---
name: "File::KDBX::KDF::AES"
section: "3pm"
platform: "linux"
package: "libfile-kdbx-perl"
version: "0.906-3"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/File::KDBX::KDF::AES"
---

# File::KDBX::KDF::AES(3pm)

Using the AES cipher as a key derivation function

## NAME

File::KDBX::KDF::AES - Using the AES cipher as a key derivation function

## VERSION

version 0.906

## DESCRIPTION

An AES-256-based key derivation function. This is a File::KDBX::KDF subclass.

This KDF has a long, solid track record. It is supported in both KDBX3 and KDBX4.

## ATTRIBUTES

### rounds

```
    $rounds = $kdf->rounds;
```

Get the number of times to run the function during transformation.

## CAVEATS

This module can be pretty slow when the number of rounds is high. If you have File::KDBX::XS, that will help. If your perl has `"fork"`, that will also help. If you need to turn off one or both of these optimizations for some reason, set the `"PERL_ONLY"` (to prevent Loading `"File::KDBX::XS"`) and `"NO_FORK"` environment variables.

## BUGS

Please report any bugs or feature requests on the bugtracker website \<https://github.com/chazmcgarvey/File-KDBX/issues\>

When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.

## AUTHOR

Charles McGarvey \<ccm@cpan.org\>

## COPYRIGHT AND LICENSE

This software is copyright (c) 2022 by Charles McGarvey.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.