On Tue, Nov 29, 2011 at 07:14:38PM +0100, Matthias Drochner wrote: > > the memset() is likely to get optimized away by the compiler anyway. > > It's a dead store after all. > > It might be by luck, but a disassembly of MD5Final() on i386 > shows that the final zeroing is present in the binary. > Generally I agree that we should make this kind of assignments > more explicit, so that we can implement it as macro if necessary.
You also want to take steps to make sure that the zeroed cache line is flushed out. -- David A. Holland dholl...@netbsd.org
