crypto-js

JavaScript library of crypto standards.

Discontinued

Active development of CryptoJS has been discontinued. This library is no longer maintained.

Nowadays, NodeJS and modern browsers have a native Crypto module. The latest version of CryptoJS already uses the native Crypto module for random number generation, since Math.random() is not crypto-safe. Further development of CryptoJS would result in it only being a wrapper of native Crypto. Therefore, development and maintenance has been discontinued, it is time to go for the native crypto module.

Node.js (Install)

Requirements:

• Node.js
• npm (Node.js package manager)

1npm install crypto-js

Usage

ES6 import for typical API call signing use case:

1import sha256 from 'crypto-js/sha256';
2import hmacSHA512 from 'crypto-js/hmac-sha512';
3import Base64 from 'crypto-js/enc-base64';
4
5const message, nonce, path, privateKey; // ...
6const hashDigest = sha256(nonce + message);
7const hmacDigest = Base64.stringify(hmacSHA512(path + hashDigest, privateKey));

Modular include:

1var AES = require("crypto-js/aes");
2var SHA256 = require("crypto-js/sha256");
3...
4console.log(SHA256("Message"));

Including all libraries, for access to extra methods:

1var CryptoJS = require("crypto-js");
2console.log(CryptoJS.HmacSHA1("Message", "Key"));

Client (browser)

Requirements:

• Node.js
• Bower (package manager for frontend)

1bower install crypto-js

Usage

Modular include:

1require.config({
2    packages: [
3        {
4            name: 'crypto-js',
5            location: 'path-to/bower_components/crypto-js',
6            main: 'index'
7        }
8    ]
9});
10
11require(["crypto-js/aes", "crypto-js/sha256"], function (AES, SHA256) {
12    console.log(SHA256("Message"));
13});

Including all libraries, for access to extra methods:

1// Above-mentioned will work or use this simple form
2require.config({
3    paths: {
4        'crypto-js': 'path-to/bower_components/crypto-js/crypto-js'
5    }
6});
7
8require(["crypto-js"], function (CryptoJS) {
9    console.log(CryptoJS.HmacSHA1("Message", "Key"));
10});

Usage without RequireJS

1<script type="text/javascript" src="path-to/bower_components/crypto-js/crypto-js.js"></script>
2<script type="text/javascript">
3    var encrypted = CryptoJS.AES(...);
4    var encrypted = CryptoJS.SHA256(...);
5</script>

API

See: https://cryptojs.gitbook.io/docs/

AES Encryption

Plain text encryption

1var CryptoJS = require("crypto-js");
2
3// Encrypt
4var ciphertext = CryptoJS.AES.encrypt('my message', 'secret key 123').toString();
5
6// Decrypt
7var bytes  = CryptoJS.AES.decrypt(ciphertext, 'secret key 123');
8var originalText = bytes.toString(CryptoJS.enc.Utf8);
9
10console.log(originalText); // 'my message'

Object encryption

1var CryptoJS = require("crypto-js");
2
3var data = [{id: 1}, {id: 2}]
4
5// Encrypt
6var ciphertext = CryptoJS.AES.encrypt(JSON.stringify(data), 'secret key 123').toString();
7
8// Decrypt
9var bytes  = CryptoJS.AES.decrypt(ciphertext, 'secret key 123');
10var decryptedData = JSON.parse(bytes.toString(CryptoJS.enc.Utf8));
11
12console.log(decryptedData); // [{id: 1}, {id: 2}]

List of modules

• crypto-js/core
• crypto-js/x64-core
• crypto-js/lib-typedarrays

---

• crypto-js/md5
• crypto-js/sha1
• crypto-js/sha256
• crypto-js/sha224
• crypto-js/sha512
• crypto-js/sha384
• crypto-js/sha3
• crypto-js/ripemd160

---

• crypto-js/hmac-md5
• crypto-js/hmac-sha1
• crypto-js/hmac-sha256
• crypto-js/hmac-sha224
• crypto-js/hmac-sha512
• crypto-js/hmac-sha384
• crypto-js/hmac-sha3
• crypto-js/hmac-ripemd160

---

• crypto-js/pbkdf2

---

• crypto-js/aes
• crypto-js/tripledes
• crypto-js/rc4
• crypto-js/rabbit
• crypto-js/rabbit-legacy
• crypto-js/evpkdf

---

• crypto-js/format-openssl
• crypto-js/format-hex

---

• crypto-js/enc-latin1
• crypto-js/enc-utf8
• crypto-js/enc-hex
• crypto-js/enc-utf16
• crypto-js/enc-base64

---

• crypto-js/mode-cfb
• crypto-js/mode-ctr
• crypto-js/mode-ctr-gladman
• crypto-js/mode-ofb
• crypto-js/mode-ecb

---

• crypto-js/pad-pkcs7
• crypto-js/pad-ansix923
• crypto-js/pad-iso10126
• crypto-js/pad-iso97971
• crypto-js/pad-zeropadding
• crypto-js/pad-nopadding

Release notes

4.2.0

Change default hash algorithm and iteration's for PBKDF2 to prevent weak security by using the default configuration.

Custom KDF Hasher

Blowfish support

4.1.1

Fix module order in bundled release.

Include the browser field in the released package.json.

4.1.0

Added url safe variant of base64 encoding. 357

Avoid webpack to add crypto-browser package. 364

4.0.0

This is an update including breaking changes for some environments.

In this version Math.random() has been replaced by the random methods of the native crypto module.

For this reason CryptoJS might not run in some JavaScript environments without native crypto module. Such as IE 10 or before or React Native.

3.3.0

Rollback, 3.3.0 is the same as 3.1.9-1.

The move of using native secure crypto module will be shifted to a new 4.x.x version. As it is a breaking change the impact is too big for a minor release.

3.2.1

The usage of the native crypto module has been fixed. The import and access of the native crypto module has been improved.

3.2.0

In this version Math.random() has been replaced by the random methods of the native crypto module.

For this reason CryptoJS might does not run in some JavaScript environments without native crypto module. Such as IE 10 or before.

If it's absolute required to run CryptoJS in such an environment, stay with 3.1.x version. Encrypting and decrypting stays compatible. But keep in mind 3.1.x versions still use Math.random() which is cryptographically not secure, as it's not random enough.

This version came along with CRITICAL BUG.

DO NOT USE THIS VERSION! Please, go for a newer version!

3.1.x

The 3.1.x are based on the original CryptoJS, wrapped in CommonJS modules.