second-round version of SQIsign

Co-authored-by: Marius A. Aardal <marius.andre.aardal@gmail.com>
Co-authored-by: Gora Adj <gora.adj@tii.ae>
Co-authored-by: Diego F. Aranha <dfaranha@cs.au.dk>
Co-authored-by: Andrea Basso <sqisign@andreabasso.com>
Co-authored-by: Isaac Andrés Canales Martínez <icanalesm0500@gmail.com>
Co-authored-by: Jorge Chávez-Saab <jorgechavezsaab@gmail.com>
Co-authored-by: Maria Corte-Real Santos <mariascrsantos98@gmail.com>
Co-authored-by: Luca De Feo <github@defeo.lu>
Co-authored-by: Max Duparc <max.duparc@epfl.ch>
Co-authored-by: Jonathan Komada Eriksen <jonathan.eriksen97@gmail.com>
Co-authored-by: Décio Luiz Gazzoni Filho <decio@decpp.net>
Co-authored-by: Basil Hess <bhe@zurich.ibm.com>
Co-authored-by: Antonin Leroux <antonin.leroux@polytechnique.org>
Co-authored-by: Patrick Longa <plonga@microsoft.com>
Co-authored-by: Luciano Maino <mainoluciano.96@gmail.com>
Co-authored-by: Michael Meyer <michael@random-oracles.org>
Co-authored-by: Hiroshi Onuki <onuki@mist.i.u-tokyo.ac.jp>
Co-authored-by: Lorenz Panny <lorenz@yx7.cc>
Co-authored-by: Giacomo Pope <giacomopope@gmail.com>
Co-authored-by: Krijn Reijnders <reijnderskrijn@gmail.com>
Co-authored-by: Damien Robert <damien.robert@inria.fr>
Co-authored-by: Francisco Rodríguez-Henriquez <francisco.rodriguez@tii.ae>
Co-authored-by: Sina Schaeffler <sschaeffle@student.ethz.ch>
Co-authored-by: Benjamin Wesolowski <benjamin.wesolowski@ens-lyon.fr>

.github/workflows/s390-daily.yml

@@ -0,0 +1,33 @@
+name: Big-endian s390x test (Daily Workflow)
+
+on:
+  schedule:
+    - cron: '0 0 * * *'  # This cron expression means "run at midnight UTC every day"
+
+jobs:
+  s390-be:
+    strategy:
+      matrix:
+        BUILD_TYPE: [Debug, Release]
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v3
+    - name: Setup multiarch/qemu-user-static
+      run: |
+        docker run --rm --privileged multiarch/qemu-user-static:register --reset
+    - name: Run build and tests in s390x container
+      run: |
+        docker run --rm -v ${{ github.workspace }}:/workspace multiarch/ubuntu-core:s390x-focal bash -c "
+          set -x &&
+          cd /workspace &&
+          ls -l . &&
+          uname -a &&
+          lscpu | grep Endian &&
+          apt -y update &&
+          apt -y install cmake gcc libgmp-dev &&
+          cmake -B build -DCMAKE_BUILD_TYPE=${{ matrix.BUILD_TYPE }} -DSQISIGN_BUILD_TYPE=ref &&
+          cmake --build build --config ${{ matrix.BUILD_TYPE }} &&
+          cd /workspace/build &&
+          ctest -j4 -C ${{ matrix.BUILD_TYPE }}
+        "