React Native CryptoJS

📢 : Not Actively Maintained

React Native JavaScript Library of crypto-js.

Install

yarn add rn-crypto-js

List of Algorithms

Hashing	HMAC	CIPHERS	PBKDF2
MD5	HMAC-MD5	AES	PBKDF2
SHA1	HMAC-SHA1	DES
SHA256	HMAC-SHA256	TripleDES
SHA224	HMAC-SHA224	RC4
SHA512	HMAC-SHA512	RC4Drop
SHA384	HMAC-SHA384	RABBIT
SHA3	HMAC-SHA3
RIPEMD160	HMAC-RIPEMD160

Plain text encryption

import CryptoJS from "rn-crypto-js";

// Encrypt
const ciphertext = CryptoJS.AES.encrypt('my message', 'secret key 123').toString();

// Decrypt
const decryptedData  = CryptoJS.AES.decrypt(ciphertext, 'secret key 123').toString(CryptoJS.enc.Utf8);
console.log(decryptedData); // 'my message'

Object encryption

import CryptoJS from "rn-crypto-js";
const data = [{id: 1}, {id: 2}]

// Encrypt
const ciphertext = CryptoJS.AES.encrypt(JSON.stringify(data), 'secret key 123').toString();

// Decrypt
const decryptedString  = CryptoJS.AES.decrypt(ciphertext, 'secret key 123').toString(CryptoJS.enc.Utf8);
const decryptedData = JSON.parse(decryptedString);
console.log(decryptedData); // [{id: 1}, {id: 2}]

Hashing

MD5

MD5 is a widely used hash function. It's been used in a variety of security applications and is also commonly used to check the integrity of files. Though, MD5 is not collision resistant, and it isn't suitable for applications like SSL certificates or digital signatures that rely on this property.

const hash = CryptoJS.MD5("Message").toString();

SHA1

The SHA hash functions were designed by the National Security Agency (NSA). SHA-1 is the most established of the existing SHA hash functions, and it's used in a variety of security applications and protocols. Though, SHA-1's collision resistance has been weakening as new attacks are discovered or improved.

const hash = CryptoJS.SHA1("Message").toString();

SHA256

SHA-256 is one of the four variants in the SHA-2 set. It isn't as widely used as SHA-1, though it appears to provide much better security.

const hash = CryptoJS.SHA256("Message").toString();

SHA224

const hash = CryptoJS.SHA224("Message").toString();

SHA384

const hash = CryptoJS.SHA384("Message").toString();

SHA512

const hash = CryptoJS.SHA512("Message").toString();

SHA3

SHA-3 is the winner of a five-year competition to select a new cryptographic hash algorithm where 64 competing designs were evaluated.

const hash = CryptoJS.SHA3("Message").toString();

RIPEMD160

const hash = CryptoJS.RIPEMD160("Message").toString();

HMAC

HMAC-MD5

const hash = CryptoJS.MD5("Message").toString();

HMAC-SHA1

const hash = CryptoJS.SHA1("Message").toString();

HMAC-SHA256

const hash = CryptoJS.SHA256("Message").toString();

HMAC-SHA224

const hash = CryptoJS.SHA224("Message").toString();

HMAC-SHA384

const hash = CryptoJS.SHA384("Message").toString();

HMAC-SHA512

const hash = CryptoJS.SHA512("Message").toString();

HMAC-SHA3

const hash = CryptoJS.SHA3("Message").toString();

HMAC-RIPEMD160

const hash = CryptoJS.HMACRIPEMD160("Message").toString();

Ciphers

AES

The Advanced Encryption Standard (AES) is a U.S. Federal Information Processing Standard (FIPS). It was selected after a 5-year process where 15 competing designs were evaluated.

const encrypted = CryptoJS.AES.encrypt("Message", "5ecret").toString();
​
const decrypted = CryptoJS.AES.decrypt(encrypted, "5ecret").toString(CryptoJS.enc.Utf8);

DES

DES is a previously dominant algorithm for encryption, and was published as an official Federal Information Processing Standard (FIPS). DES is now considered to be insecure due to the small key size.

const encrypted = CryptoJS.DES.encrypt("Message", "5ecret").toString();
​
const decrypted = CryptoJS.DES.decrypt(encrypted, "5ecret").toString(CryptoJS.enc.Utf8);

TripleDES

Triple DES applies DES three times to each block to increase the key size. The algorithm is believed to be secure in this form.

const encrypted = CryptoJS.TripleDES.encrypt("Message", "5ecret").toString();
​
const decrypted = CryptoJS.TripleDES.decrypt(encrypted, "5ecret").toString(CryptoJS.enc.Utf8);

RC4

RC4 is a widely-used stream cipher. It's used in popular protocols such as SSL and WEP. Although remarkable for its simplicity and speed, the algorithm's history doesn't inspire confidence in its security.

const encrypted = CryptoJS.RC4.encrypt("Message", "5ecret").toString();
​
const decrypted = CryptoJS.RC4.decrypt(encrypted, "5ecret").toString(CryptoJS.enc.Utf8);

RC4Drop

It was discovered that the first few bytes of keystream are strongly non-random and leak information about the key. We can defend against this attack by discarding the initial portion of the keystream. This modified algorithm is traditionally called RC4-Drop.

const encrypted = CryptoJS.RC4Drop.encrypt("Message", "5ecret").toString();
​
const decrypted = CryptoJS.RC4Drop.decrypt(encrypted, "5ecret").toString(CryptoJS.enc.Utf8);

Rabbit

Rabbit is a high-performance stream cipher and a finalist in the eSTREAM Portfolio. It is one of the four designs selected after a 3 1/2-year process where 22 designs were evaluated.

const encrypted = CryptoJS.Rabbit.encrypt("Message", "5ecret").toString();
​
const decrypted = CryptoJS.Rabbit.decrypt(encrypted, "5ecret").toString(CryptoJS.enc.Utf8);

PBKDF2

PBKDF2 is a password-based key derivation function. In many applications of cryptography, user security is ultimately dependent on a password, and because a password usually can't be used directly as a cryptographic key, some processing is required.

const salt = CryptoJS.lib.WordArray.random(128 / 8);
const key128Bits = CryptoJS.PBKDF2("Secret Passphrase", salt, {
  keySize: 128 / 32
}).toString();

const key256Bits = CryptoJS.PBKDF2("Secret Passphrase", salt, {
  keySize: 256 / 32
}).toString();

const key512Bits = CryptoJS.PBKDF2("Secret Passphrase", salt, {
  keySize: 512 / 32
}).toString();

const key512Bits1000Iterations = CryptoJS.PBKDF2("Secret Passphrase", salt, {
  keySize: 512 / 32,
  iterations: 1000
}).toString();

Contributing

Check the issues and pull requests to see if the idea or bug you want to share about is already present. If you don't see it, do one of the following:

• If it is a small change, just fork the project and create a pull request.
• If it is major, start by opening an issue.

License

Please see LICENSE for more info.