---
name: "pskc_get_key_policy_keyusages"
section: "3"
platform: "linux"
package: "oath-toolkit"
version: "2.6.15-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/pskc_get_key_policy_keyusages"
---

# pskc\_get\_key\_policy\_keyusages(3)

API function

## NAME

pskc\_get\_key\_policy\_keyusages - API function

## SYNOPSIS

**#include \<pskc.h\>**

**int pskc\_get\_key\_policy\_keyusages(pskc\_key\_t \*** *key***, int \*** *present***);**

## ARGUMENTS

- pskc\_key\_t \* key

  a **pskc\_key\_t** handle, from **pskc\_get\_keypackage()**.

- int \* present

  output variable indicating whether data was provided or not.

## DESCRIPTION

Get the PSKC KeyPackage Key Policy KeyUsage values.  The element puts constraints on the intended usage of the key.  The recipient of the PSKC document MUST enforce the key usage.

If *present* is non-NULL, it will be 0 if the field is not present or 1 if it was present.

## RETURNS

an integer holding a set of **pskc\_keyusage** values ORed together.

## REPORTING BUGS

Report bugs to \<oath-toolkit-help@nongnu.org\>. libpskc home page: https://oath-toolkit.codeberg.page/ General help using GNU software: http://www.gnu.org/gethelp/

## COPYRIGHT

Copyright © 2009-2026 Simon Josefsson.\
 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.