I believe that HUGE was voted on and approved was it not? So for the time being developers should not choose any hash they want but the one that was agreed on or else it makes hashing worthless.

While a malicious client could sent you junk data this will not be propagated using SHA1, if a client confirms (rehashes) after downloading. It will see that the data is crap and get rid of it. With a less robust hash fake data can be made that would have the same hash value and thus be allowed to propagate.

I should have said that the use of tiger tree for partial file sharing is my idea but it should work. For more on what tiger tree is go to:

http://groups.yahoo.com/group/the_gdf/message/4871