Someone had written [1] about breaking a Hagelin crypto machine in 1975. [1] https://www.bell-labs.com/usr/dmr/www/crypt.html https://www.bell-labs.com/usr/dmr

Someone had written [1] about breaking a Hagelin crypto machine in 1975. [1] https://www.bell-labs.com/usr/dmr/www/crypt.html https://www.bell-labs.com/usr/dmr/www/crypt.html EDIT: changed the date to that of when it was done rather than that of the document.