How to Securely Hide Database Object IDs in URLs?

Solution for hiding the real database object ID in the URL

For security reasons, it is crucial to hide the real database object ID in the URL . Here are some useful solutions:

1. Use Hashids open source project

Hashids is a library that converts numeric IDs into compact and unordered characters string. This method is useful for generating short, easy-to-remember URLs while providing a level of security.

2. Use a hash function

Another solution is to use a hash function (such as MD5) to generate the hash value when creating the object and store it in the database. The hash value can then be used in the URL for querying. However, it is important to note that querying an auto-incrementing primary key (ID) is faster than querying a hash value.

To resolve performance issues, consider creating another column to store hash values. This way hashing/unhashing operations can be avoided at query time, thus increasing query speed.

Symfony integration

For using Symfony Users of KnpAssociationFilterBundle can choose to use the following bundles or built-in functions: ability.

• Symfony’s random functions: Symfony provides the RandomizerInterface class that can generate safe and unpredictable random values. You can use this class to create hashes for use in URLs.
• Comprehensive Guide

For more in-depth information on URL parameter encryption, see the blog post "A Comprehensive Guide to URL Parameter Encryption in PHP". This article explores the goals people often seek in this situation and recommends alternatives.

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