Before considering these questions, reflect for a moment on the long battle between code makers and code breakers ​ — a conflict that is almost as old as writing itself.
Enne neile küsimustele vastamist peatugem korraks salakoodide koostajate ja lahtimurdjate vahelise lahingu pikal ajalool – vastasseisul, mis on peaaegu sama vana kui kirjutamine ise.