Add SHA-256 sum computation to CI.

.github/workflows/opensk_build.yml

@@ -24,8 +24,16 @@ jobs:
       - name: Set up OpenSK
         run: ./setup.sh
 
+      - name: Building sha256sum tool
+        uses: actions-rs/cargo@v1
+        with:
+          command: build
+          args: --manifest-path third_party/tock/tools/sha256sum/Cargo.toml
+
       - name: Building OpenSK
         uses: actions-rs/cargo@v1
         with:
           command: build
           args: --release --target=thumbv7em-none-eabi --features with_ctap1
+      - name: Compute SHA-256 sum
+        run: ./third_party/tock/tools/sha256sum/target/debug/sha256sum target/thumbv7em-none-eabi/release/ctap2

run_desktop_tests.sh

@@ -24,6 +24,9 @@ cd libraries/crypto
 cargo fmt --all -- --check
 cd ../..
 
+echo "Building sha256sum tool..."
+cargo build --manifest-path third_party/tock/tools/sha256sum/Cargo.toml
+
 echo "Checking that CTAP2 builds properly..."
 cargo check --release --target=thumbv7em-none-eabi
 cargo check --release --target=thumbv7em-none-eabi --features with_ctap1
@@ -39,6 +42,7 @@ cargo check --release --target=thumbv7em-none-eabi --examples
 
 echo "Checking that CTAP2 builds and links properly (1 set of features)..."
 cargo build --release --target=thumbv7em-none-eabi --features with_ctap1
+./third_party/tock/tools/sha256sum/target/debug/sha256sum target/thumbv7em-none-eabi/release/ctap2
 
 echo "Checking that supported boards build properly..."
 make -C third_party/tock/boards/nordic/nrf52840dk