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The article here says below, about a universal hashing technique based on matrix multiplications.

"However, there is a little known method based on using a random matrix. It has lots of advantages - it's a universal family"

I tried to hard to find the source paper of the same to dig deeper but could not. Any references about the technique ?

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Proving \epsilon-universality of random matrix hashing sounds an execise. I once found proofs in Shoup's textbook. –  xagawa Jul 24 at 12:29

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