/usr/lib/x86_64-linux-gnu/ec/libec.so is in libecc0 0.44.15-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/ec/libec.so.0.44
/usr/lib/x86_64-linux-gnu/ec/libec.so.0.44