On Wed, Sep 26, 2007 at 09:58:12AM -0400, Jeff Lightner wrote: > I also suggest the argument is flawed because it seems to imply that > only the cksum is stored and no actual the data - it is original > compressed data AND the cksum that result in the restore - not the cksum > alone.
It's not that the actual data isn't stored, it's whether or not the actual data is checked. Some algorithms search through the hash space, and if a hit comes up, they assume that the previously stored data is a match without a comparison. The original data must always be stored. Even if it were possible to run a hash algorithm in reverse quickly, there would be no way to determine which of various possible input strings was the original. -- Darren Dunham [EMAIL PROTECTED] Senior Technical Consultant TAOS http://www.taos.com/ Got some Dr Pepper? San Francisco, CA bay area < This line left intentionally blank to confuse you. > _______________________________________________ Veritas-bu maillist - Veritas-bu@mailman.eng.auburn.edu http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu