In article <199511091852.NAA01172@bioanalytical.com>, Beavis B. Thoopit <beavis@bioanalytical.com> wrote:

initialize buffer to '12#fjKL3_*(ASDdj1ll3_13 asdfasd-1-3!#!23' do forever /* actually until the plaintext spews out */ sleep 1 unit for each element in the buffer buffer[ element ] = magictransform( buffer[ element ] )

But the "sleep one unit" part is vulnerable, unless (a) the whole device is physically armored, which is probably not easier than armoring a memory chip; or (b) the process -- the whole device, not just a clock -- is based on some basic principle of physics that has time in the equation. -- Shields.