Did The Wire invent the "Jump 5" cipher?

^{This is a version of a question I asked on Security.SE, this time with a focus on the TV side of it.}

In S01E05 of The Wire, at around the 45:00 mark, it's revealed that:

Avon Barksdale's crew encrypt their phone numbers by using a substitution cipher based on the layout of a T9 mobile phone keypad.

In more detail:

Each digit of the number, with the exception of 5 and 0, is replaced with the corresponding digit on the other side of the 5 key ("jump the five''); 5 and 0 are exchanged. Thus, 555-867-5309 becomes 000-243-0751. Devise a one-line statement to encrypt and decrypt numbers encoded in this way.

The in-universe reason for the cipher was that it had to be both secure but simple enough for low-level dealers to understand, but I've been able to find basically nothing for an out-of-universe reason.

Is there any extra material that details how the idea was devised or what the inspiration was?

realism the-wire

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Did The Wire invent the "Jump 5" cipher? - White Bird on Electric Wire

Who invented cipher code?

One of the earliest use of ciphers was with the cipher disk, invented in Italy around 1470 by Leon Battista Alberti.

Which was the first cipher device ever used?

The earliest example of the homophonic substitution cipher is the one used by Duke of Mantua in the early 1400s. Homophonic cipher replaces each letter with multiple symbols depending on the letter frequency. The cipher is ahead of the time because it combines monoalphabetic and polyalphabetic features.

What is another type of cipher Besides Caesar rot Cyr cipher wheel?

Another special case of the shift cipher (besides the Caesar cipher) is the ROT13 cipher. In this cipher, each letter is rotated thirteen places to the right (or left), resulting in each letter being replaced by the letter halfway around the English alphabet from it.

What did the clocks mean in the wire?

Marlo and his crew start to get creative with their communication, when one person in the crew wants to meet up with someone else they will send each other pictures of clocks/messages with actual times(00:00:00).

BORDERLANDS PART 10: GENERAL KNOX NEEDS A WORKOUT!

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