Tests

Baremetal Benchmarks

In the course of developing COAST, it became necessary to validate that COAST-protected code operates as expected. We have collected a number of benchmarks to put COAST through different use cases. Some of these can be run on Linux, and others have been built to target a specific architecture.

Some of the tests are from known test suites, adapted to work with COAST. Others are of our own concoction. The tests are found in the repo in this directory We list some noteworthy directories below:

• aes - An implementation of AES, borrowed from this repo along with cache_test, matrixMultiply, and qsort.
• chstone - adapted from CHStone test suite.
• makefiles - the backbone of the testing setup, this directory has all of the files for configuring GNU Make to run the tests.
• TMRregression/unitTests - Small unit tests which test very specific COAST functionality. Corner cases usually uncovered when trying to protect larger applications. The directory TMRregression contains scripts for running these and other tests.

FreeRTOS Applications

Protecting a FreeRTOS kernel and application is much more complex a task than protecting a baremetal program. The files can be found here, and the COAST configuration needed to get the applications to work is detailed in the Makefile.