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I'm using mysql database auto-increment as an order ID. When I display the order ID to the user, I want to somehow mask/obfuscate it.
Why?
Based on this this answer, I want the masked/obfuscated order id to:
How would I acheive this in PHP? It doesn't have to be very complex, just so at first glance it's not obvious.
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ID Obfuscator is a Java library for obfuscating numerical identifiers. Practically, that means taking a number like "17" and transforming it into a string like "GDJSHCX" (and, presumably, turning that string back into a number later).
Obfuscation is an umbrella term for a variety of processes that transform data into another form in order to protect sensitive information or personal data. Three of the most common techniques used to obfuscate data are encryption, tokenization, and data masking.
To obfuscate is to confuse someone, or to obscure the meaning of something. An example of obfuscate is when a politician purposely gives vague answers to a question so no one knows his real position. To deliberately make more confusing in order to conceal the truth.
Obfuscation refers to the process of concealing something important, valuable, or critical. Cybercriminals use obfuscation to conceal information such as files to be downloaded, sites to be visited, etc.
I think you can use XOR operator to hide "at first glance" for example (MySQL example):
(id*121) ^ 2342323
Where 2342323 and 121 are "magic" numbers - templates for the order number.
To reverse:
(OrderNum ^ 2342323)/121
Additional advantage in this case - you can validate OrderNumber (to avoid spam or something like this in online form) if (OrderNum ^ 2342323) is divided by 121 with no remainder.
SQLFiddle demo
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