---
name: "gnutls_x509_privkey_set_spki"
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_privkey_set_spki"
---

# gnutls\_x509\_privkey\_set\_spki(3)

API function

## NAME

gnutls\_x509\_privkey\_set\_spki - API function

## SYNOPSIS

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

**int gnutls\_x509\_privkey\_set\_spki(gnutls\_x509\_privkey\_t** *key***, const gnutls\_x509\_spki\_t** *spki***, unsigned int** *flags***);**

## ARGUMENTS

- gnutls\_x509\_privkey\_t key

  should contain a **gnutls\_x509\_privkey\_t** type

- const gnutls\_x509\_spki\_t spki

  a SubjectPublicKeyInfo structure of type **gnutls\_x509\_spki\_t**

- unsigned int flags

  must be zero

## DESCRIPTION

This function will return the public key information of a private key. The provided  *spki* must be initialized.

## RETURNS

Zero on success, or a negative error code on error.

## 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/