Quotes About Codebook

It was pretty clear, once the SKM codebook was in British hands, that the signals were not just coded but also enciphered. Codes substitute whole phrases with numbers or letters. The German navy then added an extra layer using a cipher for each number, so that each one stood for something else, using another key that the Room 40 team clearly did not possess.

At the heart of the durability of mass schooling is a brilliantly designed power fragmentation system which distributes decision-making so widely among so many different warring interests that large-scale change is impossible to those without a codebook.

And the civilian yelled, "I'm from the Times !" which made him a reporter and thus a legal kill in the codebook of the NYPD.