Search for a tool
Nomenclator Cipher

Tool to decrypt/encrypt with a nomenclator. The nomenclator cipher is an encrption method which replace a letter with a word or group of words (and vice versa).

Results

Nomenclator Cipher -

Tag(s) : Homophonic Substitution Cipher

Share
dCode and more

dCode is free and its tools are a valuable help in games, maths, geocaching, puzzles and problems to solve every day!
A suggestion ? a feedback ? a bug ? an idea ? Write to dCode!

Please, check our dCode Discord community for help requests!
NB: for encrypted messages, test our automatic cipher identifier!

Feedback and suggestions are welcome so that dCode offers the best 'Nomenclator Cipher' tool for free! Thank you!

# Nomenclator Cipher

## Nomenclator Encoder

### How to encrypt using Nomenclature cipher?

Nomenclator encryption uses a substitution of letters by words or words by letters or even groups of words.

It is possible to transform any word into a sentence and any sentence into word or letter. It all depends on the nomenclature used.

A classic idea is to replace each letter with a word that begins with the same letter (it is possible to try to make a sentence).

Example: To encrypt DCODE, a cipher message can be Describes Ciphering Or Decryption Easily

### How to decrypt Nomenclature cipher?

Nomenclator decryption requires knowing the nomenclature used (dictionary/alphabet/correlation table) and search and replace content.

### How to recognize Nomenclature ciphertext?

The message does not have any characteristic and if the encoding is done right it can be perfectly intelligible.

However, in the event that a letter is replaced by a unique word, the message may comprise several repeated words.

### How to decipher Nomenclature without Nomenclature?

It is impossible except in special cases.

In the case a letter is replaced by a single word, then replace each word with a random letter and perform attack using frequency analysis.

In the case where each letter has been replaced by a word beginning with the given letter, then replace each word with its first letter.

## Source code

dCode retains ownership of the "Nomenclator Cipher" source code. Except explicit open source licence (indicated Creative Commons / free), the "Nomenclator Cipher" algorithm, the applet or snippet (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, translator), or the "Nomenclator Cipher" functions (calculate, convert, solve, decrypt / encrypt, decipher / cipher, decode / encode, translate) written in any informatic language (Python, Java, PHP, C#, Javascript, Matlab, etc.) and all data download, script, or API access for "Nomenclator Cipher" are not public, same for offline use on PC, mobile, tablet, iPhone or Android app!
Reminder : dCode is free to use.

## Cite dCode

The copy-paste of the page "Nomenclator Cipher" or any of its results, is allowed as long as you cite dCode!
Cite as source (bibliography):
Nomenclator Cipher on dCode.fr [online website], retrieved on 2022-11-28, https://www.dcode.fr/nomenclator-cipher

## Need Help ?

Please, check our dCode Discord community for help requests!
NB: for encrypted messages, test our automatic cipher identifier!