One of the simplest forms of encryption
$ npm install --save @gykh/caesar-cipher
$ npm i -S @gykh/caesar-cipher
Encrypt and decrypt string
const { encryptString, decryptString } = require("@gykh/caesar-cipher");
...
const encrypted = encryptString(str, 3);
const decrypted = decryptString(encrypted, 3);
console.log(str === decrypted); // trueEncrypt and decrypt buffer
const { encrypt, decrypt } = require("@gykh/caesar-cipher");
const fs = require('fs');
const { promisify } = require('util');
const readFile = promisify(fs.readFile);
...
const encrypted = encrypt(await readFile(inputFile), 3);
const decrypted = decrypt(encrypted, 3);
console.log(buffer == decrypted); // trueEncrypt and decrypt streams (Use this in case of input being large data / file)
const { EncryptTransform, DecryptTransform } = require("@gykh/caesar-cipher");
const fs = require('fs');
...
const readStream = fs.createReadStream(inputFile);
const writeStream = fs.createWriteStream(outputFile);
const encryptTransform = new EncryptTransform(3);
const decryptTransform = new DecryptTransform(3);
const stream = readStream
.pipe(encryptTransform)
.pipe(decryptTransform)
.pipe(writeStream)
stream.on("error", () => /* do something */);
stream.on("finish", () => /* do something */);Type: string
Required
Type: number
Required
key should be a number between 0-25
Type: string
Required
Type: number
Required
key should be a number between 0-25
Type: Buffer
Required
Type: number
Required
key should be a number between 0-25
Type: Buffer
Required
Type: number
Required
key should be a number between 0-25
Type: number
Required
key should be a number between 0-25
Type: number
Required
key should be a number between 0-25
The Caesar cipher, also known as a shift cipher, is one of the simplest forms of encryption. It is a substitution cipher where each letter in the original message (called the plaintext) is replaced with a letter corresponding to a certain number of letters up or down in the alphabet. Learn more
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