orsifrancesco / npm-rc4

A list of useful rc4 and base64 functions for Node.js and Browser.

npm-rc4

A list of useful rc4 and base64 functions for Node.js and Browser.
Differently from the previous version, it doesn't use atob() and btoa(); this guarantee a proper base64 conversion between different languages like PHP with base64_encode and base64_decode.

Installing

Using npm:

$ npm install npm-rc4

Node.js

const {
	rc4,
	rc4Base64Encrypt,
	rc4Base64Decrypt,
	rc4Base64,
	isBase64,
	base64encode, 
	base64decode
} = require('npm-rc4');

ES6

import {
	rc4,
	rc4Base64Encrypt,
	rc4Base64Decrypt,
	rc4Base64,
	isBase64,
	base64encode,
	base64decode
} from 'npm-rc4';

Examples

console.log(

	rc4(
		'this text is going to be encrypted',
		'your keword'
	)

);
// => ]}*g �Ù�Òo©�ÌÜ�NXàÝâ­rÀÀÛÎ�ÿ�¸

console.log(

	rc4Base64Encrypt(
		'this text is going to be encrypted and encoded with base64',
		'your keword'
	)

);
// => XX0qG8KkZ8KgwoLDmRfDkm/CqcKTw4zDnMKfTljDoMOdw6LCrXLDgMKbZ8OAw5vDjh3Dv8KCwrhWw51mXsK9wprDk8Kkw6UMfn7CvknCr24DN8KxdsOSwqFrwpQ=

console.log(

	rc4Base64Decrypt(
		'XX0qG8KkZ8KgwoLDmRfDkm/CqcKQw4bDlsKDUAjDoMOXwqbDr3bCjsKaKcOHw4zDlALDr8KCwrhWw4thTsO1w5/Dn8Kmw7kNLS4=',
		'your keword'
	)

);
// => this text is decrypted and decoded with base64

console.log(

	rc4Base64(
		'this function understands if the string have to be decoded or encoded with base64',
		'your keword'
	)

);
// => XX0qG8KkdcKwwpTDjkPDknPDp8OUw5bDm8KVTArDp8OGwqPCoXPCk8OeYMOFwonDgwXDrsOHwq8Cw45hVMO6w5/DlcKmw7wNO27DsR7CpH9Lc8K2dMOOwqA4w4TCicO4T8KHAzNlw4RvOsOvwp/DgSlgw6swwr3CpC1Swq14

console.log(

	rc4Base64(
		'XX0qG8KkdcKwwpTDjkPDknPDp8OUw5bDm8KVTArDp8OGwqPCoXPCk8OeYMOFwonDgwXDrsOHwq8Cw45hVMO6w5/DlcKmw7wNO27DsR7CpH9Lc8K2dMOOwqA4w4TCicO4T8KHAzNlw4RvOsOvwp/DgSlgw6swwr3CpC1Swq14',
		'your keword'
	)
	
);
// => this function understands if the string have to be decoded or encoded with base64

console.log(

	isBase64('Y2lhbw==')
	
);
// => true

console.log(

	isBase64('this string is not base64 of course')
	
);
// => false

console.log(

	base64encode('this string will be encoded with base64')
	
);
// => dGhpcyBzdHJpbmcgd2lsbCBiZSBlbmNvZGVkIHdpdGggYmFzZTY0

console.log(

	base64decode('dGhpcyBzdHJpbmcgd2lsbCBiZSBkZWNvZGVkIHdpdGggYmFzZTY0')
	
);
// => this string will be decoded with base64

That's it :)

Demo

Just a example project where you can see npm-rc4 in action..

License

Licensed under MIT