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Suppose I have one URL.
http://google.com …I’d like to turn it into a hash. S3jvZLSDK.
Then take this hash and reverse it! into http://google.com.
To you geeks out there–what is the BEST method to do this for near-ZERO collision?
If you can reverse it, then by definition it isn’t a hash. It’s an encoding. Any encoding will have zero collisions (otherwise it wouldn’t be able to accurately reverse it).
A common encoding for this purpose is base64.