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-# libcontrac ReadMe
-
-libcontrac is an implementation of the Contact Traing API.
-
-## Install
-
-If you have autoconf you can install as follows.
-
-````
-./configure
-make
-make check
-make install
-```
-
-## Usage
-
-Include header files.
-```
-#include "contrac/contrac.h"
-#include "contrac/rpi.h"
-#include "contrac/dtk.h"
-#include "contrac/rpi_list.h"
-#include "contrac/rpi_list.h"
-#include "contrac/matches.h"
-```
-
-### Broadcasting and uploading keys
-
-Most of the functionality revolves around the Conrac structure.
-
-Create and initialise the structure as follows. The day and interval number
-should be set appropriately.
-```
-Contrac * contrac = contrac_new();
-contrac_generate_tracing_key(contrac);
-contrac_set_day_number(contrac, 23);
-contrac_set_time_interval_number(contrac, 76);
-```
-
-Get the Rolling Proxmity Identifier for broadcast in Bluetooth beacons.
-```
-// Returns a buffer containing RPI_SIZE bytes of data
-const unsigned char * rpi = contrac_get_proximity_id(contrac);
-```
-
-Get the Daily Tracing Key to upload to a Diagnosis Server in case of a positive
-test result.
-```
-// Returns a buffer containing DTK_SIZE bytes of data
-const unsigned char * dtk = contrac_get_daily_key(contrac);
-```
-
-### Receiving and matching keys
-
-Add RPIs captured via Bluetooth to an RPI list.
-```
-RpiList * rpis = rpi_list_new();
-Rpi * rpi = rpi_new();
-
-// Add captured bytes at given time
-rpi_assign(rpi, captured_bytes, time_interval_number);
-rpi_list_append(rpis, rpi);
-```
-
-Construct a list of DTKs from data downloaded from a Diagnosis Server.
-```
-DtkList * dtks = dtk_list_new();
-Dtk * dtk = dtk_new();
-
-// Add data downloaded from the server
-dtk_assign(dtk, dtk_bytes, day_number);
-dtk_list_append(dtks, dtk);
-```
-
-Having collected these two lists any matches can be tested for as follows. 
-
-```
-MatchList * matches = match_list_new();
-match_list_find_matches(matches, rpis, dtks);
-
-if (match_list_count(matches) > 0) {
-       printf("Exposure identified, follow medical advice\n");
-}
-```
-
-### Cleaning up
-
-Finally, clean up.
-```
-match_list_delete(matches);
-rpi_list_delete(rpis);
-dtk_list_delete(dtks);
-contrac_delete(contrac);
-```
-
-## Licence
-
-Copyright (c) David Llewellyn-Jones, 2020
-
-libcontrac is released under the GPL v2 Licence. Read COPYING for information on the license.
-
-## Contact and Links
-
-More information can be found at: https://www.flypig.co.uk/contrac
-
-The source code can be obtained from git:
-
-git clone git@www.flypig.org.uk:libcontrac
-
-I can be contacted via one of the following.
-
- * My website: https://www.flypig.co.uk
- * Email: at david@flypig.co.uk
-