Turingery or Turing's Method (playfully dubbed Turingismus by Peter Ericsson, Peter Hilton and Donald Michie) was a hand codebreaking method devised in July 1942 by the mathematician and cryptanalyst Alan Turing at the British Government Code and Cypher School at Bletchley Park during World War II. It was for use in cryptanalysis of the Lorenz cipher produced by the SZ40 and SZ42 teleprinter rotor stream cipher machines, one of the Germans' Geheimschreiber (secret writer) machines. The British codenamed non-Morse traffic "Fish", and that from this machine "Tunny".
Reading a Tunny message required firstly that the logical structure of the system was known, secondly that the periodically changed pattern of active cams on the wheels was derived, and thirdly that the starting positions of the scrambler wheels for this message—the message key—was established. The logical structure of Tunny had been worked out by William Tutte and colleagues over several months ending in January 1942. Deriving the message key was called "setting" at Bletchley Park, but it was the derivation of the cam patterns—which was known as "wheel breaking"—that was the target of Turingery.
So you don't like the way we're running things
And you don't like the way the chisel glang
You want to blame it on the government
On why you got to money for your rent?
You want to start a revolution
And blame it on the institution
You know there's only one solution
Now tell me what you're gonna do son
The trigger is you, the nigger is you
The trigger is you, the nigger is you
The trigger is you, the nigger is you
So what you gonna do?
You wanna blame them boys in Lebanon
And act like you don't know where they get it from
You want to project all your problems
And murder every way to solve them
Would Jesus Christ come back American?
What if he's Iraqi and here again?
You'd have to finally face your fears, my friend
Who's gonna hold your hand when that happens?
The trigger is you, the nigger is you
The trigger is you, the nigger is you
The trigger is you, the nigger is you
So what you gonna do?
What do you teach your children about me?
What do you teach your little children about me?
Pimp, thug, bling, drug lord of the underground kings
How can you be sure I won't call down the rain?
What do you teach your little children about me?
You point your gun wait hide and run
I see it plain
The trigger is you, the nigger is you
The nigger is you, the trigger is you
The trigger is you, the nigger is you
So what you gonna do?
The trigger is you, the nigger is you
The trigger is you, the nigger is you
The trigger is you, the trigger is you