Validate bare protocol locally against OpenSSL reference

.github/workflows/local_openssl.yml

@@ -0,0 +1,37 @@
+name: validate-local-openssl
+
+defaults:
+  run:
+    working-directory: validation/local_ping_pong_openssl
+
+on:
+  pull_request:
+    paths-ignore:
+      - README.md
+  push:
+    branches: master
+    paths-ignore:
+      - README.md
+
+permissions:
+  contents: read
+
+env:
+  CARGO_INCREMENTAL: 0
+  RUSTFLAGS: "-Dwarnings"
+
+jobs:
+  test:
+    strategy:
+      matrix:
+        toolchain:
+          - stable
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: RustCrypto/actions/cargo-cache@master
+      - uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: ${{ matrix.toolchain }}
+      - name: Test against OpenSSL locally
+        run: cargo test

validation/README.md

@@ -6,6 +6,7 @@ between rustls and rustcrypto-rustcrypto provider under different targets.
 | Crate            | Description                                      |
 | :---             | :---                                             |
 | consumer-no_std  | Basic consumer library aiming no_std environment |
+| local_ping_pong_openssl | Local tests against OpenSSL reference     |
 
 These live in the workspace due to different dependency requirements between
 tests where development-deps may pollute the integration under test.

validation/local_ping_pong_openssl/.gitignore

@@ -0,0 +1,6 @@
+target
+certs/*.crt
+certs/*.key
+certs/*.pfx
+certs/*.srl
+certs/*.csr