Rockex, or Telekrypton, was an offline one-time tape cipher machine known to have been used by Britain and Canada from 1943. It was developed by Benjamin deForest Bayly, working during the war for British Security Coordination.
"Rockex" was named after the Rockefeller Center, together with the tradition for naming British cipher equipment with the suffix "-ex" (e.g. Typex).
In 1944 an improved Rockex II first appeared. There were also a Mark III and Mark V. After the war it was used by British consulates and embassies until 1973, although a few continued in use until the mid-1980s.
After WW2 the Rockex machines and the code tapes were manufactured in great secrecy under the control of the Secret Intelligence Service (SIS), also known as MI6, at a small factory at Number 4 Chester Road, Borehamwood on the northern outskirts of London. To minimise the number of people who knew about the process, MI6's head of communications, Brigadier Sir Richard Gambier-Parry, took out a personal lease on the factory buildings and employed people through the local labour exchange as an entirely private venture ostensibly unconnected with government. The end product was then sold to the government departments who used the machines. This was not discovered by the UK Treasury until 1951 who were most concerned that no form of financial auditing had ever been exercised over the organisation. The Treasury officials were eventually convinced that the factory needed to be treated as a special case and they allowed it to continue privately but with a special arrangement for top secret auditing (Natl Archives file T220/1444)
Wet bars on the boat, wet broad money low
Real like Scott, storch off from the coke
Maybachs were a dream, now it's all real
It's hard to get sleep laying next to 5 mil
Still get the chills, I call 'em the goosebumps
Ya Alex, had a vision I'm building like two trumps
Step in goosebumps, I'm the main event
Got a pocket full of game bring the main intent
Six bitches phone numbers on the same napkin
Now that's what the fuck I call a chain reaction
You see it, these niggas living off the pad
Ya, I ran 100 miles but I did it all with class
Hands all glass, wrists all glass
Real on heron how long will the crystal last
Champaign to pour celebrate the cause
Hover above the law at the mercy of the lawyers
What's worst a testimony from your homie?
Tables turn quick, I told you not to fuck with Tony
You started with the dishes then it went to digits
I had to cross friendships, it's rules to the business
All the time with a sitar like Gina
Beauty salon dream got the keys in the beamer
On the way to cheetahs pointing an army
Land my spaceship with the spoilers on it
Seen the UFOs, FBI, ATF, let 'em know how a nigga ride
44 with 45s and 64s, half a pill two dimes six folks
I need a slice of the pie, 456 as i throw the dice in the sky
Head crack nigga, bread stacks, nigga
Convertible purp, ya I let my hat back, nigga
Lamborghini's and Mazerattis for mediocres
When the lease over back to the streets soldier
Call cold shoulder mike make me bring the heats over
When the beefs over mike see the peach rovas
We the eats while we trying to reach each quota
No soda rolls rolla one owner
Broad yayo eighty grand one corner
Luis Vuitton right size don't want 'em
They tripping, I'm tripping in Tiffany stones
Get a mop, Peter prop, I'm living it homes
Chauffeur I blow purp and no skirts
4 chains will put you down with more work