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katoni/php-ffx
==============

A pure PHP implementation of Format-preserving, Feistel-based encryption (FFX).

v1.0(3y ago)632.9k↓30%31MITPHPPHP ^7.3 || ^8.0

Since Mar 27Pushed 3y ago1 watchersCompare

[ Source](https://github.com/katoni/php-ffx)[ Packagist](https://packagist.org/packages/katoni/php-ffx)[ Docs](https://github.com/katoni/php-ffx)[ RSS](/packages/katoni-php-ffx/feed)WikiDiscussions master Synced 1mo ago

READMEChangelog (1)Dependencies (3)Versions (2)Used By (1)

A pure PHP implementation of Format-preserving, Feistel-based encryption (FFX).

Ported from [emulbreh/pyffx](https://github.com/emulbreh/pyffx).

Usage
=====

[](#usage)

```
$key = 'hello';
$alphabet = 'abcdefghijklmnopqrstuvwxyz';

$ffx = new \Katoni\FFX\Codecs\Text($key, $alphabet, 10);
$ffx->encrypt('encryption'); // string: jrsunxgmbq

$ffx = new \Katoni\FFX\Codecs\Integer($key, 4);
$ffx->encrypt('1234'); // int: 1867
```

###  Health Score

32

—

LowBetter than 72% of packages

Maintenance20

Infrequent updates — may be unmaintained

Popularity34

Limited adoption so far

Community11

Small or concentrated contributor base

Maturity49

Maturing project, gaining track record

 Bus Factor1

Top contributor holds 100% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Unknown

Total

1

Last Release

1149d ago

### Community

Maintainers

![](https://www.gravatar.com/avatar/c73222b6eb888b454fb33b76929062c1eef5ffef92f463e6492072824469326b?d=identicon)[mpskovvang](/maintainers/mpskovvang)

---

Top Contributors

[![mpskovvang](https://avatars.githubusercontent.com/u/7034075?v=4)](https://github.com/mpskovvang "mpskovvang (16 commits)")

---

Tags

encryptionffxfpephpencryptionffxfpekatoniphp-ffx

###  Code Quality

TestsPHPUnit

Static AnalysisPsalm

Type Coverage Yes

### Embed Badge

![Health badge](/badges/katoni-php-ffx/health.svg)

```
[![Health](https://phpackages.com/badges/katoni-php-ffx/health.svg)](https://phpackages.com/packages/katoni-php-ffx)
```

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