---
name: "gnutls_openpgp_crt_get_preferred_key_id"
section: "3"
platform: "linux"
package: "gnutls-doc"
version: "3.5.8-5+deb9u5"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/gnutls_openpgp_crt_get_preferred_key_id"
---

# gnutls\_openpgp\_crt\_get\_preferred\_key\_id(3)

API function

## NAME

gnutls\_openpgp\_crt\_get\_preferred\_key\_id - API function

## SYNOPSIS

**#include \<gnutls/openpgp.h\>**

**int gnutls\_openpgp\_crt\_get\_preferred\_key\_id(gnutls\_openpgp\_crt\_t** *key***, gnutls\_openpgp\_keyid\_t** *keyid***);**

## ARGUMENTS

- gnutls\_openpgp\_crt\_t key

  the structure that contains the OpenPGP public key.

- gnutls\_openpgp\_keyid\_t keyid

  the struct to save the keyid.

## DESCRIPTION

Get preferred key id.  If it hasn't been set it returns **GNUTLS\_E\_INVALID\_REQUEST**.

## RETURNS

the 64-bit preferred keyID of the OpenPGP key.

## REPORTING BUGS

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

## COPYRIGHT

Copyright © 2001-2020 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/