On Fri, 2 Jan 2009 16:13:45 -0500 Deepak Jain <dee...@ai.net> wrote: > > If done properly, that's actually an easier task: you build the > > update key into the browser. When it pulls in an update, it > > verifies that it was signed with the proper key. > > > > If you build it into the browser, how do you revoke it when someone > throws 2000 PS3s to crack it, or your hash, or your [pick algorithmic > mistake here]. > If you use bad crypto, you lose no matter what. If you use good crypto, 2,000,000,000 PS3s won't do the job.
--Steve Bellovin, http://www.cs.columbia.edu/~smb