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Q&A Using substitution ciphers to generate new alphabets in a novel

A substitution cipher is a method used in cryptography to encrypt the meaning of a text. In the most common form, a substitution cipher changes every letter in the target text with another, making...

3 answers  ·  posted 5y ago by Liquid‭  ·  last activity 5y ago by System‭

#4: Attribution notice removed by user avatar System‭ · 2019-12-13T11:56:50Z (almost 5 years ago)
Source: https://writers.stackexchange.com/q/43936
License name: CC BY-SA 3.0
License URL: https://creativecommons.org/licenses/by-sa/3.0/
#3: Attribution notice added by user avatar System‭ · 2019-12-08T11:29:04Z (almost 5 years ago)
Source: https://writers.stackexchange.com/q/43936
License name: CC BY-SA 3.0
License URL: https://creativecommons.org/licenses/by-sa/3.0/
#2: Initial revision by (deleted user) · 2019-12-08T11:29:04Z (almost 5 years ago)
A [substitution cipher](https://en.wikipedia.org/wiki/Substitution_cipher) is a method used in cryptography to encrypt the meaning of a text. In the most common form, a substitution cipher changes every letter in the target text with another, making it impossible to read without first decrypting it.

**For example, this sentence in bold is encrypted** with a substitution cipher that replaces every letter with the following on my keyboard:

> _gpt rcszqar, yjod drmyrmvr om npaf od rmvtuqyrf_

As you can see this is not a great way to generate secret text ... nor secret languages or alternative languages, since the words generated this way are mostly impossible to pronounce in any given tongue.

Yet, some forms of substitution ciphers can be interesting. One such examples acquired internet fame - [1337](https://en.wikipedia.org/wiki/Leet), or leet. Leet utilizies a lot of numbers and special characters:

> f0r 3x4mpl3, 7h15 53n73nc3 1n b0ld 15 3ncryp73d
> 
> |=0|2 3\>\<4/\/\|D|_3, 7|-|!5 53|\|73|\|(3 !|\| |30|_|) !5 3|\|(|2`/|D73|)
> 
> |#0|2 3%4|\/||\>13, +|-|!5 53|\|+3|\|(3 !|\| 801|) !5 3|\|(|2`/|\>+3|)

Now, coming to my question: **would it be advisable to use such a cipher to represent old, encrypted text in a story?** I'm focusing on sci-fi stories since they would be the most suited for this kind of substitution. With _advisable_ I mean:

- an interesting idea;
- not something that would annoy the audience.

This kind of substitution would be intended as an easter egg of sorts, just for small sections of text or small words.

#1: Imported from external source by user avatar System‭ · 2019-03-22T16:34:32Z (over 5 years ago)
Original score: 4