More engineering than science, but Turing’s 1944 ‘Delilah’ system for portable speech encipherment had no equivalent for more than a decade. (His biographer claims “30 years” but I don’t know what he’s comparing it to.) It was never deployed and was classified by the British government, so it had no impact.
More engineering than science, but Turing’s 1944 ‘Delilah’ system for portable speech encipherment had no equivalent for more than a decade. (His biographer claims “30 years” but I don’t know what he’s comparing it to.) It was never deployed and was classified by the British government, so it had no impact.