[ILUG] Archive WORM ( write once ) Filesystem

[Rory Browne]

Hello Folks

I'm looking for a filesystem-based solution to archive signed
documents. The main requirement of this is that it be write-once, and
that files once written cannot be deleted or changed.

After much googling, I'm considering a loop-back UDF filesystem, with
the media stored as worm ( write once, read many ). The problem with
this, is that from a user point of view, it allows them to delete, or
modify files ( even though the original is still there, since the
filesystem thinks it's on a write-once medium ). I'm considering
countering this problem using a fuse-based filesystem which basicly
refuses to delete or modify exisiting files, but it seems a bit of an
ugly hack.

Does anyone know of any cleaner solution?

Rory