From: David Llewellyn-Jones <david@flypig.co.uk>
Date: Sun, 19 Apr 2020 16:18:30 +0000 (+0300)
Subject: Add initial crypto functionality
X-Git-Url: https://www.flypig.org.uk/git/?a=commitdiff_plain;h=8515bbba069347de07a452586d7e49a2e8bdf151;hp=8515bbba069347de07a452586d7e49a2e8bdf151;p=libcontrac.git

Add initial crypto functionality

Adds the functionality from the crypto spec:

1. Generate random Tracing Keys.
2. Generate Daily Tracing Keys.
3. Generate Rolling Proximity Identifiers.
4. Match a list of collected beacons (RPIs) with a list of downloaded
diagnosis keys (DTKs).

Includes unit tests, but these don't currently use the official test
vectors because I don't yet know how I can get hold of them.
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