/usr/lib/ipsec/libcharon.so.0 is in strongswan-libcharon 5.2.1-6+deb8u6.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/ipsec/libcharon.so.0.0.0
/usr/lib/ipsec/libcharon.so.0.0.0