apt update && apt install -y autoconf libtool build-essentialgit clone https://github.com/deemru/libsodium
cd libsodium
autoreconf -fvi
CFLAGS="-DED25519_NOSHA512SK" ./configure
make
sudo make installsudo find /usr | grep libsodium
sudo ln -sf /usr/local/lib/libsodium.so.23.3.0 /usr/lib/x86_64-linux-gnu/libsodium.so.23
sudo cp /usr/local/lib/libsodium.so.23.3.0 /usr/lib/x86_64-linux-gnu/libsodium.so.23.3.0
sudo cp /usr/local/lib/libsodium.so.23 /usr/lib/x86_64-linux-gnu/libsodium.so.23git clone https://github.com/deemru/Curve25519
cd Curve25519
composer install
composer testThis test ^ should end up with 2 ERRORS meaning you cannot use rseed functionality.