-=== Confidentiality leaks in the vdrive server ===
+=== Confidentiality leaks in the storage servers ===
Dirnode (and the mutable files upon which they are based) are very private
against other clients: traffic between the client and the storage servers is
filesystem, but with unlabeled edges and unknown file contents.
-=== Integrity failures in the vdrive server ===
+=== Integrity failures in the storage servers ===
The mutable file's integrity mechanism (RSA signature on the hash of the file
contents) prevents the storage server from modifying the dirnode's contents
A sufficient number of colluding storage servers can perform a rollback
attack: replace all shares of the whole mutable file with an earlier version.
-TODO: To prevent this, when retrieving the contents of a mutable file, the
-client should query more servers than necessary and use the highest available
+To prevent this, when retrieving the contents of a mutable file, the
+client queries more servers than necessary and uses the highest available
version number. This insures that one or two misbehaving storage servers
cannot cause this rollback on their own.