---
name: "gnutls_x509_aki_get_id"
section: "3"
platform: "linux"
package: "gnutls"
version: "3.8.13-3"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/gnutls_x509_aki_get_id"
---

# gnutls\_x509\_aki\_get\_id(3)

API function

## NAME

gnutls\_x509\_aki\_get\_id - API function

## SYNOPSIS

**#include \<gnutls/x509-ext.h\>**

**int gnutls\_x509\_aki\_get\_id(gnutls\_x509\_aki\_t** *aki***, gnutls\_datum\_t \*** *id***);**

## ARGUMENTS

- gnutls\_x509\_aki\_t aki

  The authority key ID

- gnutls\_datum\_t \* id

  Will hold the identifier

## DESCRIPTION

This function will return the key identifier as stored in the  *aki* type. The identifier should be treated as constant.

## RETURNS

On success, **GNUTLS\_E\_SUCCESS** (0) is returned, **GNUTLS\_E\_REQUESTED\_DATA\_NOT\_AVAILABLE** if the index is out of bounds, otherwise a negative error value.

## SINCE

3\.3.0

## 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/