---
name: "gnutls_x509_aki_set_cert_issuer"
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_set_cert_issuer"
---

# gnutls\_x509\_aki\_set\_cert\_issuer(3)

API function

## NAME

gnutls\_x509\_aki\_set\_cert\_issuer - API function

## SYNOPSIS

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

**int gnutls\_x509\_aki\_set\_cert\_issuer(gnutls\_x509\_aki\_t** *aki***, unsigned int** *san\_type***, const gnutls\_datum\_t \*** *san***, const char \*** *othername\_oid***, const gnutls\_datum\_t \*** *serial***);**

## ARGUMENTS

- gnutls\_x509\_aki\_t aki

  The authority key ID

- unsigned int san\_type

  the type of the name (of **gnutls\_subject\_alt\_names\_t**), may be null

- const gnutls\_datum\_t \* san

  The alternative name data

- const char \* othername\_oid

  The object identifier if  *san\_type* is **GNUTLS\_SAN\_OTHERNAME**

- const gnutls\_datum\_t \* serial

  The authorityCertSerialNumber number (may be null)

## DESCRIPTION

This function will set the authorityCertIssuer name and the authorityCertSerialNumber  to be stored in the  *aki* type. When storing multiple names, the serial should be set on the first call, and subsequent calls should use a **NULL** serial.

Since version 3.5.7 the **GNUTLS\_SAN\_RFC822NAME**, **GNUTLS\_SAN\_DNSNAME**, and **GNUTLS\_SAN\_OTHERNAME\_XMPP** are converted to ACE format when necessary.

## RETURNS

On success, **GNUTLS\_E\_SUCCESS** (0) is returned, 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/