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Re:My first tiny "weekend project": readable text hosting. U... by rwolf on Tuesday November 30, 2010 @04:50PM (#1955718)
I'd recommend against shortening the key length, given that keeping the keys hard to guess is how you're keeping them private.

See https://gist.github.com/722474 for a proof of concept scraper. If the key length dropped to 4 chars (and you kept l, o, L, and O in the set), there would only be 7,311,616 urls to try to find all the notes.

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