---
name: "gnutls_x509_ext_import_private_key_usage_period"
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_ext_import_private_key_usage_period"
---

# gnutls\_x509\_ext\_import\_private\_key\_usage\_period(3)

API function

## NAME

gnutls\_x509\_ext\_import\_private\_key\_usage\_period - API function

## SYNOPSIS

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

**int gnutls\_x509\_ext\_import\_private\_key\_usage\_period(const gnutls\_datum\_t \*** *ext***, time\_t \*** *activation***, time\_t \*** *expiration***);**

## ARGUMENTS

- const gnutls\_datum\_t \* ext

  the DER encoded extension data

- time\_t \* activation

  Will hold the activation time

- time\_t \* expiration

  Will hold the expiration time

## DESCRIPTION

This function will return the expiration and activation times of the private key as written in the PKIX extension 2.5.29.16.

## 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/