---
name: "shishi_ap_req_process_keyusage"
section: "3"
platform: "linux"
package: "shishi-doc"
version: "1.0.3-5"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/shishi_ap_req_process_keyusage"
---

# shishi\_ap\_req\_process\_keyusage(3)

API function

## NAME

shishi\_ap\_req\_process\_keyusage - API function

## SYNOPSIS

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

**int shishi\_ap\_req\_process\_keyusage(Shishi\_ap \*** *ap***, Shishi\_key \*** *key***, int32\_t** *keyusage***);**

## ARGUMENTS

- Shishi\_ap \* ap

  structure that holds information about AP exchange

- Shishi\_key \* key

  cryptographic key used to decrypt ticket in AP-REQ.

- int32\_t keyusage

  key usage to use during decryption, for normal AP-REQ's this is normally SHISHI\_KEYUSAGE\_APREQ\_AUTHENTICATOR, for AP-REQ's part of TGS-REQ's, this is normally SHISHI\_KEYUSAGE\_TGSREQ\_APREQ\_AUTHENTICATOR.

## DESCRIPTION

Decrypt ticket in AP-REQ using supplied key and decrypt Authenticator in AP-REQ using key in decrypted ticket, and on success set the Ticket and Authenticator fields in the AP exchange.

## RETURN VALUE

Returns SHISHI\_OK iff successful.

## REPORTING BUGS

Report bugs to \<bug-shishi@gnu.org\>. GNU Shishi home page: http://www.gnu.org/software/shishi/ General help using GNU software: http://www.gnu.org/gethelp/

## COPYRIGHT

Copyright © 2002-2022 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.

## SEE ALSO

The full documentation for **shishi** is maintained as a Texinfo manual.  If the **info** and **shishi** programs are properly installed at your site, the command

-

  **info shishi**

should give you access to the complete manual.