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Let's talk about PAKE (
4 points by rain1 to crypto web on Jan 14, 2019 | 2 comments

3 points by rain1 on Jan 14, 2019

I had no idea this was possible until today!

There are cryptographic protocols that can amplify a short password shared between 2 parties to a strong shared key. I thought that such violated some kind of fundamental entropy law. Nope!


Turning low-entropy inputs into random numbers is an active sub-field whose products are called extractors. They often needed at least one input to be truly random or have a certain amount of entropy. Here's an article on a recent one that improves over that:


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