Klaas Speller spllr

spllr / feistel_cipher_test.c

Last active February 21, 2020 22:18

Feistel Cipher test implementation inspired by the "Feistel Cipher - Computerphile" Youtube video

	/**
	* build:
	* gcc feistel_cipher_test.c -o feistel_cipher_test
	*
	* run:
	* ./feistel_cipher_test
	*
	* Feistel Cipher test implementation inspired by the "Feistel Cipher - Computerphile"
	* Youtube video: https://youtu.be/FGhj3CGxl8I
	*

spllr / privacy_preserving_contact_tracing_test.rb

Last active April 20, 2020 07:22

Demo implementation of "Privacy-Preserving Contact Tracing" introduced by Apple and Google during the COVID‑19 pandemic.

	#!/usr/bin/env ruby

	# Usage: privacy_preserving_contact_tracing_test.rb [options]
	#
	# Specific options:
	# -K, --tracing-key=TRACING_KEY Tracing key, 32 bytes, HEX encoded
	# -DDAILY_TRACING_KEY, Daily tracing key, 16 bytes, HEX encoded
	# --daily-tracing-key When provided TRACING_KEY is ignored
	# -t, --time=TIME Date and/ or time to use start
	# -d, --days=NUM_DAYS Number of days to generate identifiers for