re dorothy denning opposes clipper capstone wiretap chips i believe there is no technical means of ensuring key escrow without the government maintaining a secret of some kind not necessarily for instance in the system outlined in the may issue of byte the process of getting one s public key listed for general use involves giving pieces of your private key to escrow agencies which do calculations on those pieces and forward the result to the publishers of the public key directory which combines these results into your listed public key if you try to give the escrow agencies pieces which don t yield your private key when they are all put together the result is that the public key listed for you is wrong and you can t read messages encrypted to you
