From 3aa8b1dd6e0f504ef83da99f8c9cdb2532f948f5 Mon Sep 17 00:00:00 2001 From: Rob Austein Date: Sun, 13 Sep 2020 23:10:21 +0000 Subject: Initial conversion pass --- ...sitories%2Ftest%2Fexternal_avalanche_entropy.md | 36 ++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 raw-wiki-dump/GitRepositories%2Ftest%2Fexternal_avalanche_entropy.md (limited to 'raw-wiki-dump/GitRepositories%2Ftest%2Fexternal_avalanche_entropy.md') diff --git a/raw-wiki-dump/GitRepositories%2Ftest%2Fexternal_avalanche_entropy.md b/raw-wiki-dump/GitRepositories%2Ftest%2Fexternal_avalanche_entropy.md new file mode 100644 index 0000000..05cb516 --- /dev/null +++ b/raw-wiki-dump/GitRepositories%2Ftest%2Fexternal_avalanche_entropy.md @@ -0,0 +1,36 @@ +``` +#!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 +

External Avalanche Entropy

+ +

This is a test project of an entropy provider that collects entropy from +an avalanche noise based source.

+ +

The design expects a one bit digital input noise signal. The collector +observes positive flank events in the input noise signal and measures the +time between these events using a counter. The counter is free running +and increases once for each clock cycle (currently running av 50 MHz).

+ +

The LSB of the counter is added to a 32-bit entropy register at each +event.

+ +

As debug output the entropy register is sampled at a given rate +(currently a few times per second). The debug output is connected to LED +on the FPGA development board.

+ +

The project also contains project files, pin assignments and clock +definition neded to implement the design on a TerasIC DE0-Nano board.

+``` + +[[RepositoryIndex(format=table,glob=test/external_avalanche_entropy)]] + +| Clone `https://git.cryptech.is/test/external_avalanche_entropy.git` | +|---| -- cgit v1.2.3