cesar-encrypt

This package is used to encrypt text using Cesar's wheel method.

Installation

Install the package via npm:

npm install cesar-encrypt

How to use with TypeScript

// utils/encrypter.ts

import { cesar } from 'cesar-encrypt';

export const encryptByKey = (text: string, textKey: string) => {
  return cesar().encryptByKey(text, textKey);
};

export const desencryptByKey = (text: string, textKey: string) => {
  return cesar().desencryptByKey(text, textKey);
};

How to use a custom wheel

The default wheel is:
'abcdefghijklmnñopqrstuvwxyzABCDEFGHIJKLMNÑOPQRSTUVWXYZ0123456789áéíóúÁÉÍÓÚäëïöüÄËÏÖÜ'

You can set a custom wheel using the setAbc method:

import { cesar } from 'cesar-encrypt';

cesar().setAbc('abcABC'); // Custom wheel
const encryptedText = cesar().encrypt('abc', 1);
console.log(encryptedText); // Output: 'bca'

API Reference

setAbc(newAbc: string): void

Sets a custom alphabet (wheel) for encryption and decryption.

encrypt(text: string, position: number): string

Encrypts the given text by shifting characters by the specified position.

desencrypt(text: string, position: number): string

Decrypts the given text by reversing the shift applied during encryption.

encryptByKey(text: string, key: string): string

Encrypts the given text using a key. Each character in the key determines the shift for the corresponding character in the text.

desencryptByKey(text: string, key: string): string

Decrypts the given text using a key. Each character in the key determines the reverse shift for the corresponding character in the text.