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diff --git a/raw-wiki-dump/GitRepositories%2Fuser%2Fjs%2Fvndecorrelator b/raw-wiki-dump/GitRepositories%2Fuser%2Fjs%2Fvndecorrelator new file mode 100644 index 0000000..b587b81 --- /dev/null +++ b/raw-wiki-dump/GitRepositories%2Fuser%2Fjs%2Fvndecorrelator @@ -0,0 +1,43 @@ +{{{ +#!htmlcomment + +This page is maintained automatically by a script. Don't modify this page by hand, +your changes will just be overwritten the next time the script runs. Talk to your +Friendly Neighborhood Repository Maintainer if you need to change something here. + +}}} + +{{{ +#!html +<h1>vndecorrelator</h1> + +<h1>Introduction</h1> + +<p>A Verilog implementation of a von Neumann decorrelator, generally called +a conditioner or whitening function. This tiny module consumes entropy +bits and outputs decorrelated bits.</p> + +<p>The <a href="http://www1.spms.ntu.edu.sg/~kkhoongm/Entropy.pdf">Von Neumann decorrelator</a> +consumes pairs of bits and outputs bits based on the pattern in th bit pairs:</p> + +<ul> +<li>00 and 11: No output of a bit.</li> +<li>10 and 01: Output the first bit in the pair</li> +</ul> + +<p>In the best case with random bits, the output bitrate will be 1/4. For +heavily biased input bits, the rate will be much slower. When used with +a broken entropy source that is stuck at zero or one, no bits will be +emitted.</p> + +<p>This implementation operates on streams of single bits and creates pairs +internally.</p> + +<h1>Status</h1> + +<p>Implementation done. Tested in FPGA designs and works.</p> +}}} + +[[RepositoryIndex(format=table,glob=user/js/vndecorrelator)]] + +|| Clone `https://git.cryptech.is/user/js/vndecorrelator.git` || |