[−][src]Crate contact_tracing
This crate implements the apple/google proximity contact tracing.
The version of this implementation is the initial reference spec from April 2020.
Broadcast Example
To broadcast one needs a tracing key and the rolling proximity identifier (RPI) for a given time. The RPI is normally created from the daily tracing key but there is a shortcut to derive it automatically:
use contact_tracing::{TracingKey, DailyTracingKey, Rpi}; let tkey = TracingKey::unique(); let rpi = Rpi::for_now(&tkey);
Infection Checking Example
Infection checking uses the daily tracing keys directly:
use contact_tracing::{TracingKey, DailyTracingKey, Rpi}; // normally these would come from the internet somewhere let tkey = TracingKey::unique(); let dtkey = DailyTracingKey::for_today(&tkey); for (tin, rpi) in dtkey.iter_rpis().enumerate() { // check your database of contacts against the TIN and RPIs generated // for each daily tracing key downloaded. The TIN should be within // some reasonable window of the timestamp you captured. }
Structs
DailyTracingKey | A compact representation of contact numbers. |
InvalidDailyTracingKey | Returned if a daily tracing key is invalid. |
InvalidRpi | Raised if a RPI is invalid. |
InvalidTracingKey | Raised if a tracing key is invalid. |
Rpi | A Rolling Proximity Identifier. |
TracingKey | A compact representation of contact numbers. |
Functions
day_number_for_timestamp | Returns the day number for a timestamp. |
tin_for_timestamp | Returns the TIN for a timestamp. |
tin_for_timestamp_checked | Returns the TIN for a timestamp in a day. |