int * " key_usage ");"
.SH ARGUMENTS
.IP "const gnutls_datum_t * ext" 12
the DER encoded extension data
.IP "unsigned int * key_usage" 12
where the key usage bits will be stored
.SH "DESCRIPTION"
This function will return certificate's key usage, by reading the DER
data of the keyUsage X.509 extension (2.5.29.15). The key usage value will ORed
values of the: \fBGNUTLS_KEY_DIGITAL_SIGNATURE\fP,
\fBGNUTLS_KEY_NON_REPUDIATION\fP, \fBGNUTLS_KEY_KEY_ENCIPHERMENT\fP,
\fBGNUTLS_KEY_DATA_ENCIPHERMENT\fP, \fBGNUTLS_KEY_KEY_AGREEMENT\fP,
\fBGNUTLS_KEY_KEY_CERT_SIGN\fP, \fBGNUTLS_KEY_CRL_SIGN\fP,
\fBGNUTLS_KEY_ENCIPHER_ONLY\fP, \fBGNUTLS_KEY_DECIPHER_ONLY\fP.
.SH "RETURNS"
the certificate key usage, or a negative error code in case of
parsing error.  If the certificate does not contain the keyUsage
extension \fBGNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE\fP will be
returned.
.SH "SINCE"
3.3.0
.SH "REPORTING BUGS"
Report bugs to <bugs@gnutls.org>.
.br
Home page: https://www.gnutls.org

.SH COPYRIGHT
Copyright \(co 2001-2023 Free Software Foundation, Inc., and others.
.br
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.
.SH "SEE ALSO"
The full documentation for
.B gnutls
is maintained as a Texinfo manual.
If the /usr/share/doc/gnutls/
directory does not contain the HTML form visit
.B
.IP https://www.gnutls.org/manual/
.PP