.\" DO NOT MODIFY THIS FILE!  It was generated by gdoc.
.TH "gnutls_openpgp_crt_get_auth_subkey" 3 "3.5.8" "gnutls" "gnutls"
.SH NAME
gnutls_openpgp_crt_get_auth_subkey \- API function
.SH SYNOPSIS
.B #include <gnutls/openpgp.h>
.sp
.BI "int gnutls_openpgp_crt_get_auth_subkey(gnutls_openpgp_crt_t " crt ", gnutls_openpgp_keyid_t " keyid ", unsigned int " flag ");"
.SH ARGUMENTS
.IP "gnutls_openpgp_crt_t crt" 12
the structure that contains the OpenPGP public key.
.IP "gnutls_openpgp_keyid_t keyid" 12
the struct to save the keyid.
.IP "unsigned int flag" 12
Non\-zero indicates that a valid subkey is always returned.
.SH "DESCRIPTION"
Returns the 64\-bit keyID of the first valid OpenPGP subkey marked
for authentication.  If flag is non\-zero and no authentication
subkey exists, then a valid subkey will be returned even if it is
not marked for authentication.
.SH "RETURNS"
\fBGNUTLS_E_SUCCESS\fP on success, or an error code.
.SH "REPORTING BUGS"
Report bugs to <bugs@gnutls.org>.
.br
Home page: http://www.gnutls.org

.SH COPYRIGHT
Copyright \(co 2001-2017 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 http://www.gnutls.org/manual/
.PP