/usr/share/texmf-texlive/fonts/enc/ is in texlive-font-utils 2009-10ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/texmf-texlive/fonts/enc/dvips/
/usr/share/texmf-texlive/fonts/enc/dvips/afm2pl/
/usr/share/texmf-texlive/fonts/enc/dvips/afm2pl/afm2pl-ot1.enc
/usr/share/texmf-texlive/fonts/enc/dvips/afm2pl/afm2pl-ot1ital.enc
/usr/share/texmf-texlive/fonts/enc/dvips/afm2pl/afm2pl-ot1tt.enc
/usr/share/texmf-texlive/fonts/enc/dvips/afm2pl/afm2pl-texnanlc.enc
/usr/share/texmf-texlive/fonts/enc/dvips/afm2pl/afm2pl-texnanuc.enc
/usr/share/texmf-texlive/fonts/enc/dvips/fontools/
/usr/share/texmf-texlive/fonts/enc/dvips/fontools/fontools_ly1.enc
/usr/share/texmf-texlive/fonts/enc/dvips/fontools/fontools_ot1.enc
/usr/share/texmf-texlive/fonts/enc/dvips/fontools/fontools_t1.enc
/usr/share/texmf-texlive/fonts/enc/dvips/fontools/fontools_ts1.enc
/usr/share/texmf-texlive/fonts/enc/ttf2pk/
/usr/share/texmf-texlive/fonts/enc/ttf2pk/base/
/usr/share/texmf-texlive/fonts/enc/ttf2pk/base/T1-WGL4.enc