README

Anonimization is a PHP library that helps you to anonymize your databases in a fast and dynamic way.

Note: The data is permanently modified

Installation

composer require ggomez/anonymization

Module for database anonymisation

You only have to call the class in this way:

<?php
require_once __DIR__ . '/vendor/autoload.php';

use Anonymization\Anonymization\Anonymous as Anonymous;

$a = new Anonymous();
$a->start();

The anonymous class constructor accepts two parameters:

• Anonymization Configuration File
• Anonymization Configuration DataBase connection

However, the constructor uses by default the files that are in the path: vendor/ggomez/anonymization/src/Config

One of the most important parts of anonymization is the configuration file. In the path above, you will find examples of the 3 allowed formats YML, JSON, PHP.

It is very important to maintain the structure, in this case we have a database that his name is "Test", then in the second part there is the sensitive word section, in this part we are going to describe all word that we want to change, the first word is that one we want to change and the seconds is that one we want to add in the database.

In the first part only the database to be anonymized is indicated, in the second part the sensitive words that could reveal someone's identity are specified and finally, in the last section the necessary settings for the anonymization of the database are inserted.

##Database name
Data_base: Test

##Insert all sensitive information that you want to change
KeyWord:
  Psychiatry: XXXX

##Only integer numbers
Counter: 10000

##Tables that you want to change
Tables:
  fos_user:
    alias: fos_user fosu, RandomData rd
    mapping:
      email: fosu.email = |email
      email_canonical: email_canonical = rd.email
      first_name: first_name = rd.firstname
      last_name: last_name =  rd.lastname
      created_by: created_by = |User#*gmail.fr
      updated_by: updated_by = |UserJ#*
      username: username = |UserL#*
      username_canonical: username_canonical = |UserE#*
    condition: " WHERE (MOD(fosu.id,1499) +1) = rd.id"

There are 3 options for data anonymisation:

• Generate data from a given format
• In this case the character "asterisk" is going to become a number, for exmple if we have a user's name in this field we are going to get a generic format with successive numbers

tiers:
    alias: fos_user fos, RandomData rd
    mapping:
     username: fos.username = |User#*

• Generate new data from the RandomData table
  • When executing the library, a temporary table is loaded containing random data that can be used to anonymize complete tables

  tel: t.tel = rd.phone

• Generate new data
  • If you want to generate a random data, such as an address or phone number, you can do it with the following syntax

  email: email = |email

In all cases it is recommended to use a condition, especially the following syntax is recommended in cases where you want to use the RandomData table, this to get different results in each line of the table

condition: ' WHERE (MOD(t.id,1499) +1) = rd.id'