pwhash in Ruby

I spent some time this weekend re-implementing my pwhash functionality in ruby. I don't have much experience with ruby. I got some exposure to it when doing some work for johnlook a while back, but when writing this code it became apparent that I had some gaps in my knowledge.

Learning new programming languages is an interesting thing to do. I've done it a few times now and if the language is good it gives you a few new perspectives and new ideas on how to be a better programmer. I must say that ruby is a nice acquaintance. The learning curve is a bit steeper than with languages like python (or maybe I'm just getting old) but many things are elegant and I hope to get to work more with it in the future.

Anyway, without any further ado I give you pwhash.rb. Feel free to use it in any way that is compatible with GPL3. I'm fully aware that I have yet to master the style and details of ruby, so if you have any criticisms or ideas on how to improve upon it, feel free to drop me a line.

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