Integer ID obfuscation techniques

Question

I\'m looking for an easy and reversible method of obfuscating integer IDs. Ideally, I\'d want the resulting obfuscation to be at most eight characters in length and non-seq

Answer 1

If you've only got about 10,000 integers then the easiest and most reliably way would probably be a mapping table between the integer and a randomly generated string. Either generate a bunch of random identifiers up-front that correspond to each integer, or just fill them in on demand.

This way you can guarantee no collisions, and don't have to worry about encryption because there's nothing to decrypt as the strings are not derived from the integers themselves.

You could implement it in a database table or in memory (e.g. a two-way dictionary) depending on your needs.