Private-Data-Collection-and-Notification-Management-for-Contact-Tracing-Prototype

The present artifact is a proof-of-concept implementation of our protocol in Figure 4 (Section 4.2) of the related paper. As a pre-requisite of this protocol, the prototype also implements the EnrollUser protocol in Figure 3 (Section 3.3) of our paper. Each entity in these protocols is a class in this prototype, each phase of the protocols is translated to a public method of the participating entity (class). For instance, DeriveRiskList() is a method in both Gov and Store classes since both entities participate in DeriveRiskList phase of the protocol. The implementation of each method meticulously carries out the computations that are shown in the corresponding protocol diagram (in paper). For a deeper understanding of our implementation, the interested reader is directed to the associated code files, which are self-documented and self-explanatory.

Pre-requisites

• g++ compiler (v7.4.0)
• libsodium library.
• CMake v3.10.2 or higher (Optional)

Compilation

• Option 1

On the terminal, navigate to src directory. Enter following command line to compile:

g++ main.cpp user.cpp store.cpp gov.cpp setup.cpp -o pptrace -lsodium -w

• Option 2 (Requires CMake v3.10.2 or higher)

On the terminal, navigate to project directory. Enter following sequence of command lines to compile:

  mkdir build
  cd build
  cmake ..
  make

Execution

Numbers similar to those reported in Table 1 and Table 2 of our paper may now be reproduced by running the executable:

./pptrace

Output

Besides being printed on the console as the program runs, the experimental results are also saved in Contact_Tracing_Results.txt in the project directory for later reference.