A Simple Proof of XOR Uniqueness
I have a simple algorithm to conceal an auto-increment ID within a globally unique identifier such as UUIDv4, which involves XOR. The motivation behind this algorithm is to eliminate the predictability of the auto-increment ID when it’s exposed in a URL1. I can use UUID directly, but indexing UUIDs in MySQL has a significant performance impact2. UUID is necessary for security, while the auto-increment ID is essential for performance. This algorithm combines the best of both worlds....