/usr/ is in libcryptui-dev 3.8.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/
/usr/include/libcryptui/
/usr/share/
/usr/share/gir-1.0/
/usr/share/gir-1.0/CryptUI-0.0.gir
/usr/share/doc/
/usr/share/doc/libcryptui-dev/
/usr/share/doc/libcryptui-dev/copyright
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/cryptui-0.0.pc
/usr/include/libcryptui/cryptui-key-chooser.h
/usr/include/libcryptui/cryptui-key-combo.h
/usr/include/libcryptui/cryptui-key-list.h
/usr/include/libcryptui/cryptui-keyset.h
/usr/include/libcryptui/cryptui-key-store.h
/usr/include/libcryptui/cryptui.h
/usr/share/doc/libcryptui-dev/README
/usr/share/doc/libcryptui-dev/NEWS.gz
/usr/share/doc/libcryptui-dev/AUTHORS
/usr/share/doc/libcryptui-dev/changelog.Debian.gz
/usr/lib/x86_64-linux-gnu/libcryptui.so