---
name: "gnutls_openpgp_key_get_pk_algorithm"
section: "3"
platform: "linux"
package: "gnutls-doc"
version: "1.4.4-3+etch5"
release: "Debian 4.0 (Etch)"
platforms: ["linux"]
url: "https://new.carta.tech/gnutls_openpgp_key_get_pk_algorithm"
---

# gnutls\_openpgp\_key\_get\_pk\_algorithm(3)

This function returns the key's PublicKey algorithm

## NAME

gnutls\_openpgp\_key\_get\_pk\_algorithm - This function returns the key's PublicKey algorithm

## SYNOPSIS

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

**int gnutls\_openpgp\_key\_get\_pk\_algorithm(gnutls\_openpgp\_key\_t** *key***, unsigned int \*** *bits***);**

## ARGUMENTS

- gnutls\_openpgp\_key\_t key

  is an OpenPGP key

- unsigned int \* bits

  if bits is non null it will hold the size of the parameters' in bits

## DESCRIPTION

This function will return the public key algorithm of an OpenPGP certificate.

If bits is non null, it should have enough size to hold the parameters size in bits. For RSA the bits returned is the modulus.  For DSA the bits returned are of the public exponent.

Returns a member of the GNUTLS\_PKAlgorithm enumeration on success, or a negative value on error.

## REPORTING BUGS

Report bugs to \<bug-gnutls@gnu.org\>.

## COPYRIGHT

Copyright © 2004 Free Software Foundation.\
 Permission is granted to make and distribute verbatim copies of this manual provided the copyright notice and this permission notice are preserved on all copies.

## SEE ALSO

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

-

  **info gnutls**

should give you access to the complete manual.